92HD66C IDT [Integrated Device Technology], 92HD66C Datasheet - Page 30
92HD66C
Manufacturer Part Number
92HD66C
Description
SIX CHANNEL HD AUDIO CODECS
Manufacturer
IDT [Integrated Device Technology]
Datasheet
1.92HD66C.pdf
(291 pages)
- Current page: 30 of 291
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92HD66C
SIX CHANNEL HD AUDIO CODECS WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
IDT CONFIDENTIAL
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
NO
NO
Digital detector will detect the “BEEP_SENSE” following the state machine in Figure above and out-
put a signal called “BEEP_PRESENCE”. BEEP_PRESENCE is 1 when the state is Beep
_Presence. Otherwise, it is 0.
ter will be reset during the second 500us of 1ms window. So the actual sample period is 500us. The
In the 1ms window, the signal will be sampled and counted in first 500us of 1ms window. The coun-
Activity on Pin?
Link Reset
Active?
Figure 7. Analog PCBeep Flow Chart
64mS
POR
IDLE
Wait
YES
YES
30
Amplifiers / Enable
Activity on Pin?
Path / Turn off
Inactivity over
Disable Beep
Beep Path
threshold?
Amplifiers
Turn on
YES
NO
NO
YES
NO
Activity on Pin?
PC_Beep
Enabled?
Analog
YES
NO
NO
V 1.0 2/12
92HD66C
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