User Guide

21
21DN-D4000
TC9246F (IC114)
16
1
15
2
14
3
13
4
12
5
11
6
10
7
9
8
REF
VAR
Lock Ditection
Circuit
Microcomputer Interface
VCO
Selector
Phase
Comparator
Programmable Counter
V DD LOC K S2 S1 M2 M1 CKO Vss
REF
AMP I
AMP O
XI
XO
PD
V
DDA
V SSA
BU2090F (IC602)
1V SS
2DATA
3CLOCK
4Q0
5Q1
6Q2
7Q3
8Q4
16
15
14
13
12
11
10
9
V
DD
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Control Circuit
12-bit Shift Register
Latch
Output Buffer
(Open Drain)