IC502 LC72131
22
21
20
19
18
PHASE
DETECTOR
CHARGE PUMP
REFERENCE
UNLOCK
DIVIDER
DETECTOR
SWALLOW COUNTER
C2B
I/F
1
3 4 5 6
• Display section
IC202 BA6208
SWITCH
SWITCH
1
2
3
4
17
16
POWER
1/2
ON
RESET
1/16, 1/17 4BITS
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER LATCH
8 10 11
13
MOTOR
DRIVE
MOTOR
DRIVE
REG
5
6
7
8
15
12
UNIVERSAL
COUNTER
9
– 25 –