CXA2503 データシートの表示（PDF） - Sony Semiconductor

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CXA2503

Decoder/Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

CXA2503AR

Pin

No.

Symbol Pin voltage

7 S.SEP IN

1.0V

8 EXT-R

9 EXT-G

—

10 EXT-B

11 VCO ADJ

—

41 B OUT

43 G OUT

45 R OUT

VCC2

2

Equivalent circuit

VDD2

17k

7

GND1

10µA

1.8V 2.8V

VCC1

8

9

10

GND1

30µA

300

50k 2.7V

VCC2

11

GND2

500

70µA

VCC2

41

43

45

GND2

50

50

40µA

Description

Sync separation circuit input.

Input the H FILTER output

signal.

External digital signal inputs.

There are two threshold

values: 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.

VCO adjustment voltage

output.

RGB signal outputs.

42 FB B

44 FB G

46 FB R

2.5V

VCC2

42

1k

44

46

GND2

–6–

Smoothing capacitor

connection for the feedback

circuit of RGB output DC level

control.

Use a low-leakage capacitor

because of high impedance.

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