92hd98 Integrated Device Technology, 92hd98 Datasheet - Page 28
92hd98
Manufacturer Part Number
92hd98
Description
Datasheet
Manufacturer
Integrated Device Technology
Datasheet
1.92HD98.pdf
(274 pages)
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92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
2.14. Analog PC-Beep
Microphones
Microphones
Digital
Digital
DMIC_CLK
DMIC_0
DMIC_1
The codec supports automatic routing of the PC_Beep pin to Port A, Port B, and Port D outputs
when the HD-Link is in reset.
When the link is active (not held in reset) Analog PC-Beep may be enabled manually. Analog
PC_Beep is mixed at the port and only ports enabled as outputs will pass PC_Beep.
Note: Some Digital Microphone Implementations support data on either edge, in this case the
external multiplexer is not required.
Multiplexer
Multiplexer
External
External
DMIC_CLK
Figure 7. Quad Digital Microphone Configuration
Off-Chip
DMIC_0
DMIC_1
Channel
Right
Pin
Pin
Pin
Data R0
Data R1
Valid
Valid
On-Chip
Channel
Data L0
Data L1
Valid
Valid
Left
Multiplexer
Multiplexer
On-Chip
On-Chip
Channel
Right
Data R0
Data R1
Valid
Valid
28
Data L0
Data L1
Valid
Valid
Channel
Left
STEREO
STEREO
ADC0
ADC1
PCM
PCM
Data R0
Data R1
Valid
Valid
Stereo Channels
Stereo Channels
DMIC_0 L&R
DMIC_1 L&R
Output For
Output For
V 0.91 10/10
92HD98
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