ad1884 Analog Devices, Inc., ad1884 Datasheet - Page 6

• Manufacturer Part Number: ad1884
• Description: High Definition Audio Soundmax Codec
• Manufacturer: Analog Devices, Inc.

AD1884
1
2
3
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/
Parameter
MICROPHONE BIAS
GPIO 0
GPIO 1 and 2
POWER SUPPLY
Guaranteed but not tested.
Measurements reflect main ADC.
RMS values assume sine wave input.
MIC_BIAS-B, MIC_BIAS-C
Output Drive Current
Analog (AV
Digital (DV
Digital I/O (DV
Power Supply Rejection (reference to f
MIC_BIAS_IN (Pin 33) = +5 V
MIC_BIAS_IN (Pin 33) = +3.3 V
MIC_BIAS-E (When enabled as BIAS)
Input Signal High (V
Input Signal Low (V
Output Signal High (V
Output Signal Low (V
Input Leakage Current (Signal High) (I
Input Leakage Current (Signal Low) (I
Input Signal High (V
Input Signal Low (V
Output Signal High (V
Output Signal Low (V
Input Leakage Current (Signal High) (I
Input Leakage Current (Signal Low) (I
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
MIC_BIAS_IN (Pin 33) = +5 V or +3.3 V
DD
DD
) 3.3 V 10%
) 3.3 V 5%
IO
) 3.3 V 10%
IL
IL
IH
IH
)
)
OL
OL
)
)
OH
OH
)
)
)
)
S
IL
IL
IH
IH
100 mV p-p Signal @ 1 kHz)
)
)
)
)
V
V
V
V
V
V
V
V
V
I
I
I
I
V
V
V
V
OUT
OUT
OUT
OUT
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
Rev. 0 | Page 6 of 16 | January 2007
= –500 A
= +1500 A
= –500 A
= +1500 A
Setting = Hi-Z
Setting = 0 V
Setting = 50%
Setting = 80%
Setting = 100%
Setting = 80%
Setting = 100%
Setting = Hi-Z
Setting = 0 V
Setting = 50%
Setting = 80%
Setting = 100%
Setting = 50%, 80%, or 100%
1
Min
DV
0
DV
0
AV
0
AV
0
3.13
2.97
2.97
DD
DD
IO
IO
0.60
0.72
0.60
0.72
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
–150
–50
–150
–50
3.30
99
31
3.30
162
58
3.30
3.96
1.2
80
Max
DV
DV
AV
AV
AV
AV
3.46
3.63
3.63
DV
DV
DD
DD
DD
DD
IO
IO
IO
IO
0.24
0.10
0.24
0.10
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
V
V
V
V
nA
V
V
V
V
nA
V
mW
mA
V
mW
mA
V
mW
mA
dB
A
A