CXA3572 Ver la hoja de datos (PDF) - Sony Semiconductor

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Fabricante

CXA3572

Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

Pin

No.

Symbol

Pin

voltage

Equivalent circuit

Vcc1

Vth1 =

18 OSD B

19 OSD R

20 OSD G

VCC1 ×

1/3

Vth2 =

VCC1 ×

18

20k

19

20

2/3

GND1

21 VCC1

3.0V

G/Y:

1.8V

Vcc1

R/R-Y,

22 G/Y

23 R/R-Y

24 B/B-Y

B/B-Y,

RGB:

1.8V

22

1k

23

24

Y/color

difference:

2.0V

GND1

Vcc1

25 SYNC IN 0.9V

10k

1k

25

GND1

Vcc1

80k

26 DA OUT

—

26

15p

GND1

27 REF

Vcc1

25k

VCC1/2

27

100k

GND1

–6–

CXA3572R

Description

OSD pulse inputs.

When one of these input pins exceeds

the Vth1 level, all of the outputs go to

black limiter level; when an input pin

exceeds the Vth2 level, only the

corresponding output goes to white

limiter level.

Connect these pins to GND when not

used.

Analog 3.0V power supply.

In Y/color difference input mode, input

the Y signal to Pin 22, the R-Y signal to

Pin 23 and the B-Y signal to Pin 24.

In RGB input mode, input the G signal

to Pin 22, the R signal to Pin 23 and the

B signal to Pin 24.

Pedestal clamp these pins with external

coupling capacitors.

Sync separation circuit input, or composite

sync/horizontal sync signal input.

During input to the sync separation

circuit, input via a capacitor.

DA output.

Outputs the serial data converted to DC

voltage. The current driving capacity is

±1.0mA (max.).

REF output.

The current driving capacity (sink) is

1.6mA (max.).

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