92HD005 Datasheet, PDF (18/205 Pages) Integrated Device Technology – 4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE

92HD005/92HD005D
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
PC AUDIO
Digital
Microphones
Figure 5. Quad Digital Microphone Configuration
Off-Chip On-Chip
External
Multiplexer
DMIC_0
On-Chip
Multiplexer
Pin
STEREO
ADC0
PCM
Stereo Channels
Output For
DMIC_0 L & R
DMIC_CLK
Pin
DMIC_1
Pin
External
Multiplexer
On-Chip
Multiplexer
Note: Valid ADC
Pairs include:
ADC0/ADC1,
STEREO
ADC1
PCM
Stereo Channels
Output For
DMIC_1 L & R
DMIC_0
Valid
Data R0
Valid
Data L0
Valid
Data R0
Valid
Data L0
DMIC_1
Valid
Data R1
Valid
Data L1
Valid
Data R1
Right
Left Right
Channel Channel Channel
Valid
Data L1
Left
Channel
DMIC_CLK
Note: Some Digital Microphone Implementations support data on either edge, therefore the
external mux may not be required
IDT™
18
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005/92HD005D
V 1.0 12/06