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    产品型号HA12155的Datasheet PDF文件预览

    HA12155NT/HA12157NT  
    Audio Signal Processor for Cassette Deck (Dolby B/C-type NR  
    with Recording System)  
    ADE-207-115C (Z)  
    4th Edition  
    June 1997  
    Description  
    HA12155NT/HA12157NT is silicon monolithic bipolar IC providing Dolby noise reduction system*,  
    electrical volume system, REC equalizer system and level meter system in one chip.  
    Functions  
    •
    •
    •
    •
    REC equalizer  
    Dolby B/C NR  
    Electronic volume  
    Level Meter  
    × 2 channel  
    × 2 channel  
    × 2 channel  
    × 2 channel  
    Features  
    •
    •
    •
    •
    •
    Inductor less REC equalizer is adjustable of its characteristics by external resistor  
    Rec level is adjustable automatically with electrical volume which is built-in  
    3 type of input selection is available (one is by way of electrical volume)  
    Separate input selection SW and REC/PB SW  
    Dolby noise reduction with dubbing cassette decks  
    (Unprocessed signal output available from recording out terminals during PB mode)  
    Log-compressed level meter output is range from 0 V to 5 V  
    •
    (Usable as music search switchable gain of 0 dB and 20 dB respectivily)  
    Normal-speed/high-speed (Double), normal/metal/chrome fully electronic control switching built-in  
    NR-ON/OFF, Dolby B/C, MPX ON/OFF fully electronic control switching built-in  
    (Controllable from micro-controller directly)  
    •
    •
    •
    •
    Reduction of number of pin by transfered serial data to electronic volume control switching and another  
    control switching  
    (Controllable from micro-controller directly)  
    Low external parts count  
    HA12155NT/HA12157NT  
    *
    Dolby is a trademark of Dolby Laboratories Licensing Corporation.  
    A license from Dolby Laboratories Licensing Corporation is required for the use of this IC.  
    Ordering Information  
    Operating voltage  
    Type  
    Package  
    Dolby Level  
    REC-OUT Level PB-OUT Level Min  
    Max  
    16 V  
    16 V  
    HA12155NT  
    HA12157NT  
    DP-64S  
    300 mVrms  
    300 mVrms  
    580 mVrms  
    775 mVrms  
    9.5 V  
    12 V  
    Rev.4, Jun. 1997, page 2 of 57  
    HA12155NT/HA12157NT  
    Block Diagram  
    Rev.4, Jun. 1997, page 3 of 57  
    HA12155NT/HA12157NT  
    Absolute Maximum Ratings  
    Item  
    Symbol  
    VCC  
    Ratings  
    16  
    Unit  
    V
    Supply voltage  
    Power dissipation*1  
    Operating temperature  
    Storage temperature  
    Note: 1. Value at Ta ≤ 75°C  
    Pd  
    770  
    mW  
    °C  
    Topr  
    Tstg  
    –30 to +75  
    –55 to +125  
    °C  
    Electrical Characteristics (Ta = 25°C VCC = 14 V Dolby level 300 mVrms)  
    Item  
    Symbol  
    IQ  
    Min Typ Max Unit  
    — 29.0 37.0 mA  
    Test conditions  
    no signal  
    Notes  
    Quiescent current  
    Input amp gain  
    GVIA RPI  
    GVIA PBI  
    18.5 20.0 21.5 dB  
    18.5 20.0 21.5  
    Vin = 0 dB, f = 1 kHz  
    B-type NR Encode Boost B-ENC-2K  
    B-ENC-5K  
    2.8  
    1.7  
    4.3  
    3.2  
    5.9  
    5.8  
    4.7  
    7.9  
    dB  
    Vin = –20 dB, f = 2 kHz  
    Vin = –20 dB, f = 5 kHz  
    Vin = –20 dB, f = 1 kHz  
    Vin = –60 dB, f = 1 kHz  
    Vin = –30 dB, f = 700 Hz  
    f = 1 kHz, THD = 1%,  
    C-type NR Encode Boost C-ENC-1K(1) 3.9  
    dB  
    C-ENC-1K(2) 18.1 19.6 21.6  
    C-ENC-700  
    Vomax  
    9.8  
    11.8 13.8  
    Signal handling  
    12.0 13.0  
    —
    dB  
    *1  
    VCC = 12 V  
    Signal to noise ratio  
    S/N  
    60.0 63.0  
    —
    dB  
    %
    Rg = 5.1 kΩ, CCIR/ARM  
    Vin = 0 dB, f = 1 kHz  
    Vin = 0 dB, f = 1 kHz  
    Total harmonic distortion THD  
    —
    —
    0.08 0.3  
    Crosstalk  
    CT (R↔L)  
    –85.0 –79.0 dB  
    –80.0 –74.0  
    CT (RPI↔PBI) —  
    CT (VRI↔RPI) —  
    –77.0 –71.0  
    Control  
    Hi level  
    Lo level  
    Hi level  
    Lo level  
    VcH  
    VcL  
    VsH  
    VsL  
    3.5  
    —
    —
    —
    —
    5.3  
    1.0  
    5.3  
    1.0  
    V
    V
    MPX ON/OFF, NR  
    ON/OFF C-NR/B-NR  
    CLK, DATA, STB  
    voltage  
    –0.2  
    3.5  
    Serial data  
    voltage  
    –0.2  
    PB-out level HA12155 Vout  
    HA12157  
    500 580 670 mVrms Vin = 0 dB, f = 1 kHz  
    665 775 900  
    PB-offset  
    Vofs  
    –100 0.0  
    –1.0 0.0  
    +100 mV  
    1.0 dB  
    no signal  
    Channel balance  
    Volume gain  
    ∆GV  
    Vin = 0 dB, f = 1 kHz  
    Vin = 100 mVrms, f =1 kHz  
    Vin = 3 Vrms, f = 1 kHz  
    GVVR (MAX)  
    GVVR (MIN)  
    17.5 19.3 21.5 dB  
    –55.0  
    —
    —
    Rev.4, Jun. 1997, page 4 of 57  
    HA12155NT/HA12157NT  
    Electrical Characteristics (Ta = 25°C VCC = 14 V Dolby level 300 mVrms) (cont)  
    Item  
    Symbol  
    Min Typ Max Unit  
    –80.0 dB  
    Test conditions  
    Notes  
    Volume mute  
    GVVR (MUT)  
    —
    —
    Vin = 3 Vrms, f = 1 kHz  
    f = 1 kHz, THD = 1%,  
    Max-input level to volume Vin max (VR) 11.0 12.6  
    —
    dBs  
    VCC = 12 V  
    Volume S/N  
    Volume THD  
    Equalizer gain  
    S/N (VR)  
    THD (VR)  
    GV EQ (500)  
    GV EQ (1K)  
    78.0 84.0  
    —
    dB  
    %
    Vin = 100 mVrms, f = 1  
    kHz, A-WTG  
    —
    0.04 0.3  
    Vin = 100 mVrms, f = 1  
    kHz  
    13.0 15.0 17.0 dB  
    13.0 15.0 17.0  
    14.5 16.5 18.5  
    18.5 20.5 22.5  
    29.5 32.0 34.5  
    Vin = 77.5 mVrms,  
    f = 500 Hz  
    Vin = 77.5 mVrms,  
    f = 1 kHz  
    GV EQ (5K)  
    Vin = 77.5 mVrms,  
    f = 5 kHz  
    GV EQ (10K)  
    GV EQ (20K)  
    Equalizer maximum input Vin max (EQ) –8.0 –7.0  
    Vin = 77.5 mVrms,  
    f = 10 kHz  
    Vin = 77.5 mVrms,  
    f = 20 kHz  
    —
    dBs  
    f = 1 kHz, THD = 1%,  
    VCC = 12 V  
    *1  
    Equalizer S/N  
    Equalizer THD  
    S/N (EQ)  
    THD (EQ)  
    57.0 62.0  
    0.2  
    —
    dB  
    %
    Rg = 5.1 kΩ, A-WTG  
    —
    0.5  
    Vin = 77.5 mVrms,  
    f = 1 kHz  
    Equalizer offset  
    Vofs (EQ)  
    LM (0 dB)  
    LM (12 dB)  
    –400 0.0  
    +400 mV  
    no signal  
    Level meter output  
    2.60 2.85 3.10  
    3.60 3.90 4.20  
    V
    V
    V
    V
    Vin = 0 dB, f = 1 kHz  
    Vin = 12 dB, f = 1 kHz  
    Vin = –20 dB, f = 1 kHz  
    *2  
    *2  
    Level meter output  
    Level meter offset  
    LM (–20 dB)1 0.80 1.10 1.40  
    LM (–20 dB)2 2.55 3.0 3.15  
    Vin = –20 dB, f = 1 kHz,  
    –20 dB range  
    LMofs 1  
    LMofs 2  
    —
    —
    150 300 mV  
    200 350  
    no signal  
    no signal, –20 dB range  
    Notes: 1. HA12155 VCC = 9.5 V, HA12157 VCC = 12 V  
    2. 0 dB = PB-OUT level  
    Rev.4, Jun. 1997, page 5 of 57  
    HA12155NT/HA12157NT  
    Test Circuit  
    Rev.4, Jun. 1997, page 6 of 57  
    HA12155NT/HA12157NT  
    Example of Split Supply Circuit  
    Rev.4, Jun. 1997, page 7 of 57  
    HA12155NT/HA12157NT  
    Mode Controller  
    Rev.4, Jun. 1997, page 8 of 57  
    HA12155NT/HA12157NT  
    Pin Description (VCC = 14 V, Ta = 25°C, No signal, the value in the table show typical  
    value)  
    Pin No.  
