AD1882 Analog Devices, AD1882 Datasheet - Page 6

• Manufacturer Part Number: AD1882
• Description: High Definition Audio SoundMAX Codec
• Manufacturer: Analog Devices

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AD1882
Table 4. AD1882 General Specifications (Continued)
1
2
3
HD-AUDIO LINK SPECIFICATIONS
HD-Audio signals comply with the High Definition Audio spec-
ifications. Please refer to these specifications at:
http://www.intel.com/standards/hdaudio/
POWER DOWN STATES
Table 5. Power Down States
1
2
Parameter
Digital GPIO Pins: GPIO_0, GPIO_1/EAPD
S/PDIF_OUT
POWER SUPPLY
Parameter
Function node in D0, all nodes active
Function node in D3
Codec in RESET
Individual block power savings
Guaranteed but not tested.
Measurements reflect main ADC.
RMS values assume sine wave input.
Powering down the MIC_BIAS powers down all port MIC_BIAS pins. This disables all microphone bias circuits set to 100% or 50%, setting them to the Hi-Z state. The
Function node D3 state powers down all nodes except for the V
background functions such as jack presence detection or analog pass-through are required. Mixer should be kept active when analog pass-through is required. MIC_BIAS
can be disabled if microphones are not in use in the power-down state.
0 Ω and Hi-Z states remain unaffected by the MIC_BIAS power state.
MIC_BIAS powered down saves
DAC pair powered down saves (each)
ADC pair powered down saves (each)
Mixer power control (and associated amps) saves
Input Signal High (V
Input Signal Low (V
Input Leakage Current (Signal High, (I
Input Leakage Current (Signal Low, (I
Output Signal High (V
Output Signal Low (V
Output Signal High (V
Output Signal Low (V
Analog (AV
Digital (DV
Digital I/O (DV
Power Supply Rejection (100 mV p-p Signal @ 1 kHz)
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
DD
DD
) 3.3 V ±5%
) 3.3 V ±10%
IO
) 3.3 V ±10%
1
IL
IH
)
OL
OL
)
OH
OH
)
)
)
)
2
IL
IH
)
)
I
I
I
I
OUT
OUT
OUT
OUT
= –500 μA
= +1500 μA
= –500 μA
= +1500 μA
REF
Rev. 0 | Page 6 of 16 | July 2007
1
, Mixer and MIC_BIAS nodes which have independent power controls. V
ID
60
23
3
6
5
0
0
VDD
Typ
Min
DV
0
DV
0
DV
0
3.13
2.97
2.97
IO
IO
IO
× 0.60
× 0.72
× 0.72
IA
36
1.2
3
6
4.4
3
1.0
VDD
Typ
150
50
3.30
119
36
3.30
198
60
3.30
3.96
1.20
80
Typ
REF
should be kept active when
Max
DV
DV
DV
DV
DV
DV
3.46
3.63
3.63
IO
IO
IO
IO
IO
IO
Unit
mA
mA
mA
mA
mA
mA
mA
× 0.24 V
× 0.10 V
× 0.10 V
Unit
V
nA
μA
V
V
V
mW
mA
V
mW
mA
V
mW
mA
dB