CXA3572 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA3572

Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

CXA3572R

Item

Symbol

Serial data

setting (HEX)

Measurement conditions

Min. Typ. Max. Unit

White limiter

variable amount

VWL

Set CONT = FFh, input SG2 (0.2Vp-p)

to TP22, measure the non-inverted

white limit level, and obtain the

0.3 0.6 1.0 V

difference from the output DC voltage.

Black level

difference between ∆VB

R, G and B

Measure the non-inverted black level

at TP8, TP10 and TP12, and obtain

the maximum and minimum

—

difference between these values.

— 300 mV

RGB and PSIG

output DC voltage

Vc

Measure the output DC level

(average voltage) at TP8, TP10,

TP12 and TP14.

5.8 6.0 6.2 V

DC voltage

difference between ∆Vc

RGB and PSIG

Measure the output average voltage

difference at TP8, TP10 and TP14

relative to the output average

—

voltage at TP12.

— 300 mV

VPB1

PSIG-BRT variable

amount

VPB2

PSIG-BRT

00h Assume the PSIG output amplitude

when PSIG-BRT = 00h and 7Fh as

PSIG-BRT VPB1 and VPB2, respectively.

7Fh

8.5 10.0

1.0 2.0

—

Vp-p

—

USER-BRT

variable amount

∆UB1

∆UB2

U-BRT Measure the non-inverted black level

00h at TP12 when U-BRT = 00h and FFh 4.5 4.8 —

and assume the difference from the

V

U-BRT average voltage as ∆UB1 and ∆UB2, 1.4 2.0 2.5

FFh respectively.

Level difference

between PSIG-BLK ∆VBB

and BLK-LIM

SLWD

1

Set BLK-LIM = 00h and measure

the difference between the inverted —

and non-inverted black level at TP12

and TP14.

— 300 mV

HUE variable

amount R

HUE variable

amount B

Set U-BRT = 80h, CONT = 80h,

∆HUR1 HUE 00h COLOR = 40h, input SG4 (56mVp-p) 1.5 3

to TP23, input SG4 (100mVp-p) to

TP24, and assume the amplitude at

∆HUR2 HUE 3Fh TP8 when HUE = 80h, 00h and 3Fh — –5

as VB1, VB2 and VB3.

Similarly, assume the amplitude at

∆HUB1 HUE 00h TP10 as VR1, VR2 and VR3.

∆HUR1 = 20 log (VR2/VR1)

— –5

∆HUR2 = 20 log (VR2/VR1)

∆HUB2

HUE 3Fh

∆HUB1 = 20 log (VB2/VB1)

∆HUB2 = 20 log (VB2/VB1)

1.5 3

—

–2

dB

–2

—

Picture variable

amount

GP1

GP2

PIC-G Set CONT = 80h, input SG3 to

00h TP22, and measure the TP12

–2.5 0

amplitude at f0 relative to the TP12

PIC-G amplitude at 100kHz when PIC-G =

1Fh 00h and 1Fh, respectively.

9

12

2.5

dB

—

Color variable

amount

GC1

GC2

Input SG4 (160mVp-p) to TP23 and

COLOR TP24, and assume the output

—

00h amplitude at TP8 and TP10 when

— –20

COLOR = 00h, 40h and 50h as V1,

dB

COLOR

50h

V2 and V3, respectively.

GC1 = 20 log (V1/V2)

GC2 = 20 log (V3/V2)

0.5 — —

– 15 –

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