STAC9271 Datasheet, PDF (26/223 Pages) Integrated Device Technology – 10-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9271/9272/9273/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
Digital
Microphones
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,
ADC0/ADC2,
ADC1/ADC2
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
Figure 3. Quad Digital Microphone Configuration
Note: Some Digital Microphone Implementations support data on either edge, therefore, the
external mux may not be required.
IDT™ 10-CHANNEL HIGH DEFINITION AUDIO CODEC
26
IDT CONFIDENTIAL
STAC9271/9272/9273/9274 V 1.0 MARCH2007