Advertisement
XV-Cl
ou
3) Functions
0
Functions of pins
0
SW (pin No. 1)
Used to switch between the INT signal from the video chroma circuit and the EXT signal from the EXT R/G/B
input terminal.
At "L" level, the INT signal is accepted; at "H" level, the EXT signal.
CONTRAST
(pin No. 2)
Used to receive DC voltage and to adjust the contrast of primary color output.
EXT IN B, EXT IN G, EXT IN R (pin Nos. 3,4 and 5)
Used to receive the external R, G and B inputs.
Each input should come through a coupling capacitor.
VCCI (pin No. 6)
Used to connect positive-polarity
power.
VEE (pin Nos. 7 and 31)
Used to connect negative-polarity
power.
C IN (pin No. 8)
Used to input the chroma signal.
ACC FILTER (pin No. 9)
Used to connect with the ACC detection filter.
Y IN (pin No. 10)
Used to receive the luminance
signal.
COLOR (pin No. 11)
Used to receive DC voltage for color adjustment.
F ADJ (pin No. 12)
A resistor is added between this terminal and GND.
Used to adjust the filter's frequency characteristic.
AGC OUT (pin No. 13)
Used to output the voltage detected by the video system AGC detector.
AGC FILTER (pin No. 14)
Used to connect a filter to detect the video system's AGC.
CLAMP (pin No. 16)
Used to connect with a capacitor to clamp the luminance
signa .I pedesta
APL (pin No. 17)
Used to connect a filter to detect the luminance
signal's APL (Average P
H FILTER OUT (pin No. 18)
Used to output the video signal for sync separation.
SYNC SEP (pin No. 19)
Used to input the video signal for the sync separation
circuit.
cture Level).
SYNC OUT (pin No. 20)
Used to output the sync signal picked up by the sync separation
circuit.
Can be connected with a controller
with different power supply because of the open-collector
output type. The output signal gets to "H" level for
sync and to 'IL" level otherwise.
36
Advertisement
