92HD73C Просмотр технического описания (PDF) - Integrated Device Technology

Номер в каталоге

Компоненты Описание

производитель

92HD73C

SIX CHANNEL HD AUDIO CODEC

Integrated Device Technology 

92HD73C

SIX CHANNEL HD AUDIO CODEC, PREMIUM WLP 3/4 COMPLIANT

PC AUDIO

Digital Mics

0

1

2

3

4

Data Sample

N/A

Single Edge

Double Edge on

either DMIC_0 or 1

OR

Single Edge on

DMIC_0 and 1

Double Edge on

one DMIC pin and

Single Edge on the

second DMIC pin.

Double Edge

ADC Conn.

Notes

N/A

No Digital Microphones

0, or 1

Available on either DMIC_0 or DMIC_1

Both ADC Channels produce data, may be in phase or out by 1/2 DMIC_CLK

period depending upon external configuration and timing

0, or 1

Available on either DMIC_0 or DMIC_1, External logic required to support

sampling on a single Digital Mic pin channel on rising edge and second Digital Mic

right channel on falling edge of DMIC_CLK for those digital microphones that don’t

support alternative clock edge capability. If both DMIC_0 and DMIC_1 are used to

support 2 digital microphones, 2 separate ADC units will be used, however, this

configuration is not recommended since it consumes two stereo ADC resources.

0, or 1

Requires both DMIC_0 or DMIC_1, External logic required to support sampling on

a single Digital Mic pin channel on rising edge and second Digital Mic right

channel on falling edge of DMIC_CLK for those digital microphones that don’t

support alternative clock edge capability. Two ADC units are required to support

this configuration

0, or 1

Connected to DMIC_0 and DMIC_1, External logic required to support sampling

on a single Digital Mic pin channel on rising edge and second Digital Mic right

channel on falling edge of DMIC_CLK for those digital microphones that don’t

support alternative clock edge capability. Two ADC units are required to support

this configuration

Table 11. Valid Digital Mic Configurations

Power State

DMIC Widget

Enabled

DMIC_CLK

Output

D0

Yes

Clock Capable

D1-D3

D0-D3

Yes

Clock Disabled

No

Clock Disabled

DMIC_0,1

Input Capable

Input Disabled

Input Disabled

Notes

DMIC_CLK Output is Enabled when either DMIC_0 or DMIC_1

Input Widget is Enabled. Otherwise, the DMIC_CLK remains Low

DMIC_CLK is HIGH-Z with Weak Pull-down

DMIC_CLK is HIGH-Z with Weak Pull-down

Table 12. DMIC_CLK and DMIC_0,1 Operation During Power States

24

SIX CHANNEL HD AUDIO CODEC, PREMIUM WLP 3/4 COMPLIANT

92HD73C

V 1.3 08/11

Share Link: