CXA2050 查看數據表（PDF） - Sony Semiconductor
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CXA2050 Datasheet PDF : 48 Pages
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Pin
No.
Symbol
34 ABLIN/VCOMP
CXA2050S
Equivalent circuit
1.5V
34
147
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.
ABL functions as average value type.
35 ABLFIL
100k
Connect a capacitor to form the LPF of
35
1.2k
the ABL control signal.
36 VTIM
V timing pulse output.
1k
Outputs the timing pulse from V sync
identification to the end of V blanking.
Pulses are positive polarity from 1 to 6V.
36
During zoom mode, the V blanking pulse
10k
1k
which has been expanded before and
after the V sync is superimposed and
output as the 1 to 3V pulse.
37 VD – OUT/VPROT
37
700
30k
24k
400µA
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.
38 VD + OUT/VPROT
38
700
30k
24k
400µA
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.
–8–
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