STAC9228 Integrated Device Technology, STAC9228 Datasheet - Page 27

• Manufacturer Part Number: STAC9228
• Description: Theater Quality Eight Channel High Definition Audio Codec With Digital Microphone Interface
• Manufacturer: Integrated Device Technology

IDT™
STAC9227/9228/9229/9230
8-CHANNEL HIGH DEFINITION AUDIO CODEC
3.7.
8-CHANNEL HIGH DEFINITION AUDIO CODEC
Analog PC-Beep
PC-Beep is NOT supported during Link Reset.
Note: Some Digital Microphone Implementations support data on either edge, therefore, the
external mux may not be required.
DMIC_CLK
DMIC_0
DMIC_1
Microphones
Digital
Figure 3. Quad Digital Microphone Configuration
Multiplexer
Multiplexer
External
External
Channel
Data R0
Data R1
IDT CONFIDENTIAL
Right
Valid
Valid
DMIC_CLK
Off-Chip
DMIC_0
DMIC_1
27
Pin
Pin
Channel
Data L0
Data L1
Valid
Left
Valid
Pin
On-Chip
Channel
Data R0
Data R1
Right
Valid
Valid
Multiplexer
On-Chip
Multiplexer
On-Chip
Data L0
Channel
Data L1
Valid
Valid
Left
STAC9227/9228/9229/9230V 1.0 MARCH 2007
Note: Valid ADC
Pairs include:
ADC0/ADC1,
ADC0/ADC2,
ADC1/ADC2
STEREO
STEREO
ADC0
ADC1
PCM
PCM
Stereo Channels
Stereo Channels
DMIC_0 L & R
DMIC_1 L & R
Output For
Output For
PC AUDIO