92HD87 データシートの表示（PDF） - Integrated Device Technology
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92HD87 Datasheet PDF : 204 Pages
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92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
The codec supports the following digital microphone configurations:
Digital Mics
0
1
2
Data Sample
N/A
Single Edge
Double Edge on
either DMIC_0 or
1
ADC Conn.
Notes
N/A No Digital Microphones
0, or 1
When using a microphone that supports multiplexed operation (2-mics
can share a common data line), configure the microphone for “Left” and
select mono operation using the vendor specific verb.
“Left” D-mic data is used for ADC left and right channels.
0, or 1
External logic required to support sampling on a single Digital Mic pin
channel on rising edge and second Digital Mic right channel on falling
edge of DMIC_CLK for those digital microphones that don’t support
alternative clock edge (multiplexed output) capability.
Power State
D0
D1-D3
D0-D3
D4
D5
DMIC Widget
Enabled?
Yes
Yes
No
-
-
DMIC_CLK
Output
Clock Capable
Clock
Disabled
Clock
Disabled
Clock
Disabled
Clock
Disabled
DMIC_0,1
Input Capable
Input Disabled
Input Disabled
Input Disabled
Input Disabled
Notes
DMIC_CLK Output is Enabled when either DMIC_0 or Input
Widget is Enabled. Otherwise, the DMIC_CLK remains Low
DMIC_CLK is HIGH-Z with Weak Pull-down
DMIC_CLK is HIGH-Z with Weak Pull-down
DMIC_CLK is HIGH-Z with Weak Pull-down
DMIC_CLK is HIGH-Z with Weak Pull-down
IDT CONFIDENTIAL
19
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V 0.995 01/11
92HD87
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