CXA2055P Просмотр технического описания (PDF) - Sony Semiconductor

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производитель

CXA2055P

Preamplifier for High Resolution Computer Display

Sony Semiconductor 

CXA2055P

2. Blanking addition function

The output is blanked while the BLK pin (Pin 16) is high level.

The BLK pin threshold level is approximately 1.5 V.

3. OSD addition function and OSD contrast control

OSD can be added to the video signal while the OSD-R, G and B pins (Pins 12, 13 and 14) are high level.

OSD blanking is added when any of these three channels is high level.

OSD blanking is also added to all three channels while the YS pin (Pin 15) is high level. See the following

logic.

YS PULSE

from 15pin

OSD PULSE (R)

from 12pin

OSD PULSE (G)

from 13pin

OSD PULSE (B)

from 14pin

Ys Circuit (R, G, B)

1 : Active

0 : Passive

OSD Circuit (R)

1 : Active

0 : Passive

OSD Circuit (G)

1 : Active

0 : Passive

OSD Circuit (B)

1 : Active

0 : Passive

4. CONTRAST function

The CONTRAST function performs gain control for the R, G and B-OUT output amplitudes.

5. ABL function

ABL control can be performed by Pin 27 by setting PINSW. The variable range is approximately 13.7 dB.

See the characteristics diagrams hereafter for the control characteristics.

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