AD1987

Rev. 0

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Page 7 of 18

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May 2007

HD–AUDIO LINK SPECIFICATION

HD-audio signals comply with the High Definition audio speci-

fications. Please refer to these specifications at:

http://www.intel.com/standards/hdaudio/

POWER DOWN STATES

Parameter

Unit

Function Node in D0, All Nodes Active

66

41

mA

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.

21

1.2

mA

Codec in RESET

33mA

Individual Block Power Savings

DAC Pair Powered Down Saves (Each)

ADC Pair Powered Down Saves (Each)

Mixer Power Control (And Associated Amps) Saves

MIC_BIAS Powered Down Saves

2, 3

0

Ω and Hi-Z states remain unaffected by the MIC_BIAS power state.

6

5.3

0

0

5

3.2

2

0.5

mA

mA

mA

mA