92HD87B2X5NDGXTBX IDT, Integrated Device Technology Inc, 92HD87B2X5NDGXTBX Datasheet - Page 13

• Manufacturer Part Number: 92HD87B2X5NDGXTBX
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 92HD87B2X5NDGXTBX

• Lead Free Status / RoHS Status: Compliant

IDT PROPRIETARY / IDT
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
2.2.
2.3.
2.4.
Analog Mixer
ADC Multiplexers
Power Management
Digital Microphone inputs
ADC Volume Control
CONFIDENTIAL
Function
See reference design for more information on Jack Detect implementation.
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 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
Port A
Port C
Port F
Mixer Output
DMIC 0
Resistor
39.2K
20.0K
10.0K
2.49K
5.11K
On
On
On
On
D0
On
Pull-up to AVDD
Table 3. Power Management
PORT A (HP0)
PORT B (HP1)
D1
Off
Off
Off
Off
Off
SENSE_A
PORT C
1
13
Off
Off
Off
Off
D2
Off
Pull-up to AVDD
Off
Off
Off
Off
D3
Off
SENSE_B
PORT F
DMIC0
NA
92HD87
D3cold
Off
Off
Off
Off
Off
Specific D4
Vendor
Off
Off
Off
Off
Off
PC AUDIO
SpecificD5
V 0.95 10/10
Vendor
Off
Off
Off
Off
Off