    DP-64S  
    7
    Terminal  
    name  
    RPI  
    DC  
    Zin  
    voltage  
    VCC/2  
    Equivalent circuit  
    Description  
    100 kΩ  
    Recording input  
    58  
    9
    PBI  
    Play back input  
    56  
    21  
    LM IN  
    HA12155  
    Level meter input  
    ---75 kΩ  
    44  
    HA12157  
    ---100 kΩ  
    24  
    41  
    5
    EQ IN  
    VRI  
    100 kΩ  
    100 kΩ  
    Equalyzer input  
    Volume input  
    VCC/2  
    +0.7 V  
    VCC  
    60  
    4
    VCC  
    —
    —
    —
    —
    —
    Power supply  
    Ripple filter  
    8
    REF  
    NR IN  
    VCC/2  
    VCC/2  
    12  
    53  
    NR processor input  
    15  
    50  
    SS 1  
    —
    VCC/2  
    Spectral skewing amp  
    input  
    Rev.4, Jun. 1997, page 9 of 57  
    HA12155NT/HA12157NT  
    Pin Description (VCC = 14 V, Ta = 25°C, No signal, the value in the table show typical  
    value) (cont)  
    Pin No.  
    DP-64S  
    17  
    Terminal  
    name  
    DC  
    Zin  
    voltage  
    VCC/2  
    Equivalent circuit  
    Description  
    CCR  
    —
    Current controled  
    resistor output  
    48  
    11  
    54  
    IA OUT  
    —
    VCC/2  
    Input amp output  
    VCC  
    GND  
    13  
    52  
    14  
    51  
    16  
    49  
    20  
    45  
    26  
    39  
    VREF  
    Reference voltage  
    buffer output  
    PB OUT  
    SS 2  
    Play back (Decode)  
    output  
    Spectral skewing  
    amp. output  
    REC OUT  
    EQ OUT  
    Recording (Encode)  
    output  
    Equalyzer output  
    Rev.4, Jun. 1997, page 10 of 57  
    HA12155NT/HA12157NT  
    Pin Description (VCC = 14 V, Ta = 25°C, No signal, the value in the table show typical  
    value) (cont)  
    Pin No.  
    DP-64S  
    18  
    Terminal  
    name  
    DC  
    Zin  
    voltage  
    2.3 V  
    Equivalent circuit  
    Description  
    Time constant pin for  
    rectifier  
    HLS DET  
    —
    47  
    19  
    46  
    57  
    LLS DET  
    BIAS  
    —
    —
    0.28 V  
    1.2 V  
    Dolby NR Reference  
    current input  
    GND  
    25  
    IREF  
    EQ Reference current  
    input  
    27  
    28  
    29  
    30  
    31  
    32  
    FM  
    fQ  
    EQ Parameter current  
    input  
    f/Q  
    GH  
    GL  
    GP  
    Rev.4, Jun. 1997, page 11 of 57  
    HA12155NT/HA12157NT  
    Pin Description (VCC = 14 V, Ta = 25°C, No signal, the value in the table show typical  
    value) (cont)  
    Pin No.  
    DP-64S  
    33  
    Terminal  
    name  
    HM  
    DC  
    Zin  
    voltage  
    —
    Equivalent circuit  
    Description  
    —
    EQ Parameter  
    selector  
    GND  
    34  
    35  
    36  
    37  
    38  
    6
    HC  
    HN  
    NM  
    NC  
    NN  
    CNT  
    5.2 kΩ  
    VCC/2-  
    DAC output Volume  
    control input  
    59  
    1.5 V to  
    VCC/2  
    VCC/ 2  
    DAC  
    out  
    22  
    43  
    LMD  
    —
    0.2 V  
    Time constant Pin for  
    level meter  
    LM OUT  
    GND  
    LMD  
    23  
    42  
    LM OUT  
    —
    0.2 V  
    Level meter output  
    Rev.4, Jun. 1997, page 12 of 57  
    HA12155NT/HA12157NT  
    Pin Description (VCC = 14 V, Ta = 25°C, No signal, the value in the table show typical  
    value) (cont)  
    Pin No.  
    DP-64S  
    1
    Terminal  
    name  
    DC  
    Zin  
    voltage  
    —
    Equivalent circuit  
    Description  
    NR  
    100 kΩ  
    Mode control input  
    ON/OFF  
    D - GND  
    GND  
    2
    3
    C/B  
    MPX  
    ON/OFF  
    62  
    63  
    64  
    10  
    STB  
    CLK  
    DATA  
    INJ  
    —
    0.7 V  
    —
    Injection current input  
    for I2L  
    55  
    40  
    61  
    D-GND  
    GND  
    —
    —
    0.0 V  
    0.0 V  
    —
    —
    Digital (Logic) ground  
    Ground  
    Application Note  
    Power Supply Range  
    HA12155NT/HA12157NT are designed to operate on either single supply or split supply.  
    The operating range of the supply voltage is shown in table 1.  
    Table 1  
    Supply Voltage  
    Type No.  
    Single supply  
    9.5 V to 16 V  
    12 V to 16 V  
    Split supply  
    ±6 V to 8 V  
    ±6 V to 8 V  
    HA12155NT  
    HA12157NT  
    The lower limit of supply voltage depends on the line output reference level.  
    Rev.4, Jun. 1997, page 13 of 57  
    HA12155NT/HA12157NT  
    The minimum value of the headroom margin is specified as 12 dB by Dolby Laboratories. HA12155 series  
    are provided with two line output level, which will permit an optimum headroom margin for power supply  
    conditions.  
