CXA2050S
Pin
No.
Symbol
Equivalent circuit
Description
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.
1.5V
147
ABLIN/VCOMP
34
34
ABL functions as average value type.
100k
Connect a capacitor to form the LPF of
the ABL control signal.
35 ABLFIL
35
1.2k
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.
1k
1k
36 VTIM
36
10k
700
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.
30k
37 VD – OUT/VPROT
37
24k
400µA
700
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.
38 VD + OUT/VPROT
30k
24k
38
400µA
– 8 –
SONY [ SONY CORPORATION ]
