ASAHI KASEI
[AK4569]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=HVDD=3.0V, AVSS =DVSS=HVSS=0V; fs=44.1kHz; BOOST OFF; Signal Frequency
=1kHz; Measurement band width=20Hz
∼
20kHz; unless otherwise specified)
Parameter
min
Typ
max
Units
20
bit
ADC Resolution
IPGA Characteristics:
(AINL1, AINR1 pins) (LINE IN)
Input Voltage
1.35
1.5
1.65
Vpp
Input Resistance
25
50
75
kΩ
Step Size
0.1
0.5
0.9
dB
Gain Control Range
+20
dB
−31
IPGA Characteristics:
(AINL2, AINR2 pins) (MIC IN)
Input Voltage
1.35
1.5
1.65
Vpp
Input Resistance
6
12.5
19
kΩ
Step Size
0.1
0.5
0.9
dB
Gain Control Range
+32
dB
−19
(Note 6)
ADC Characteristics:
74
84
dB
S/(N+D)
(−1dB Input)
82
89
dB
D-Range
(−60dB Input, A-weighted))
S/N
(A-weighted)
82
89
dB
Interchannel Isolation
80
100
dB
Interchannel Gain Mismatch
0.2
0.5
dB
Power Supply Rejection
(Note 11)
-
50
-
dB
20
bit
DAC Resolution
Headphone-Amp:
(HPL/HPR pins) (Note 7) Load impedance is a serial connection with R
L
=22.8Ω and C
L
=100µF.
S/(N+D)
(0dBFS Output)
50
70
dB
82
90
dB
D-Range
(−60dBFS Output, A-weighted)
S/N
(A-weighted)
82
90
dB
Interchannel Isolation
70
90
dB
Interchannel Gain Mismatch
0.2
0.5
dB
Load Resistance
(Note 8)
20
Ω
Load Capacitance (C1 in Figure 2)
30
pF
(C2 in Figure 2)
(Note 9)
300
pF
Output Voltage
1.35
1.5
1.65
Vpp
Power Supply Rejection
(Note 11)
-
50
-
dB
(Note 10)
Mono Output:
(MOUT pin)
S/(N+D)
(0dBFS Output)
70
84
dB
S/N
(A-weighted)
82
90
dB
Load Resistance
(Note 8)
10
kΩ
Load Capacitance
30
pF
Output Voltage
1.35
1.5
1.65
Vpp
Power Supply Rejection
(Note 11)
-
50
-
dB
Output Volume:
(MOUT pin)
Step Size
1
2
3
dB
Gain Control Range
0
dB
−30
Note 6. The signal inputs are AINL1/AINR1 or AINL2/AINR2. The value of the IPGA is set to 0dB. On-chip HPF
cancels the IPGA and ADC offsets.
Note 7. DACL=DACR= “1”, MINL=MINR=LIN=RIN= “0”, and ATTL=ATTR=0dB.
Note 8. AC Load
Note 9. A resistor greater than 6.8Ω is inserted in series.
Note 10. DACM= “1”, LINM=RINM=MINM= “0”, ATTL=ATTR=ATTM=0dB, and common mode signal is input to
L/Rch of DAC.
Note 11. PSR is applied to AVDD, DVDD and HVDD with 1kHz, 50mVpp.
MS0292-E-01
-6-
2005/07
AKM [ ASAHI KASEI MICROSYSTEMS ]