    Reference Voltage  
    For the single supply operation these devices provide the reference voltage of half the supply voltage that is  
    the signal grounds. As the peculiarity of these devices, the capacitor for the ripple filter is very small about  
    1/100 compared with their usual value. The Reference voltage are provided for the left channel and the  
    right channel separately. The block diagram is shown as figure 1.  
    52  
    VCC  
    +
    –
    L channel  
    reference  
    R channel  
    reference  
    8
    –
    +
    +
    1 µF  
    13  
    Figure 1 The Block Diagram of Reference Voltage Supply  
    Operating Mode Control  
    HA12155NT/HA12157NT provides fully electronic switching circuits. NR-ON/OFF, C/B, and MPX  
    ON/OFF switches are controlled by parallel data (DC voltage) and other switches are controlled by serial  
    data.  
    Rev.4, Jun. 1997, page 14 of 57  
    HA12155NT/HA12157NT  
    Table 2  
    Threshold Voltage (VTH)  
    Pin No.  
    1, 2, 3  
    Lo  
    Hi  
    Unit  
    V
    –0.2 to 1.0  
    –0.2 to 1.0  
    3.5 to 5.3  
    3.5 to 5.3  
    62, 63, 64  
    V
    Notes: 1. Voltages shown above are determined by internal circuits of LSI when take pin 55 (DGND pin) as  
    reference pin. On split supply use, same VTH can be offered by connecting DGND pin to GND  
    pin.  
    This means that it can be controlled directly by micro processor.  
    2. Each pins are on pulled down with 100 kΩ internal resistor.  
    Therefore, it will be low-level when each pins ar open.  
    3. Note on serial data inputting  
    (a) The clock frequency on CLK must be less than 500 kHz.  
    (b) Over shoot level and under shoot level of input signal must be the value shown below.  
    (c) The serial input pins (pins 62, 63, and 64) are extremely sensitive to undershoot, overshoot,  
    ringing, and noise. This can result in malfunctions due to problems with the wiring pattern.  
    We recommend attaching capacitors in parallel with the serial input pins to ameliorate this  
    problem.  
    Figure 2-b shows an example of this circuit appropriate when the clock frequency is 500  
    kHz. The value of the capacitor should be set in accordance with the clock frequency  
    actually used.  
    4. NR Mode Switching  
    In actual use, pop noises may accompany NR on/off switching in C mode. To avoid these  
    noises, use the following sequences to turn NR on and off.  
    From C mode NR off to C mode NR on:  
    (C mode, NR off) → (B mode, NR off) → (B mode, NR on) → (C mode, NR on).  
    From C mode NR on to C mode NR off:  
    (C mode, NR on) → (B mode, NR on) → (B mode, NR off) → (C mode, NR off).  
    Table 3  
    Switching Truth Table  
    Lo  
    Pin No.  
    Hi  
    1
    2
    3
    NR-OFF  
    B-NR  
    NR-ON  
    C-NR  
    MPX-ON  
    MPX-OFF  
    Notes: 1. Low level will be offered when each pins are open.  
    2. Please refer to next term as for the serial data for formatting.  
    When connecting microcomputer or Logic-IC with HA12155NT/HA12157NT directly, there is  
    apprehension of rash-current under some transition timming of raising voltage or falling voltage at VCC  
    ON/OFF.  
    For this countermeasure, connect 10 kΩ to 20 kΩ resistor with each pins. It is shown in test circuit.  
    Rev.4, Jun. 1997, page 15 of 57  
    HA12155NT/HA12157NT  
    under 5.3 V  
    0
    within –0.2 V  
    Figure 2 Input Level  
    Serial Data Formatting  
    8 bit shift register is employed. CLK and DATA are stored during STB being high and data is ratched  
    when STB goes high to low. The clock frequency on CLK must be less than 500 kHz.  
    5 V  
    CLK  
    0 V  
    5 V  
    DATA  
    STB  
    0
    1
    2
    3
    4
    5
    6
    7
    0 V  
    5 V  
    0 V  
    latch of data  
    Figure 3 Serial Data Timming Chart  
    Rev.4, Jun. 1997, page 16 of 57  
    HA12155NT/HA12157NT  
    Table 4  
    Serial Data Formatting  
    Bit Control  
    No. register  
    Volume register  
    0
    TAPE  
    H
    DAC0  
    SELECT 1  
    L
    TS1  
    TS2  
    bit No.  
    H
    L
    gain  
    5
    L
    L
    L
    L
    4
    L
    L
    L
    L
    3
    L
    L
    L
    L
    2
    L
    L
    L
    L
    1
    L
    0
    L
    TAPE IV  
    TAPE  
    TAPE  
    I
    I
    H
    increase  
    L
    H
    L
    TAPE II  
    L
    H
    H H  
    H H H H  
    L
    H
    L
    decrese  
    mute  
    H H H H H  
    H H H H H H  
    1
    2
    3
    4
    TAPE  
    H
    L
    DAC1  
    *mute is implemented when all  
    bits are high.  
    SELECT 2  
    TAPE  
    H
    L
    High (double) speed selection DAC2  
    Normal speed selection  
    SPEED  
    METER  
    SENSITIVITY  
    INPUT  
    H
    L
    Meter sensitivity 20 dB up  
    Meter sensitivity normal  
    DAC3  
    H
    L
    DAC4  
    SELECT 1  
    IS1  
    H
    PB  
    RP  
    L
    VR  
    VR  
    IS2  
    I
    I
    I
    I
    H
    L
    5
    6
    7
    INPUT  
    H
    L
    DAC 5  
    SELECT 2  
    REC/PB  
    H
    L
    PB mode selection  
    REC mode selection  
    R/L SELECT H Rch register selection  
    L
    L
    Lch register selection  
    REGISTER  
    SELECT  
    H
    Control register selection  
    REGISTER  
    SELECT  
    Volume register selection  
    Note: TAPE I: Normal tape, TAPE II: Chrome tape, TAPE IV: Metal tape  
    Rev.4, Jun. 1997, page 17 of 57  
    HA12155NT/HA12157NT  
    Input Block Diagram and Level Diagram  
    –3 dB  
    PB - OUT  
    NR  
    lN  
    IA  
    OUT  
    MPX  
    Filter  
    HA12155  
    580 mVrms  
    RPI PBI  
    (–2.5 dBs)  
    HA12157  
    775 mVrms  
    (0 dBs)  
    43 mVrms  
    (–25.2 dBs)  
    426 mVrms 300 mVrms  
    43 mVrms  
    (–25.2 dBs)  
    (–5.2 dBs)  
    (–8.2 dBs)  
    MPX ON  
    Input  
    Amp  
    MA  
    NR  
    circuit  
    VRI  
    Elect-  
    rical  
    VR  
    MPX OFF  
    – 3 dB  
    47 mVrms  
    (–24.3 dBs)  
    The each level shown above is typical value when  
    offering Dolby level to test point pin (NR IN) with  
    the gain of electrical volume is under the condition  
    of max.  
    b) REC mode  
    PB - OUT  
    NR  
    IA  
    OUT  
    MPX  
    Filter  
    HA12155  
    lN  
    580 mVrms  
    (–2.5 dBs)  
    RPI PBI  
    HA12157  
    775 mVrms  
    (0 dBs)  
    30 mVrms  
    (–28.2 dBs)  
    30 mVrms  
    (–28.2 dBs)  
    300 mVrms  
    (–8.2 dBs)  
    Input  
    Amp  
    NR  
    circuit  
    MA  
    VRI  
    Elect-  
    rical  
    VR  
    33 mVrms  
    (–27.4 dBs)  
    NR circuit  
    The each level shown above is typical value when  
    offering Dolby level to test point pin (IA OUT) with  
    the gain of electrical volume is under the condition  
    of max.  
    a) PB mode  
    Figure 4 Input Block Diagram  
    Rev.4, Jun. 1997, page 18 of 57  
    HA12155NT/HA12157NT  
    MPX ON/OFF Switch  
    MPX-OFF mode means that signal from input amp doesn’t go through the MPX filter, but signal goes  
    through the SS circuit after being attenuated 3 dB by internal resistor. Refer to figure 5. For not cause any  
    level difference between MPX-ON mode and MPX-OFF mode, it is requested to use MPX-filter which has  
    definitely 3 dB attenuated. MPX-OFF mode offer totally flat frequency response and no bias-trap effect.  
