CXA3017R 데이터 시트보기 (PDF) - Sony Semiconductor

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CXA3017R

Decoder/Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

Analog Block Pin Description

Pin Symbol Pin voltage

No.

1 EXT-R

2 EXT-G

—

3 EXT-B

4 TRAP

1.0V

32 DA OUT 0.2 to 2.9V

34 DWN

—

35 RGT1

—

36 FB PSIG

41 FB B

44 FB G

46 FB R

37 GND3

1.5V

0V

CXA3017R

Equivalent circuit

VCC1

1

2

3

GND1

25µA

300

50k 1.1V

VCC1

4

GND1

VDD2

32

VSS

75µA

1k

300

200µA

50k

50k

50k

VCC2

500

34

35

GND2

Description

External digital signal inputs.

There are two thresholds: Vth1

(= 1.0V) and Vth2 (= 2.0V).

When one of the RGB signals

exceeds Vth1, all of the RGB

outputs go to black level; when

an input exceeds Vth2, only

the corresponding output goes

to white level.

Connect these pins to GND

when not used.

External trap connection.

Connect the trap between this

pin and GND to eliminate the

chroma component.

Leave this pin open when

using Y/C and Y/color

difference mode.

DAC output.

8-level, 7-step DC voltage from

approximately 0.2 to 2.9V is

output from this pin.

DCX501BK up/down and

right/left inversion switching.

These pins are open collector

outputs, so first connect a

100kΩ resistor between these

pins and the panel VDD (15.5V)

and then connect to the

DCX501BK.

VCC1

36

41

44

46

GND2

1k

1k

100k

–5–

Smoothing capacitor

connection for the feedback

circuit of R, G, B and PSIG

output DC level control.

Use a low-leakage capacitor

because of high impedance.

GND for the PSIG circuit.

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