M61508FP
3. Timer Setting System
T = 10 ms
Latch
CLK
D34
Conditions
DATA
1
1
f =
=
= 50 Hz
2 • T
2 • 10 ms
Audio Signal
In case of Timer Setting Time/T = 10 ms setting
Audio Signal
Zero-cross Detector
100%
50 Hz <
Upper fig.
100%
0%
Pattern 1
Pattern 2
50 Hz >
T = 10 ms
CLK
Latch
Conditions
D34
DATA
Pattern 1
f = 30 Hz
Audio Signal
Pattern 2
Audio Signal
f = 30 Hz
The Timer Setting Time T makes T = 20 ms (Zero-cross detect of 25 Hz is 100%) maximum and it is setting by it.
REJ03F0203-0201 Rev.2.01 Mar 31, 2008
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