92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 25

• Manufacturer Part Number: 92hd81
• Description: Single Chip Pc Audio System
• Manufacturer: Integrated Device Technology

SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Power State DMIC Widget
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
D4
D5
Single Microphone not supporting multiplexed output.
Single “Left” Microphone, DMIC input set to mono input mode.
DMIC_CLK
DMIC_CLK
Microphone
DMIC_0
DMIC_1
DMIC_0
DMIC_1
Enabled?
Digital
-
-
Figure 5. Single Digital Microphone (data is ported to both left and right channels
Or
Or
Valid Data
DMIC_CLK
DMIC_CLK
Disabled
Disabled
Output
Clock
Clock
Channel
DMIC_0
DMIC_1
Off-Chip
Right
OR
Valid Data
Pin
Pin
Valid Data
Channel
Input Disabled DMIC_CLK is HIGH-Z with Weak Pull-down
Input Disabled DMIC_CLK is HIGH-Z with Weak Pull-down
Left & Right
Left
On-Chip
Channel
DMIC_0,1
Single Line In
Valid Data
Multiplexer
Valid Data
On-Chip
25
ADC0 or 1
STEREO
Valid Data
PCM
Valid Data
92HD81
Stereo Channels
Notes
Output
PC AUDIO
V 0.97 01/09