92hd83 Integrated Device Technology, 92hd83 Datasheet - Page 18

• Manufacturer Part Number: 92hd83
• Description: Single Chip Pc Audio System Codec+speaker Amplifier+capless Hp+ldo
• Manufacturer: Integrated Device Technology

SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD83
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
2.3.
2.4.
2.5.
Analog Mixer
ADC Multiplexers
Power Management
Digital Microphone inputs
ADC Volume Control
Analog PC_Beep
SPDIF Outputs
Mixer Volumes
Analog Clocks
Analog mixer
VrefOut Pins
Input Boost
GPIO pins
Function
Ref ADC
The mixer supports independent gain (-34.5 to +12dB in 1.5dB steps) on each input as well as inde-
pendent mutes on each input. The following inputs are available:
The 92HD83 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 6 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 C
Port E
Port F
Port C
Port E
Port F
Mixer Output
DMIC 0
DMIC 1
D0
On
On
On
On
On
On
On
On
On
On
On
On
On
On
Table 5. Power Management
D1
On
Off
Off
Off
Off
Off
Off
Off
On
On
On
On
On
On
1
18
On(idle)
D2
Off
Off
Off
Off
Off
Off
Off
On
Off
Off
Off
Off
On
On(idle)
On
D3
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
On
5
5
92HD83
D3cold
Off
Off
Off
Off
Off
Off
Off
Off
On
Off
Off
Off
Off
Off
Specific D4
Vendor
Off
Off
Off
Off
Off
Off
Off
Off
On
Off
Off
Off
Off
Off
PC AUDIO
SpecificD5
V 0.96 01/09
Vendor
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off