92hd89d Integrated Device Technology, 92hd89d Datasheet - Page 20

• Manufacturer Part Number: 92hd89d
• Description: Eight Channel Hd Audio Codec Low Power Optimized For Ecr15b And Eup
• Manufacturer: Integrated Device Technology

92HD89D
Eight channel HD Audio codec optimized for low power
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
2.4.
2.5.
2.6.
Input Multiplexers
ADC Multiplexers
Power Management
Digital Microphone inputs
SPDIF Outputs
SPDIF Input
Function
The codec implements 4 port input multiplexers. These multiplexers allow a preselection of one of
four possible inputs:
The codec implements 2 ADC input multiplexers. These multiplexers incorporate the ADC record
gain function (0 to +22.5dB gain in 1.5dB steps) as an output amp and allow a preselection of one of
these possible inputs:
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The HD Audio specification defines power states, power state widgets, and power state verbs.
Power management is implemented at several levels. The Audio Function Group (AFG) , all con-
verter widgets, and all pin complexes support the power state verb F05/705. Converter widgets are
active in D0 and inactive in D1-D3.
The following table describes what functionality is active in each power state.
DAC
ADC
D2S
Port A
Port B
Port C
Port D
Port E
Port F
Port G
Port H
CD In
Mixer Output
DMIC 0 (only available in 48 pin package)
DMIC1 (only available in 48 pin package)
Inport0_Mux
Port A
Port B
Port D
Port F
On
On
On
On
On
D0
On
Inport1_Mux
Table 9. Input Multiplexers
Port G
Port A
Port E
Port H
D1
On
Off
Off
Off
Off
Off
1
20
On (idle)
Inport2_Mux
Off
Off
Off
Off
Off
D2
Port C
Port G
Port H
Port B
On (idle)
D3
Off
Off
Off
Off
Off
Inport3_mux
6
DAC 0
DAC 1
DAC 2
DAC 3
D3cold
Off
Off
Off
Off
Off
Off
Specific
Vendor
D4
Off
Off
Off
Off
Off
Off
2
SpecificD5
Vendor
V1.0 04/10
92HD89D
Off
Off
Off
Off
Off
Off
2