FUNCTION
S YMBOL
I POLARITY I
PIN NAME
TV mode 1
_. .
These input pins to select TV standards.
—
TVM
Ic u
—
TV mode 2
TVM2
2
3
An input pin for the signal 4 times the color
carrier frequency.
:
:
14.31818 MHz
17.734475 MHz
17.625 MHz
input
At NTSC mode
At PAL mode
4FSI
At SECAM mode
:
The output is the inverse 4FSI (pin 4).
Clock output
Test pin 1
4FS0
TSTI
4
5
Osco
0 2 M
0 2 M
A
test pin, Set open or to
L
level in the Normal
—
mode,
An output pin
color
The frequency of
the signals is 1/4 the 4FSI (pin 3). The signal is
output 1
6
7
reset by color frame pulse
(pin 13).
An output pin for color
When the phase
(pin 4) is 180 degree, the phase of is
of
80 degree in NTSC
of SC2 is
in PAL mode, the phase
output 2
SC2
degree when LSW
is L level
and 270 degree when LSW is H level. The SC is
same as the phase of SC I in SECAM mode.
A
test pin. Set open or to L level in the Normal
—
—
Test pin 2
Ground
TST2
GND
ICD
8
9
mode.
—
A grounding pin.
Phase comparator output for input signals RPI (pin
14) and
(pin 16). When
is advanced, output
Phase comparator
output
is Low level. When
is delayed, output is High
—
TO
10
level. When phases are equal, the terminal
ance is High.
edge of
comparator comparates rising
The CPCH input pin switches the polarity of RPI
(pin
When CPCH is L level,
comparator
—
Polarity select input
comparates rising edge of
When CPCH is H
CPCH
11
level, phase comparator comparates falling edge
of
A
test pin. Set open or to
L level in the Normal
Test pin 3
12
13
TS T3
–
mode.
An input pin for color frame signal; Connect to
CFMO
Color frame input
–
3 0 1
