CXA3268AR 查看數據表（PDF） - Sony Semiconductor

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CXA3268AR

Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

CXA3268AR

Electrical Characteristics

AC Characteristics

Unless otherwise specified, Settings 1 and 2, the serial data initial settings, and the following setting conditions

are required.

Ta = 25°C, VCC1 = 3.0V, VCC2 = VCC3 = 12V, GND1/2/3 = 0V, VSS = 0V, SW2 = ON, SW4 = ON,

SW32/34/36 = OFF, no video input, SG1 input to TP5

Note: Serial data values in the table are HEX notation.

Item

Symbol

Serial data

setting (HEX)

Measurement conditions

Min. Typ. Max. Unit

Maximum gain

between input and

output

Y/color difference

GMAX

CONT FFh

Input SG2 (50mVp-p) to TP71 and

measure the output amplitude at TP36.

29 32 34 dB

Maximum gain

between input and

output

RGB

GRGBMAX

CONT FFh

MODE 00h

Input SG2 (50mVp-p) to TP71 and

measure the output amplitude at TP36.

26 29 31 dB

Amount of contrast

attenuation

Gcon

Assume the output amplitude at TP36 when

CONT 00h SG2 (0.5Vp-p) is input to TP71 as GMIN. 25 30

∆gcon = GMAX – GMIN

dB

Inverted and

non-inverted gain

difference

∆GINV

Assume the inverted output amplitude at

TP36 when SG2 (0.35Vp-p) is input to TP71

CONT 2Fh as Vinv, and the non-inverted output

amplitude as Vninv.

∆ginv = 20 log (Vninv/Vinv)

±0.3 dB

Gain difference

between R, G and

B

Input SG2 (0.35Vp-p) to TP71 (TP70, TP72),

∆GRGB1 CONT 2Fh measure the non-inverted output amplitude

at TP32, TP34 and TP36, and obtain the

∆GRGB2

MODE 00h

CONT 2Fh

maximum and minimum difference between

these values.

0.6

dB

0.6

Sub-contrast

variable amount

Sub-bright

variable amount

Black limiter

variable amount

∆GSC1

∆GSC2

∆VSB1

∆VSB2

VBL1

VBL2

Set CONT = 26h, input SG2 (0.35Vp-p) to

SUB-CONT TP71, and assume the non-inverted output

00h amplitude at TP32 and TP34 when SUB-

CONT R/B = 9Ah, 00h and FFh as V1, V2

SUB-CONT

FFh

and V3, respectively.

∆Gsc1 = 20 log (V3/V1)

∆Gsc2 = 20 log (V2/V1)

–5.5 –4.5

dB

2.0 2.7

SUB-BRT

R, B 00h

SUB-BRT

R, B FFh

Set U-BRT = 1Ah and measure the non-

inverted level at TP32 and TP34 relative to

the non-inverted black level at TP36 when

SUB-BRT R/B = FFh and 00h.

–1.5 –1.0

V

0.8 1.2

BLK-LIM

00h

Set U-BRT = FFh, measure the inverted and

non-inverted black limit level at TP36 when ±1.6 ±2.1 ±2.7

BLK-LIM = 00h and 1Fh, and assume the

V

BLK-LIM difference from the output DC voltage as

1Fh VBL1 and VBL2, respectively.

±4.7 ±5.1 ±5.4

– 14 –

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