    And when applying other usage except figure 5, take consideration to give bias voltage to NR-IN terminal  
    by resistor or so on because internal of NR-IN terminal hsa no bias resistor.  
    5.6 kΩ  
    MPX  
    2.4 kΩ  
    IA OUT  
    NR IN  
    VREF  
    Vref  
    +
    MPX ON  
    INPUT amp  
    –
    NR  
    PROCESSER  
    +
    MPX OFF  
    –
    3 dB ATT.  
    Vref  
    Figure 5 MPX ON/OFF Switch Block Diagram  
    Application as for the Dubbing Cassette Deck  
    HA12155NT/HA12157NT series has unprocessor signal from recording out terminals during plyaback  
    mode. So, it is simply applied for dubbing cassette decks.  
    And HA12155NT/HA12157NT has three input terminal. So, it is applicable to switch the signal from PB-  
    EQ as shown below.  
    Rev.4, Jun. 1997, page 19 of 57  
    HA12155NT/HA12157NT  
    A deck  
    PB EQ  
    B deck  
    PB EQ  
    Compensation  
    of low  
    frequency  
    region  
    REC  
    PB  
    RPI PBI  
    REC OUT  
    EQ IN  
    REC IN  
    VRI  
    HA12155 / 7  
    EQ OUT  
    PB OUT  
    Figure 6 Application for Dubbing Deck  
    Injector Current  
    HA12155NT/HA12157NT has logic circuit which is fabricated by I2L into IC. To operate this circuit, it is  
    required enough injector current. Injector current goes into from the INJ pin (pin 10) and external resistor  
    is required to connect to this pin for adequate current. The value of external resistor is obtained by using  
    following equations. And put them with ±10% tolerance value which is calculated. VINJ can allow to  
    connect to VCC shown below. Under the condition of high temperature, the mis-operation of logic is caused  
    by large injector current. Also, under the condition of low temperature, the stop of logic is caused by small  
    injector current. Therefore, pay attention to have good stability of VINJ.  
    VINJ – 0.7  
    RINJ  
    =
    =
    [kΩ] ---- Single supply  
    [kΩ] ---- Split supply  
    3.6  
    VINJ +VEE – 0.7  
    RINJ  
    3.6  
    RINJ  
    3.6 mA  
    VINJ  
    RINJ  
    10  
    10  
    HA12155 / 7  
    HA12155 / 7  
    3.6 mA  
    VINJ  
    40  
    61  
    40  
    61  
    VEE  
    a) Single supply use  
    b) Split supply use  
    Figure 7 Injector Current Application  
    Rev.4, Jun. 1997, page 20 of 57  
    HA12155NT/HA12157NT  
    Gain Control of Electronic Volume  
    HA12155NT/HA12157NT is designed in order to change the gain by 6 bit DAC fabricated into IC. To  
    reduce the click noise when changing volume gain instantaneously, required to connect the capacitor (CR  
    time constant) to CNT pin (pin 6,59). These terminals are also be used as output pin of DAC. Therefore,  
    by forcing voltage or current to these terminals, it is applicable to control volume gain directly. But,  
    voltage forced to these terminals must be from VCC/2 –2 V to VCC/2 (for split supply use, –2 V to 0 V) in this  
    case. In case of forcing the current these pins, voltage must be the value mentioned above even it is ±20%  
    distributed of internal resistor (5.2 kΩ) of CNT pin. And, these case, change of a gain depending on a  
    temperature gets large.  
    The Tolerances of External Components for Dolby NR-Block  
    For adequate Dolby NR tracking response, take external components shown below.  
    For smooth capacitors of C13, C14, C25 and C26, please employ a few object of the leak, though you can  
    be useful for an electrolytic capacitor.  
    C28  
    C29  
    2200 p  
    2200 p  
    ±
    ±
    5%  
    5%  
    R29  
    18 k  
    R24  
    22 k  
    R23  
    560  
    C27  
    C26  
    C25  
    ±
    2200 p 0.1 µ  
    0.1 µ  
    2%  
    ±
    2%  
    ±
    ±
    10%  
    ±
    10%  
    5%  
    ±
    2%  
    57  
    51  
    50  
    49  
    48  
    47  
    46  
    BIAS  
    PB OUT  
    (L)  
    SS1  
    (L)  
    SS2  
    (L)  
    CCR  
    (L)  
    HLS  
    DET(L) DET(L)  
    LLS  
    HA12155/7 (REC 1 Chip)  
    PB OUT  
    (R)  
    SS1  
    (R)  
    SS2  
    (R)  
    CCR  
    (R)  
    HLS  
    LLS  
    DET(R) DET(R)  
    14  
    15  
    16  
    17  
    18 19  
    R11  
    R13  
    560  
    C12  
    C13  
    C14  
    22 k  
    2200 p 0.1 µ  
    0.1µ  
    ±
    2%  
    ±
    2%  
    ±
    ±
    10%  
    ±
    10%  
    5%  
    C9  
    C10  
    2200 p  
    2200 p  
    Unit R :  
    Ω
    ±
    ±
    5%  
    5%  
    C : F  
    Figure 8 Tolerances of External Components  
    Level Meter  
    The coupling capacitor of LMIN pin (21 pin and 44 pin).  
    For these capacitors please employ a small object of the leak.  
