Sony CXA2504N Datasheet

– 1 –

CXA2504N

40 pin SSOP (Plastic)

E96652A82-PS

Sample-and-Hold Driver IC for LCD

Description

The CXA2504N comprises a 6-channel sample-

and-hold circuit and driver for liquid crystal display.

Features

• Built-in sample-and-hold circuit for phase matching

• Sample-and-hold circuit slew rate 280V/µs (Typ.)

• Driver slew rate 190V/µs (Typ.)

(for 300pF load capacitance)

• Sample-and-hold circuit slew rate adjustment
function

• Driver slew rate adjustment function

Structure

Bipolar silicon monolithic IC

Applications

• Liquid crystal projectors

• Liquid crystal viewfinders

• Small liquid crystal monitors

Absolute Maximum Ratings (Ta = 25°C)

• Supply voltage VCC117V

VCC217V
VCC37V

•Input pin voltage 1 VIN1

∗1

Vcc1 V

• Input pin voltage 2 VIN2

∗2

Vcc3 V

• Digital input pin voltage VP∗3–0.3 to Vcc3 + 0.3 V

• Operating temperature Topr –25 to +75 °C

• Storage temperature Tstg –55 to +150 °C

• Allowable power dissipation (Ta ≤ 25°C)

PD 1.72

∗4

W

• Reduction rate (Ta > 25°C) 13.8∗4mW/°C

Operating Conditions

Supply voltage VCC1 15.5 ± 0.8 V

VCC2 15.5 ± 0.8 V
VCC3 5.0 ± 0.5 V

∗1

Applies to Pins 4, 5, 6, 7, 8, 13, 14, 15, 16, 24,
26, 28, 34, 36 and 38.

∗2

Applies to Pins 17 and 39.

∗3

Applies to Pins 1, 2, 3, 18, 19, 20, 21 and 40.

∗4

When mounted on 40 × 40mm2square epoxy
board.

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.

– 2 –

CXA2504N

Block Diagram

Level Shifter

S/H S/H

DR

Current

Setting

S/H S/H

DR

S/H S/H

DR

Level Shifter

Level Shifter

Level Shifter

S/H S/H

DR

Level Shifter

S/H S/H

DR

Level Shifter

S/H S/H

DR

Current
Setting

21

22

23

24

25

26

27

28

29

30

40

39

38

37

36

35

34

31

32

33

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

1

SH4

SH5

SH6

BIAS IN56

IN6

IN5

BIAS IN34

IN4

GND

GND

GND

V

CC1

IN3

BIAS IN12

IN2

IN1

I SH

SH1

SH2

SH3

GND

V

CC2

SH8

BIAS OUT6

I DR

BIAS OUT5

OUT6

BIAS OUT4

OUT5

OUT4

GND

GND

SH7

V

CC3

BIAS OUT3

BIAS OUT2

OUT3

BIAS OUT1

OUT2

OUT1

– 3 –

CXA2504N

Pin Description

Pin

No.

Symbol

Pin voltage

Equivalent circuit

Description

1
2

3
18
19
20

21

40

4

7

14

5

6

8

13

15

16

17

39

SH4
SH5
SH6
SH1
SH2
SH3

SH7

SH8

BIAS IN56

BIAS IN34

BIAS IN12

IN6

IN5

IN4

IN3

IN2

IN1

I SH

I DR

CH4 sampling pulse input
CH5 sampling pulse input
CH6 sampling pulse input
CH1 sampling pulse input
CH2 sampling pulse input
CH3 sampling pulse input
Pulse input for simultaneous

resampling of CH1, 2, and 3
Pulse input for simultaneous

resampling of CH4, 5, and 6
Inputs IN5 and 6 signal center voltage

Inputs IN3 and 4 signal center voltage

Inputs IN1and 2 signal center voltage

CH6 input

∗1

CH5 input

∗1

CH4 input

∗1

CH3 input

∗1

CH2 input

∗1

CH1 input

∗1

Sets sample-and-hold circuit current.
Sample-and-hold circuit slew rate
changes.

Sets output driver circuit current.
Output driver circuit slew rate
changes.

GND

V

CC3

21
40

2

3
18
19
20

1

100

200

200µ

VCC1

4

7

14

GND

200

20µ

5

6

13
15
16

V

CC1

GND

200

100µ

8

0V

3.0 to 5.0V

2V

11.5V

VCC3

GND

200

10k

39

17

2k

1.2V

1.2V

∗1

Do not input a signal of 2V or less to IN1 to IN6.

– 4 –

CXA2504N

Pin

No.

Symbol

Pin voltage

Equivalent circuit

Description

23

25

27

33

35

37

24

26

28

34

36

38

12
22

32

9
10
11
29
30

31

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

BIAS OUT1

BIAS OUT2

BIAS OUT3

BIAS OUT4

BIAS OUT5

BIAS OUT6

Vcc1
Vcc3

Vcc2
GND
GND
GND
GND
GND

GND

CH1 output

∗2

CH2 output

∗2

CH3 output

∗2

CH4 output

∗2

CH5 output

∗2

CH6 output

∗2

Inputs OUT1 signal center voltage

Inputs OUT2 signal center voltage

Inputs OUT3 signal center voltage

Inputs OUT4 signal center voltage

Inputs OUT5 signal center voltage

Inputs OUT6 signal center voltage
Power supply for level shifter and

S/H circuit
5V system power supply
Output driver power supply
GND

∗3

GND

∗3

GND

∗3

GND

∗3

GND

∗3

GND

∗3

GND

V

CC2

10

10

23
25
27

37

35

33

24

26

38

36

34

V

CC1

GND

200

20µ

28

15.5V

5.0V

15.5V

∗2

Power consumption varies depending on the output signal when driving load capacitance. Be careful not to
go over the package allowable power dissipation.

∗3

Pins 9 to 11 and 29 to 31 must be connected to GND potential; they must not be open.