MN67603NS Datasheet, PDF (2/7 Pages) Panasonic Semiconductor – NTSC Color Camera Synchronizing Signal Generator LSI

MN67603NS
Block Diagram
For Video Equipment
4
4f_SCOSCI
5
4f_SCOSCO
4f_SC
OSC
3
EX4f_SCI
SC-CLK
SELECT
SC reset
1/4
1/4
1
V_DD1
2
V_SS1
22
V_DD2
21
V_SS2
11
EX910f_HI
GATE
(Dead zone)
V reset
1/525
HV-CLK
SELECT
1/455
1/2
f_V
V-Decoder
f_H 2f_H
H-Decoder
910f_H
Composite Decoder
12
TEST1
10
TEST2
Pin Descriptions
Pin No. Symbol
1
V_DD1
Pin Name
Power supply
2
V_SS1 Power supply
22
V_DD2 Power supply
21
V_SS2 Power supply
4
4f_SCOSCI Crystal oscillator
input
5
4f_SCOSCO Crystal oscillator
output
Function Description
"H" level power supply (Connect this pin to +5.0 ±0.5 V.)
Power supply for color subcarrier frequency signal circuits
"L" level power supply (Connect this pin to 0 V.)
Power supply for color subcarrier frequency signal circuits
"H" level power supply (Connect this pin to +5.0 ±0.5 V.)
Power supply for horizontal and vertical synchronizing
signals
"L" level power supply (Connect this pin to 0 V.)
Power supply for horizontal and vertical synchronizing
signals
Connect these pins to a 14.31818-MHz crystal oscillator
through capacitors appropriate for V_SS1. "L" level input to
the EXT/INT pin (which includes a built-in feedback
resistor) produces oscillation; "H" level input stops it.