    Rev.4, Jun. 1997, page 21 of 57  
    HA12155NT/HA12157NT  
    The Application of Equalizer Frequency Response  
    F / Q  
    EQ  
    IN  
    _
    _
    OP5  
    +
    GP  
    +
    +
    Gm2  
    +
    R6  
    +
    OP1  
    OP2  
    _
    _
    Gm1  
    C1  
    R7  
    _
    R1  
    R5  
    R3  
    R4  
    +
    R2  
    +
    Gm3  
    _
    OP6  
    _
    C2  
    R10  
    FM  
    EQ  
    OUT  
    GL  
    +
    _
    _
    +
    Gm4  
    OP3  
    _
    +
    _
    Gm5  
    R9  
    OP4  
    _
    +
    +
    OP7  
    C3  
    GH  
    _
    R8  
    Gm6  
    +
    Figure 9 REC Equalizer Block Diagram  
    Transfer Function:  
    C3 Gm6  
    C2  
    +
    1
    S
    S
    R 2 + R3  
    R8 R10  
    R4 R10  
    Vout  
    Vin  
    Gm4 Gm5  
    C3  
    Gm3  
    =
    =
    Gm5  
    + Gm1  
    R4  
    R4  
    C1 C2  
    R7  
    C2  
    R2  
    R9  
    R6 + R7  
    1+  
    S
    1+  
    S +  
    S2  
    Gm4  
    R5 R6 + R7 Gm3  
    R5 Gm2 Gm3  
    R FM RGH  
    1+ 6.67 ×10−  
    S
    10  
    −
    10  
    ×
    3.0 10  
    RFQ  
    S
    4.16  
    RGL  
    +
    RGL  
    RGP  
    1+ 6.67× 10−  
    R
    S
    1+ 4.5 ×10− RFQ S + 2.5× 10− R FQ RF/ QS2  
    10  
    11  
    20  
    R REF  
    FM  
    *RREF-----25 pin bias resistance  
    Rev.4, Jun. 1997, page 22 of 57  
    HA12155NT/HA12157NT  
    Gain  
    g1  
    3dB  
    BW  
    g2  
    g3  
    f1 f2  
    f3  
    f
    Figure 10 REC Equalizer Frequency Response  
    6.67 ×R + R  
    4.16  
    gl =  
    g2 =  
    g3 =  
    f1 =  
    (
    )
    GP  
    GH  
    R
    REF  
    4.16× R  
    GL  
    GH  
    R
    REF  
    4.16× R  
    R
    REF  
    1
    −
    10  
    2π ×6.67 ×10  
    × R  
    FM  
    FM  
    R
    GL  
    −10  
    f 2 =  
    f3 =  
    2π ×6.67 ×10  
    × R  
    × R  
    GH  
    1
    0.3  
    −21  
    2π  
    2.25 ×10  
    ×R ×R  
    FQ F / Q  
    1
    BW =  
    Q =  
    −10  
    4π ×2.78×10  
    × R  
    F / Q  
    R
    f3  
    F / Q  
    = 3.51×  
    BW  
    R
    F / Q  
    Rev.4, Jun. 1997, page 23 of 57  
    HA12155NT/HA12157NT  
    Quiescent Current vs. Supply Voltage  
    35  
    30  
    REC – C  
    REC – B  
    REC – OFF  
    PB – C  
    PB – B  
    REC : VRI in (DAC Step 0)  
    LM : Normal  
    PB : PBI in (DAC Step 0)  
    LM : Normal  
    PB – OFF  
    25  
    8
    10  
    12  
    14  
    16  
    18  
    Supply voltage Vcc (V)  
    Rev.4, Jun. 1997, page 24 of 57  
    HA12155NT/HA12157NT  
    Encode Boost vs. Frequency (HA12155)  
    12  
    10  
    8
    NR–B RPI in RECOUT out  
    : Vin = – 0 dB  
    : Vin = – 10 dB  
    : Vin = – 20 dB  
    : Vin = – 30 dB  
    : Vin = – 40 dB  
    16 V  
    14 V  
    6
    9 V  
    4
    2
    0
    100  
    200  
    500  
    1 k  
    2 k  
    5 k  
    10 k  
    20 k  
    50 k  
    100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 25 of 57  
    HA12155NT/HA12157NT  
    Encode Boost vs. Frequency (HA12155)  
    25  
    NR-C RPI in RECOUT out  
    20  
    15  
    10  
    5
    : Vin = 0 dB  
    : Vin = – 20 dB  
    : Vin = – 30 dB  
    : Vin = – 40 dB  
    : Vin = – 60 dB  
    16 V  
    14 V  
    9 V  
    0
    –5  
    –10  
    100  
    200  
    500  
    1 k  
    2 k  
    5 k  
    10 k  
    20 k  
    50 k  
    100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 26 of 57  
    HA12155NT/HA12157NT  
    Encode Boost vs. Frequency (HA12157)  
    12  
    10  
    8
    NR-B RPI in RECOUT out  
    : Vin = 0 dB  
    : Vin = – 10 dB  
    : Vin = – 20 dB  
    : Vin = – 30 dB  
    : Vin = – 40 dB  
    16 V  
    14 V  
    6
    11 V  
    4
    2
    0
    100  
    200  
    500  
    1 k  
    2 k  
    5 k  
    10 k  
    20 k  
    50 k  
    100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 27 of 57  
    HA12155NT/HA12157NT  
    Encode Boost vs. Frequency (HA12157)  
    25  
    NR-C RPI in RECOUT out  
    : Vin = – 0 dB  
    : Vin = – 20 dB  
    : Vin = – 30 dB  
    : Vin = – 40 dB  
    : Vin = – 60 dB  
    20  
    15  
    16 V  
    14 V  
    11 V  
    10  
    5
    0
    – 5  
    – 10  
    100  
    200  
    500  
    1 k  
    2 k  
    5 k  
    10 k  
    20 k  
    50 k  
    100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 28 of 57  
    HA12155NT/HA12157NT  
    Output Gain vs. Frequency (HA12155)  
    26  
    22  
    18  
    14  
    10  
    6
    PB OUT  
    REC OUT  
    (NR – OFF, RPI) Vcc = 14 V  
    REC mode  
    10  
    30  
    60 100  
    300  
    600 1 k  
    Frequency (Hz)  
    3 k  
    6 k 10 k  
    30 k 60 k 100 k  
    Rev.4, Jun. 1997, page 29 of 57  
    HA12155NT/HA12157NT  
    Output Gain vs. Frequency (HA12155)  
    PB OUT  
    28  
    24  
    20  
    16  
    12  
    8
    REC OUT  
    PB mode (NR – OFF, RPI) Vcc = 14 V  
    10  
    30  
    60 100  
    300 600 1 k  
    3 k  
    6 k 10 k  
    30 k 60 k 100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 30 of 57  
    HA12155NT/HA12157NT  
    Output Gain vs. Frequency (HA12157)  
    28  
    24  
    20  
    16  
    12  
    8
    PB OUT  
    REC OUT  
    (NR – OFF, RPI) Vcc = 14 V  
    REC mode  
    10  
    30  
    60 100  
    300 600 1 k  
    3 k  
    6 k 10 k  
    30 k 60 k 100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 31 of 57  
    HA12155NT/HA12157NT  
    Output Gain vs. Frequency (HA12157)  
    30  
    26  
    22  
    18  
    14  
    10  
    PB OUT  
    REC OUT  
    PB mode (NR – OFF, PBI) Vcc = 14 V  
    10  
    30  
    60 100  
    300 600 1 k  
    Frequency (Hz)  
    3 k  
    6 k 10 k  
    30 k 60 k 100 k  
    Rev.4, Jun. 1997, page 32 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. Output Level (HA12155)  
    10  
    RPI in RECOUT out REC mode  
    f = 100 Hz  
    VCC = 14 V  
    0 dB = 300 mVrms  
    3.0  
    1.0  
    NR-C  
    0.3  
    0.1  
    NR-B  
    0.03  
    0.01  
    NR-OFF  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Total Harmonic Distortion vs. Output Level (HA12155)  
    10  
    RPI in RECOUT out REC mode  
    f = 1 kHz  
    VCC = 14 V  
    0 dB = 300 mVrms  
    3.0  
    1.0  
    NR-C  
    NR-B  
    0.3  
    0.1  
    0.03  
    0.01  
    NR-OFF  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Rev.4, Jun. 1997, page 33 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. Output Level (HA12155)  
    10  
    3.0  
    1.0  
    RPI in RECOUT out REC mode  
    f = 10 kHz  
    VCC = 14 V  
    0 dB = 300 mVrms  
    0.3  
    0.1  
    NR-C  
    NR-B  
    0.03  
    0.01  
    NR-OFF  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Total Harmonic Distortion vs. Output Level (HA12155)  
    10  
    PBI in PBOUT out PB mode  
    f = 100 Hz  
    VCC = 14 V  
    0 dB = 580 mVrms  
    3.0  
    1.0  
    NR-C  
    0.3  
    0.1  
    NR-OFF  
    0.03  
    0.01  
