AD1884 Datasheet, PDF (6/16 Pages) Analog Devices – High Definition Audio SoundMAX Codec

AD1884
Parameter
MICROPHONE BIAS
MIC_BIAS-B, MIC_BIAS-C
MIC_BIAS_IN (Pin 33) = +5 V or +3.3 V
MIC_BIAS_IN (Pin 33) = +5 V
MIC_BIAS_IN (Pin 33) = +3.3 V
V_REF Setting = Hi-Z
V_REF Setting = 0 V
V_REF Setting = 50%
V_REF Setting = 80%
V_REF Setting = 100%
V_REF Setting = 80%
V_REF Setting = 100%
MIC_BIAS-E (When enabled as BIAS)
V_REF Setting = Hi-Z
V_REF Setting = 0 V
V_REF Setting = 50%
V_REF Setting = 80%
V_REF Setting = 100%
Output Drive Current
GPIO 0
V_REF Setting = 50%, 80%, or 100%
Input Signal High (V_IH)
Input Signal Low (V_IL)
Output Signal High (V_OH)
Output Signal Low (V_OL)
Input Leakage Current (Signal High) (I_IH)
Input Leakage Current (Signal Low) (I_IL)
GPIO 1 and 2
I_OUT = –500 μA
I_OUT = +1500 μA
Input Signal High (V_IH)
Input Signal Low (V_IL)
Output Signal High (V_OH)
Output Signal Low (V_OL)
Input Leakage Current (Signal High) (I_IH)
Input Leakage Current (Signal Low) (I_IL)
POWER SUPPLY
I_OUT = –500 μA
I_OUT = +1500 μA
Analog (AV_DD) 3.3 V ±5%
Power Supply Range
Power Dissipation
Supply Current
Digital (DV_DD) 3.3 V ±10%
Power Supply Range
Power Dissipation
Supply Current
Digital I/O (DV_IO) 3.3 V ±10%
Power Supply Range
Power Dissipation
Supply Current
Power Supply Rejection (reference to f_S 100 mV p-p Signal @ 1 kHz)¹
1 _{Guaranteed but not tested.}
2 _{Measurements reflect main ADC.}
3 _{RMS values assume sine wave input.}
HD–AUDIO LINK SPECIFICATION
High-definition audio signals comply with the High-definition
Audio specification. Please refer to these specifications at:
http://www.intel.com/standards/hdaudio/
Min
Typ
Hi-Z
0
1.65
3.7
3.9
2.86
3.0
Hi-Z
0
1.65
2.86
3.0
1.6
DV_IO × 0.60
0
DV_IO × 0.72
0
–150
–50
AV_DD × 0.60
0
AV_DD × 0.72
0
–150
–50
3.13
3.30
99
31
2.97
3.30
162
58
2.97
3.30
3.96
1.2
80
Max
Unit
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
mA
DV_IO
V
DV_IO × 0.24 V
DV_IO
V
DV_IO × 0.10 V
nA
μA
AV_DD
V
AV_DD × 0.24 V
AV_DD
V
AV_DD × 0.10 V
nA
μA
3.46
V
mW
mA
3.63
V
mW
mA
3.63
V
mW
mA
dB
Rev. 0 | Page 6 of 16 | January 2007