cxa1871s Sony Electronics, cxa1871s Datasheet - Page 4

• Manufacturer Part Number: cxa1871s
• Description: Ntsc/pal Y/c/jungle
• Manufacturer: Sony Electronics

Pin Description
No.
Pin
25
1
2
3
4
5
6
7
X PAL 1
X PAL 2
X NTSC
SECAM
Symbol
V1 IN
V2 IN
APC
REF
V
CC
voltage
1.3 V
2.6 V
Pin
5 V
9 V
2 V
2
3
4
5
1
V
V
CC
CC
25
7
V
CC
Equivalent circuit
V
500
CC
150
V
CC
1.2 k
V
6 k
CC
—4—
1.2 k
20 p
20 k
4 k
V
V
CC
25 k
CC
When the IC is in the SECAM
identification mode, the 4.43 MHz
VCO oscillation waveform is output
from this pin only during the VBLK
period centering on DC = 1 V. If
current of 150 µA is led from this pin
during this identification mode, the IC
switches to the SECAM mode. In the
SECAM mode, DC = 5 V.
Crystal oscillator connection pins.
Connect the PAL/N and 4.43 MHz
crystals to Pin 2, the PAL/M crystal to
Pin 3, and the NTSC crystal to Pin 4.
APC lag-lead filter CR connection pin.
Power supply pin.
Video switch input pins. Sync tip
clamping is performed, so input via
capacitors.
Description
CXA1871S