    NR-B  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Rev.4, Jun. 1997, page 34 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. Output Level (HA12155)  
    10  
    3.0  
    1.0  
    PBI in PBOUT out PB mode  
    f = 1 kHz  
    VCC = 14 V  
    0 dB = 580 mVrms  
    0.3  
    0.1  
    NR-C  
    NR-OFF  
    0.03  
    0.01  
    NR-B  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Total Harmonic Distortion vs. Output Level (HA12155)  
    10  
    PBI in PBOUT out PB mode  
    f = 10 kHz  
    VCC = 14 V  
    0 dB = 580 mVrms  
    3.0  
    1.0  
    0.3  
    NR-C  
    0.1  
    NR-OFF  
    0.03  
    NR-B  
    0.01  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Rev.4, Jun. 1997, page 35 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. Output Level (HA12157)  
    10  
    3.0  
    1.0  
    RPI in RECOUT out REC mode  
    f = 100 Hz  
    VCC = 14 V  
    NR-C  
    0.3  
    0.1  
    NR-B  
    0.03  
    0.01  
    NR-OFF  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Total Harmonic Distortion vs. Output Level (HA12157)  
    10  
    RPI in RECOUT out REC mode  
    f = 1 kHz  
    VCC = 14 V  
    3.0  
    1.0  
    0.3  
    NR-C  
    0.1  
    0.03  
    NR-B  
    NR-OFF  
    0.01  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Rev.4, Jun. 1997, page 36 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. Output Level (HA12157)  
    10  
    3.0  
    1.0  
    RPI in RECOUT out REC mode  
    f = 10 kHz  
    VCC = 14 V  
    0.3  
    0.1  
    NR-C  
    NR-B  
    0.03  
    0.01  
    NR-OFF  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Total Harmonic Distortion vs. Output Level (HA12157)  
    10  
    RBI in RBOUT out PB mode  
    f = 100 Hz  
    VCC = 14 V  
    3.0  
    1.0  
    NR-C  
    0.3  
    0.1  
    NR-OFF  
    0.03  
    0.01  
    NR-B  
    –5  
    Output level Vout (dB)  
    –15 –10  
    0
    5
    10  
    15  
    Rev.4, Jun. 1997, page 37 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. Output Level (HA12157)  
    10  
    3.0  
    1.0  
    PBI in PBOUT out REC mode  
    f = 10 kHz  
    VCC = 14 V  
    0.3  
    0.1  
    NR-C  
    NR-OFF  
    NR-B  
    0.03  
    0.01  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Total Harmonic Distortion vs. Output Level (HA12157)  
    10  
    PBI in PBOUT out PB mode  
    f = 10 kHz  
    VCC = 14 V  
    3.0  
    1.0  
    NR-C  
    0.3  
    0.1  
    NR-OFF  
    0.03  
    0.01  
    NR-B  
    –15 –10  
    –5  
    0
    5
    10  
    15  
    Output level Vout (dB)  
    Rev.4, Jun. 1997, page 38 of 57  
    HA12155NT/HA12157NT  
    Max. Output Level vs. Supply Voltage (HA12155)  
    20  
    15  
    10  
    5
    OFF  
    B
    C
    T.H.D. = 1%  
    0 dB = 300 mVrms  
    f = 1 kHz REC mode RPI in RECOUT out  
    0
    8
    9
    10 11 12 13 14 15 16  
    Supply voltage VCC (V)  
    Max. Output Level vs. Supply Voltage (HA12155)  
    20  
    15  
    10  
    5
    T.H.D. = 1%  
    0 dB = 580 mVrms  
    f = 1 kHz PB mode PBI in PBOUT out  
    0
    8
    9
    10 11 12 13 14 15 16  
    Supply voltage VCC (V)  
    Rev.4, Jun. 1997, page 39 of 57  
    HA12155NT/HA12157NT  
    Max. Output Level vs. Supply Voltage (HA12157)  
    20  
    15  
    10  
    5
    OFF  
    B
    C
    T.H.D. = 1%  
    0 dB = 300 mVrms  
    f = 1 kHz REC mode  
    RPI in RECOUT out  
    0
    9
    10  
    11 12 13 15 16  
    Supply voltage VCC(V)  
    Max. Output Level vs. Supply Voltage (HA12157)  
    20  
    15  
    10  
    OFF  
    B
    C
    5
    T.H.D. = 1%  
    0 dB = 775 mVrms  
    f = 1 kHz PB mode  
    PBI in PBOUT out  
    0
    10 11  
    12 13 14 15 16  
    Supply voltage VCC (V)  
    Rev.4, Jun. 1997, page 40 of 57  
    HA12155NT/HA12157NT  
    Signal-to-Noise Ratio vs. Supply Voltage (HA12155)  
    PB-C  
    90  
    80  
    70  
    60  
    50  
    PB-B  
    REC-OFF RPI  
    REC-OFF VRI  
    PB-OFF  
    REC-B RPI  
    REC-B VRI  
    REC-C RPI  
    REC-C VRI  
    E Vol : DAC Step No.18  
    Vin = 100 mVrms  
    CCIR/ARM  
    9
    10 11 12 13 14  
    Supply voltage Vcc (V)  
    15  
    16  
    Rev.4, Jun. 1997, page 41 of 57  
    HA12155NT/HA12157NT  
    Signal-to-Noise Ratio vs. Supply Voltage (HA12157)  
    PB-C  
    90  
    80  
    70  
    60  
    50  
    PB-B  
    REC-OFF RPI  
    REC-OFF VRI  
    RB-OFF  
    PB-B RPI  
    REC-B VRI  
    REC-C RPI  
    REC-C VRI  
    VRI : DAC Step No.18  
    Vin = 100 mVrms  
    CCIR/ARM  
    10 11 12 13 14  
    15  
    16  
    Supply voltage VCC (V)  
    Crosstalk vs. Frequency (R L)  
    –20  
    –40  
    REC mode RPI in RECOUT out  
    Vin = +6 dB  
    VCC = 14 V  
    –60  
    C
    B
    –80  
    –100  
    OFF  
    –120  
    10  
    100  
    1 k  
    Frequency (Hz)  
    10 k  
    100 k  
    Rev.4, Jun. 1997, page 42 of 57  
    HA12155NT/HA12157NT  
    Crosstalk vs. Frequency (R L)  
    –20  
    –40  
    PB mode RPI in PBOUT out  
    Vin = +6 dB  
    V= 14 V  
    –60  
    C
    –80  
    OFF  
    –100  
    B
    –120  
    10  
    100  
    1 k  
    10 k  
    100 k  
    Frequency (Hz)  
    Crosstalk vs. Frequency  
    0
    –20  
    VCC = 14 V  
    –40  
    RPI PBI  
    –60  
    –80  
    RPI VRI  
    –100  
    10  
    30 60 100  
    300 600 1 k  
    3 k 6 k 10 k  
    30 k 60 k 100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 43 of 57  
    HA12155NT/HA12157NT  
    Crosstalk vs. Frequency  
    0
    –20  
    VCC = 14 V  
    –40  
    –60  
    PBI RPI  
    –80  
    PBI VRI  
    –100  
    10  
    30 60 100  
    300 600 1 k  
    3 k 6 k 10 k  
    30 k 60 k 100 k  
    Frequency (Hz)  
    Crosstalk vs. Frequency  
    0
    VCC = 14 V  
    –20  
    –40  
    –60  
    VRI RPI  
    –80  
    VRI PBI  
    –100  
    10  
    30 60 100  
    300 600 1 k  
    3 k 6 k 10 k  
    30 k 60 k 100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 44 of 57  
    HA12155NT/HA12157NT  
    Ripple Rejection Ratio vs. Frequency (REC mode)  
    0
    –10  
    –20  
    –30  
    VCC = 14 V RECOUT out  
    C
    B
    –40  
    –50  
    OFF  
    10  
    50 100  
    500 1 k  
    Frequency (Hz)  
    5 k 10 k  
    50 k 100 k  
    Ripple Rejection Ratio vs. Frequency (PB mode)  
    –10  
    –20  
    –30  
    –40  
    OFF  
    B
    C
    –50  
    –60  
    VCC = 14 V PBOUT out  
    5 k 10 k 50 k 100 k  
    10  
    50 100  
    500 1 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 45 of 57  
    HA12155NT/HA12157NT  
    Gain, S/N and Vomax vs. DAC Step  
    Gv.Vin  
    –25  
    20  
    100  
    90  
    80  
    70  
    60  
    –20  
    –15  
    –10  
    –5  
    0
    10  
    S/N  
    (JIS A filter)  
    0
    20  
    16  
    12  
    Vo max  
    5
    –10  
    –20  
    8
    4
    10  
    VCC = 14 V f = 1 kHz  
    VRI in IAOUT out  
    0
    2
    15  
    0
    10  
    20  
    30  
    40  
    DAC Step No.  
