MN6761 PANASONIC [Panasonic Semiconductor], MN6761 Datasheet - Page 3

• Manufacturer Part Number: MN6761
• Description: External Synchronization Control LSI for Color Video Cameras
• Manufacturer: PANASONIC [Panasonic Semiconductor]

For Video Equipment
Pin No.
Pin Descriptions
23
22
11
24
17
12
13
14
15
8
7
9
6
3
1
2
4
Xf
GLSYNC
SCPSW1
SCPSW2
Xf
Symbol
CLBSC
HPCO
WHD
LSW
H
V
V
V
V
SC1
H
N/P
Xf
f
OSCO
OSCI
DD1
DD2
HP
SS1
SS2
H
Power supply
Power supply
Power supply
Power supply
External synchronizing
signal input
External burst
subcarrier input
Horizontal synchroni-
zation input
Monostable multi-
vibrator input
Subcarrier input
Subcarrier phase
switch inputs
Line switch input
NTSC/PAL selection
input
Horizontal phase
comparator output
Oscillator input for
the synchronization
circuits
Oscillator output for
the synchronization
circuits
Clock output for
synchronizing signal
circuits
Pin Name
"H" level (5V) power supply for subcarrier circuits
"L" level (GND) power supply for subcarrier circuits
"H" level (5V) power supply for synchronizing signal
circuits
"L" level (GND) power supply for synchronizing signal
circuits
Input pin for composite synchronizing signal derived from
video signal (reference for horizontal and vertical signals)
Input pin for burst subcarrier signal derived from video
signal (reference for subcarrier signals)
Input pin for WHD signal from synchronizing signal
generator
Pin for connecting CR circuit for adjusting delay for analog
monostable multivibrator (thus adjusting horizontal phase)
Input pin for SC1 signal from synchronizing signal
generator
Pin selecting which of the four phase signals generated from
the SC1 signal goes to the phase comparator
For a PAL system, supply the LSW signal from the
synchronizing signal generator.
For an NTSC system, keep this pin at "H" level.
"H" level selects NTSC operation;
"L" level, PAL operation.
This pin is at "L" level when the WHD signal, after passing
through the monostable multivibrator, leads the rising edge
of the HSYNC signal derived by separating off the
horizontal component of the GLSYNC signal and is at "H"
level when the signal lags. At all other times, it is in the
high-impedance state.
Clock oscillator pins for the synchronization circuits.
Connect these pins to an inductor, capacitor, and variable
capacitor. (The pins have built-in feedback resistors.)
The circuit oscillates during external synchronization mode.
The oscillation stops for internal synchronization mode.
The oscillator frequency, Xf
NTSC and 4.406 MHz (282f
Clock output pin for synchronizing signal circuits.
This pin provides the clock (Xf
synchronization mode and stays at "L" level for the internal
synchronization mode. Connect to the EX910f
synchronizing signal generator for NTSC operation and to
the EX282f
H
I pin for PAL operation.
Function Description
H
H
) for PAL.
is 14.31818 MHz (910f
H
) for the external
MN6761S
H
I pin of the
H
) for