AD1881A–SPECIFICATIONS
STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED
Temperature
Digital Supply (V
DD
)
Analog Supply (V
CC
)
Sample Rate (F
S
)
Input Signal
25
3.3
5.0
48
1008
°C
V
V
kHz
Hz
DAC Test Conditions
Calibrated
–3 dB Attenuation Relative to Full-Scale
Input 0 dB
10 kΩ Output Load
ADC Test Conditions
Calibrated
0 dB Gain
Input –3.0 dB Relative to Full-Scale
ANALOG INPUT
Parameter
Input Voltage (RMS Values Assume Sine Wave Input)
LINE_IN, AUX, CD, VIDEO, PHONE_IN, PC_BEEP
MIC with +20 dB Gain (M20 = 1)
MIC with 0 dB Gain (M20 = 0)
Input Impedance*
Input Capacitance*
MASTER VOLUME
Min
Typ
1
2.83
0.1
0.283
1
2.83
20
5
Max
Unit
V rms
V p-p
V rms
V p-p
V rms
V p-p
kΩ
pF
7.5
Parameter
Step Size (0 dB to –94.5 dB); LINE_OUT_L, LINE_OUT_R
Output Attenuation Range Span*
Step Size (0 dB to –46.5 dB); MONO_OUT
Output Attenuation Range Span*
Mute Attenuation of 0 dB Fundamental*
PROGRAMMABLE GAIN AMPLIFIER—ADC
Min
Typ
1.5
–94.5
1.5
–46.5
Max
Unit
dB
dB
dB
dB
dB
80
Parameter
Step Size (0 dB to 22.5 dB)
PGA Gain Range Span
ANALOG MIXER—INPUT GAIN/AMPLIFIERS/ATTENUATORS
Min
Typ
1.5
22.5
Max
Unit
dB
dB
Parameter
Signal-to-Noise Ratio (SNR)
CD to LINE_OUT
Other to LINE_OUT
Step Size (+12 dB to –34.5 dB): (All Steps Tested)
MIC, LINE_IN, AUX, CD, VIDEO, PHONE_IN, DAC
Input Gain/Attenuation Range: MIC, LINE, AUX, CD, VIDEO, PHONE_IN, DAC
Step Size (0 dB to –45 dB): (All Steps Tested) PC_BEEP
Input Gain/Attenuation Range: PC_BEEP
*Guaranteed,
not tested.
Specifications subject to change without notice.
Min
Typ
90
90
1.5
–46.5
3.0
–45
Max
Unit
dB
dB
dB
dB
dB
dB
–2–
REV. 0
AD [ ANALOG DEVICES ]