    Rev.4, Jun. 1997, page 46 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. DAC Step  
    10  
    0 dB = –5.2 dBs  
    Vcc = 14 V  
    f = 100 Hz  
    3.0  
    1.0  
    IAOUT output level = const  
    +10 dB  
    0 dB  
    –10 dB  
    0.3  
    0.1  
    0.03  
    0.01  
    0
    10  
    20  
    30  
    40  
    50  
    DAC Step  
    Total Harmonic Distortion vs. DAC Step  
    10  
    0 dB = –5.2 dBs  
    Vcc = 14 V  
    f = 1 kHz  
    3.0  
    1.0  
    IAOUT output level = const  
    + 10 dB  
    0 dB  
    – 10 dB  
    0.3  
    0.1  
    0.03  
    0.01  
    0
    10  
    20  
    30  
    40  
    50  
    DAC Step  
    Rev.4, Jun. 1997, page 47 of 57  
    HA12155NT/HA12157NT  
    Total Harmonic Distortion vs. DAC Step  
    10  
    0 dB = –5.2 dBs  
    Vcc = 14 V  
    f = 10 kHz  
    3.0  
    1.0  
    IAOUT output level = const  
    + 10 dB  
    0 dB  
    – 10 dB  
    0.3  
    0.1  
    0.03  
    0.01  
    0
    10  
    20  
    30  
    40  
    50  
    DAC Step  
    E. Vol Max. Input Level vs. Supply Voltage  
    16  
    14  
    12  
    10  
    8
    6
    4
    2
    0
    f = 1 kHz  
    IAOUT out DAC Step No.= 42  
    8
    10  
    12  
    14  
    16  
    18  
    Supply voltage VCC (V)  
    Rev.4, Jun. 1997, page 48 of 57  
    HA12155NT/HA12157NT  
    Electronic Volume Gain vs. Frequency  
    VRI in IAOUT out VCC = 14 V V in = –12 dBs  
    30  
    20  
    10  
    0
    DAC Step0  
    DAC Step20  
    DAC Step29  
    DAC Step36  
    DAC Step42  
    DAC Step47  
    DAC Step51  
    –10  
    –20  
    –30  
    –40  
    DAC Step56  
    DAC Step62  
    –50  
    –60  
    –70  
    10  
    100  
    1 k  
    10 k  
    100 k  
    Frequency (Hz)  
    Level Meter Output vs. Input Level (HA12155)  
    4.0  
    3.0  
    –20 dB Range  
    2.0  
    0 dB Range  
    1.0  
    0 dB = 580 mVrms  
    VCC = 14 V  
    f = 1 kHz  
    0
    –80 –60 –40 –20  
    0
    20 40  
    Input level Vin (dB)  
    Rev.4, Jun. 1997, page 49 of 57  
    HA12155NT/HA12157NT  
    Level Meter Output vs. Input Level (HA12157)  
    4.0  
    3.0  
    2.0  
    1.0  
    0
    –20 dB Range  
    0 dB Range  
    0 dB = 775 mVrms  
    VCC = 14 V  
    f = 1 kHz  
    –80 –60 –40 –20  
    0
    20 40  
    Input level Vin (dB)  
    Level Meter Output vs. Frequency  
    3.2  
    3.0  
    2.8  
    2.6  
    2.4  
    2.2  
    2.0  
    VCC = 14 V  
    0 dB Range  
    Vin = 0 dB  
    –20 dB Range Vin = –20 dB  
    20 30  
    100  
    300  
    1 k  
    3 k  
    10 k  
    30 k  
    100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 50 of 57  
    HA12155NT/HA12157NT  
    Level Meter Output vs. Supply Voltage  
    4.0  
    3.0  
    2.0  
    1.0  
    0
    0 dB Range Vin = 12 dB  
    0 dB Range Vin = 0 dB  
    –20 dB Range Vin = –20 dB  
    0 dB Range Vin = –20 dB  
    f = 1 kHz  
    8
    10 12 14 16 18  
    Supply voltage VCC (V)  
    Equalizer Gain vs. Frequency  
    40  
    25  
    10  
    (6)  
    (4)  
    (5)  
    (3)  
    (5)  
    (1) (2) (3) (4)  
    (6)  
    NN HN NC HC NM HM  
    33 k 33 k 33 k 33 k 47 k 47 k  
    33 k 33 k 51 k 51 k 51 k 51 k  
    RGP  
    RGL  
    RGH  
    RF/Q  
    RFQ  
    RFM  
    33 k  
    33 k 51 k 51 k 51 k 51 k  
    51 k 20 k 51 k 20 k 51 k 20 k  
    27 k 51 k 27 k 51 k 27 k  
    51 k  
    100 k100 k100 k100 k100 k100 k  
    VCC = 14 V Vin = –20 dBs  
    (1)  
    (2)  
    10  
    300  
    1 k  
    3 k  
    10 k  
    30 k  
    100 k  
    Frequency (Hz)  
    Rev.4, Jun. 1997, page 51 of 57  
    HA12155NT/HA12157NT  
    Equalizer Total Harmonic Distortion vs. Output Level  
    30  
    10  
    VCC = 14 V  
    : 15 kHz  
    : 10 kHz  
    : 6.3 kHz  
    : 3.15 kHz  
    : 1 kHz  
    0 dB = –5 dBs  
    Rload = 10 kΩ  
    RGL = 33 kΩ  
    RGH = 33 kΩ  
    RFM = 100 kΩ  
    RGP = 33 kΩ  
    RF/Q = 51 kΩ  
    RFQ = 51 kΩ  
    : 315 Hz  
    3.0  
    1.0  
    0.3  
    0.1  
    –10  
    –5  
    0
    5
    10  
    15  
    20  
    Output level Vout (dB)  
    Equalizer Amplifier Gain (GL) vs. RGL  
    35  
    30  
    25  
    20  
    15  
    10  
    5
    VCC= 14V  
    RGH = RGP = 33 kΩ  
    RFQ = RF/Q = 51 kΩ  
    RFM = 100 kΩ  
    f = 315 Hz  
    f = 1 kHz  
    at RGL = 33 k Ω  
    V out = Ð5 dBs  
    300 k  
    5k 10 k  
    30 k  
    100 k  
    RGL (Ω)  
    1 M  
    Rev.4, Jun. 1997, page 52 of 57  
    HA12155NT/HA12157NT  
    Equalizer Amplifier Gain (GH) vs. RGH  
    35  
    30  
    25  
    20  
    15  
    10  
    5
    VCC = 14 V  
    RGL = 33 kΩ  
    RGP = 16 kΩ  
    RFQ = RF/Q = 24 kΩ  
    RFM = 390 kΩ  
    f = 6.3 kHz  
    at RGH = 33 kΩ  
    Vout = Ð5 dBs  
    300 k  
    5k 10 k  
    30 k  
    100 k  
    RGH ( )  
    1 M  
    Ω
    Equalizer Amplifier Gain (GP) vs. RGP  
    VCC = 14 V  
    50  
    45  
    40  
    35  
    30  
    25  
    20  
    Ω
    RGH = RGP = 33 k  
    RFQ = RF/Q = 51 k Ω  
    RFM = 100 kΩ  
    f = 19 kHz  
    300 k  
    5k 10 k  
    30 k  
    100 k  
    RGP (Ω)  
    1 M  
    Rev.4, Jun. 1997, page 53 of 57  
    HA12155NT/HA12157NT  
    Equalizer Cut off Frequency (FM) vs. RFM  
    100 k  
    30 k  
    10 k  
    VCC = 14 V  
    RGL = 120 kΩ  
    RGH = 7.5 kΩ  
    RFQ = RF/Q = 24 kΩ  
    RGP = 16 kΩ  
    3 k  
    1 k  
