For Video Equipment
MN67621F
Color Video Camera Synchronizing Signal Generator LSI
Overview
The MN67621F generates color video camera synchro-
nizing signals for the NTSC, PAL, and SECAM video
systems.
It divides the reference frequency to generate the horizon-
tal synchronizing signal f
H
, the vertical synchronizing
signal f
V
, and the composite synchronizing signal.
A built-in 4f
SC
crystal oscillator circuit divides the fre-
quency by four to generate the color subcarrier frequency
signals SC1 and SC2.
Pin Assignment
Features
Supports CCDs with 420, 510, 590, and 670 H pixels
Supports NTSC, PAL, and SECAM video systems
PAL system 25Hz offset
Includes built-in oscillator circuit using external
crystal
Generates 14 signals, including the horizontal and
vertical synchronizing signals and the color
subcarrier frequency signals.
VD
N.C.
N.C.
N.C.
N.C.
PBLK
N.C.
N.C.
WBKL
(TOP VIEW)
QFP044-P-1010
Applications
Color video cameras
OSCI
1
2
3
4
5
6
7
8
9
10
11
TEST1
TEST2
TEST3
V
SS1
CLK
V
DD1
EO
N.C.
ED
N.C.
N.C.
34
35
36
37
38
39
40
41
42
43
44
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
N.C.
N.C.
N.C.
CCDS2
CCDS1
CSYNC
CBLK
CP2
TVMD2
SCBLK
FMTP
TVMD1
LSW
BFIDP
N.C.
WHD
V
SS2
SC2
SC1
V
DD2
N.C.
OSCO