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CXA3268AR

Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

CXA3268AR

Driver/Timing Generator for Color LCD Panels

Description

The CXA3268AR is an IC designed to drive the color

LCD panels ACX300, ACX301, ACX302 and ACX703.

This IC greatly reduces the number of peripheral

circuits and parts by incorporating a RGB driver and

timing generator for video signals onto a single chip.

This chip has a built-in serial interface circuit and

electronic attenuators which allow various settings to

be performed by microcomputer control, etc.

72 pin LQFP (Plastic)

Features

• Color LCD panel ACX300, ACX301, ACX302 and

ACX703 driver

• Supports NTSC and PAL systems

• Supports 16:9 wide display (letter box and pulse

elimination display)

• Supports Y/color difference and RGB inputs

• Supports OSD input (digital input)

• Power saving function

• Serial interface circuit

• Electronic attenuators (D/A converter)

• Trap and LPF (f0, fc variable)

• COMMON and PSIG output circuits

• Sharpness function

• 2-point γ correction circuit

• R, G, B signal delay time adjustment circuit

• D/A output pin (0 to 3V, 8 level output)

• Output polarity inversion circuit

• Supports AC drive for LCD panel during no signal

Applications

Compact LCD monitors, etc.

Absolute Maximum Ratings (Ta = 25°C)

• Supply voltage VCC1

6

V

VCC2

15

V

VCC3

15

V

VDD

5.5

V

• Analog input pin voltage

VINA (Pins 57, 58 and 59)

GND – 0.3 to VCC1 + 0.3 V

VINA (Pins 3, 69)

VCC1

V

VINA (Pin 30)

1.5 to VCC2 – 4

V

VINA (Pin 71)

0.9

Vp-p

VINA (Pins 70, 72)

0.8

Vp-p

• Digital input pin voltage

VIND (other than Pins 5, 10, 14, 15 and 16)

VSS – 0.3 to VDD + 0.3 V

VIND (Pins 5, 10)

VSS – 0.3 to +5.5 V

• Common input pin voltage

VINAD (Pins 14, 15 and 16)

GND, VSS – 0.3 to +5.5 V

• Operating temperature

Topr

–15 to +75 °C

• Storage temperature

Tstg

–55 to +150 °C

• Allowable power dissipation

PD (Ta ≤ 25°C) 737

mW

Operating conditions

• Supply voltage

VCC1 – GND1 2.7 to 3.6

V

VCC2 – GND2 11.0 to 14.0

V

VCC3 – GND3 11.0 to 14.0

V

VDD – Vss

2.7 to 3.6

V

• Input voltage

SIG.C voltage

VSIG.C

5.0 to 6.5

V

RGB input signal voltage (Pins 70, 71 and 72)∗1

VRGB

0 to 0.7 (0.5 typ.) Vp-p

Y input signal voltage (Pin 71)∗2

VY

0 to 0.5 (0.35 typ.) Vp-p

R-Y input voltage (Pin 72)∗2

VR-Y

0 to 0.49 (0.245 typ.) Vp-p

B-Y input voltage (Pin 70)∗2

VB-Y

0 to 0.622 (0.311 typ.) Vp-p

∗1 During RGB input

∗2 During Y/color difference input

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by

any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the

operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

–1–

E99529B98-PS

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