    300  
    5 k 10 k  
    30 k  
    100 k  
    RFM (Ω)  
    300 k  
    1 M  
    Equalizer Peak Frequency vs. RFQ  
    300 k  
    100 k  
    30 k  
    10 k  
    RF/Q  
    =
    12 k Ω  
    24 k Ω  
    51 k Ω  
    100 k Ω  
    200 k Ω  
    390 k Ω  
    3 k  
    2 k  
    5 k 10 k  
    30 k  
    100 k  
    RFQ (Ω)  
    300 k  
    1 M  
    Rev.4, Jun. 1997, page 54 of 57  
    HA12155NT/HA12157NT  
    Equalizer Q vs. RFQ  
    15  
    10  
    5
    0
    RF/Q  
    =
    390 kΩ  
    200 kΩ  
    100 kΩ  
    51 kΩ  
    24 kΩ  
    12 kΩ  
    5 k 10 k  
    30 k  
    100 k  
    RFQ ( )  
    300 k  
    1 M  
    Ω
    Rev.4, Jun. 1997, page 55 of 57  
    HA12155NT/HA12157NT  
    Package Dimensions  
    Unit: mm  
    57.6  
    58.5 Max  
    64  
    33  
    32  
    1
    1.0  
    19.05  
    1.46 Max  
    + 0.11  
    – 0.05  
    0.25  
    1.78 ± 0.25  
    0.48 ± 0.10  
    0˚ – 15˚  
    Hitachi Code  
    JEDEC Code  
    EIAJ Code  
    Weight  
    DP-64S  
    —
    SC-553-64A  
    8.8 g  
    Rev.4, Jun. 1997, page 56 of 57  
    HA12155NT/HA12157NT  
    Disclaimer  
    1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,  
    copyright, trademark, or other intellectual property rights for information contained in this document.  
    Hitachi bears no responsibility for problems that may arise with third party’s rights, including  
    intellectual property rights, in connection with use of the information contained in this document.  
    2. Products and product specifications may be subject to change without notice. Confirm that you have  
    received the latest product standards or specifications before final design, purchase or use.  
    3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,  
    contact Hitachi’s sales office before using the product in an application that demands especially high  
    quality and reliability or where its failure or malfunction may directly threaten human life or cause risk  
    of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,  
    traffic, safety equipment or medical equipment for life support.  
    4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly  
    for maximum rating, operating supply voltage range, heat radiation characteristics, installation  
    conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used  
    beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable  
    failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-  
    safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other  
    consequential damage due to operation of the Hitachi product.  
    5. This product is not designed to be radiation resistant.  
    6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without  
    written approval from Hitachi.  
    7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor  
    products.  
    Sales Offices  
    Hitachi, Ltd.  
    Semiconductor & Integrated Circuits.  
    Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan  
    Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109  
    URL  
    NorthAmerica  
    Europe  
    Asia  
    : http://semiconductor.hitachi.com/  
    : http://www.hitachi-eu.com/hel/ecg  
    : http://sicapac.hitachi-asia.com  
    Japan  
    : http://www.hitachi.co.jp/Sicd/indx.htm  
    For further information write to:  
    Hitachi Asia (Hong Kong) Ltd.  
    Group III (Electronic Components)  
    7/F., North Tower,  
    Hitachi Semiconductor  
    (America) Inc.  
    179 East Tasman Drive,  
    San Jose,CA 95134  
    Tel: <1> (408) 433-1990  
    Fax: <1>(408) 433-0223  
    Hitachi Europe GmbH  
    Hitachi Asia Ltd.  
    Hitachi Tower  
    16 Collyer Quay #20-00,  
    Singapore 049318  
    Tel : <65>-538-6533/538-8577  
    Fax : <65>-538-6933/538-3877  
    URL : http://www.hitachi.com.sg  
    Electronic Components Group  
    Dornacher Straße 3  
    World Finance Centre,  
    D-85622 Feldkirchen, Munich  
    Germany  
    Harbour City, Canton Road  
    Tsim Sha Tsui, Kowloon,  
    Hong Kong  
    Tel: <49> (89) 9 9180-0  
    Fax: <49> (89) 9 29 30 00  
    Tel : <852>-(2)-735-9218  
    Fax : <852>-(2)-730-0281  
    URL : http://www.hitachi.com.hk  
    Hitachi Asia Ltd.  
    (Taipei Branch Office)  
    4/F, No. 167, Tun Hwa North Road,  
    Hung-Kuo Building,  
    Taipei (105), Taiwan  
    Hitachi Europe Ltd.  
    Electronic Components Group.  
    Whitebrook Park  
    Lower Cookham Road  
    Maidenhead  
    Tel : <886>-(2)-2718-3666  
    Fax : <886>-(2)-2718-8180  
    Telex : 23222 HAS-TP  
    URL : http://www.hitachi.com.tw  
    Berkshire SL6 8YA, United Kingdom  
    Tel: <44> (1628) 585000  
    Fax: <44> (1628) 585160  
    Copyright Hitachi, Ltd., 2000. All rights reserved. Printed in Japan.  
    Colophon 2.0  
    Rev.4, Jun. 1997, page 57 of 57  
    配单直通车
    HA12155NT产品参数
    型号:HA12155NT
    生命周期：Transferred
    零件包装代码：DIP
    包装说明：DP-64S
    针数：64
    Reach Compliance Code：compliant
    风险等级：5.09
    商用集成电路类型：DOLBY NOISE REDUCTION IC
    JESD-30 代码：R-PDIP-T64
    长度：57.6 mm
    端子数量：64
    封装主体材料：PLASTIC/EPOXY
    封装代码：SDIP
    封装形状：RECTANGULAR
    封装形式：IN-LINE, SHRINK PITCH
    认证状态：Not Qualified
    座面最大高度：5.08 mm
    表面贴装：NO
    端子形式：THROUGH-HOLE
    端子节距：1.778 mm
    端子位置：DUAL
    宽度：19.05 mm
    Base Number Matches：1
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