92hd88b4x5ndg Integrated Device Technology, 92hd88b4x5ndg Datasheet - Page 19

• Manufacturer Part Number: 92hd88b4x5ndg
• Description: Single Chip Pc Audio System Codec+mono Speaker Amplifier+capless Hp+ldo
• Manufacturer: Integrated Device Technology

IDT PROPRIETARY / IDT
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD88
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
2.4.
2.5.
ADC Multiplexers
Power Management
Digital Microphone inputs
ADC Volume Control
Capless HP Amps
Analog PC_Beep
Digital PC_Beep
Analog Clocks
SPDIF Outputs
Mixer Volumes
VrefOut Pins
Lo/HP Amps
Analog mixer
Input Boost
CONFIDENTIAL
VAG amp
GPIO pins
BTL Amp
Ref ADC
Function
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
7 possible inputs:
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 C
Port F
Mixer Output
DMIC 0
DMIC 1
On
On
On
On
On
On
On
On
On
On
On
On
D0
On
On
On
On
On
On
On
Table 5. Power Management
D1
On
On
Off
Off
Off
Off
Off
Off
On
On
On
On
On
Off
On
On
On
On
On
1
19
On(idle)
On
On
On
On
Off
Off
Off
Off
Off
Off
Off
Off
D2
Off
On
Off
Off
On
On
Low Drive
Low Drive
Low Drive
Low Drive
On(idle)
On
On
Off
Off
Off
Off
Off
Off
Off
Off
D3
Off
Off
Off
On
5
5
5
2
2
2
3
Low Drive
Low Drive
Low Drive
92HD88
D3cold
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
On
Off
Off
Off
Off
2
2
Specific D4
Low Drive
Low Drive
Low Drive
Vendor
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
On
Off
Off
Off
Off
2
2
PC AUDIO
SpecificD5
V 0.94 07/11
Vendor
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off