cxa2050s Sony Electronics, cxa2050s Datasheet - Page 8

• Manufacturer Part Number: cxa2050s
• Description: Y/c/rgb/d For Pal/ntsc Color Tvs
• Manufacturer: Sony Electronics

Pin
No.
34
35
36
37
38
ABLIN/VCOMP
ABLFIL
VTIM
VD – OUT/VPROT
VD + OUT/VPROT
Symbol
34
37
38
35
36
Equivalent circuit
1.5V
147
700
700
100k
400µA
10k
400µA
– 8 –
30k
30k
1.2k
24k
1k
1k
24k
ABL control signal input and VSAW high
voltage fluctuation compensation signal
input.
High voltage compensation has linear
control characteristics for the pin voltage
range of about 8V to 1V. The control
characteristics can be varied through
EHT-V control of the bus. ABL begins to
have effect below a threshold voltage of
about 1.2V.
ABL functions as average value type.
Connect a capacitor to form the LPF of
the ABL control signal.
V timing pulse output.
Outputs the timing pulse from V sync
identification to the end of V blanking.
Pulses are positive polarity from 1 to 6V.
During zoom mode, the V blanking pulse
which has been expanded before and
after the V sync is superimposed and
output as the 1 to 3V pulse.
V sawtooth wave output and V protect
signal input.
When a large current (3mA) is drawn
from this pin, the RGB outputs are all
blanked and “1” is output to the status
register VNG.
Serves as both a V sawtooth wave output
with the reverse polarity of VD – OUT,
and a Vprotect signal input. The Vprotect
function can even be applied to this pin.
Description
CXA2050S