D-61508-98-C

ELECTRIC

MITSUBISHI

( /22)

THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL

MITSUBISHI SOUND PROCESSOR ICs

M61508FP

Pattern 1

CLK

DATA

Audio Signal

3. Timer Setting System

Latch

Conditions

D34

T=10 msec

f=

2

T

1

=

2 10msec

1

=50Hz

In case of Timer Setting Time/T =10 msec setting

CLK

DATA

Audio Signal

Latch

Conditions

D34

T=10 msec

f=30Hz

Pattern 2

Audio Signal

f=30Hz

The Timer Setting Time T makes T=20msec (Zero-cross detect of 25Hz is 100%)

maximum and it is setting by it.

18

Audio Signal

50Hz <

50Hz >

Zero-cross Detector

100%

100%

0%

Upper fig.

Pattern 1

Pattern 2