Sony CXA1853AQ Datasheet

RGB Driver for LCD

Description

The CXA1853AQ is an RGB driver for LCD panels.

It supports a line alternative RGB drive system.

Features

• Built-in RGB signal phase matching sample-and-

hold circuit

• Effective frequency response (18MHz Typ.)

• Built-in gain and breakpoint variable 2-point γ

compensation circuit

• Built-in side black generation circuit for 4:3/16:9 aspect conversion

• Built-in VCOM voltage output circuit

Structure

Bipolar silicon monolithic IC

Applications

• Liquid crystal projectors

• Liquid crystal viewfinders

• Compact liquid crystal monitors

CXA1853AQ

80 pin QFP (Plastic)

Absolute Maximum Ratings (Ta = 25°C)

• Supply voltage VCC16 V

VCC215 V

•Input pin voltage VIN VCC1V

•Operating temperature Topr –25 to +75 °C

• Storage temperature Tstg –55 to +150 °C

• Allowable power dissipation

PD 1500 mW

Operating Conditions

• Supply voltage VCC1 4.75 to 5.25 V

VCC2 11.0 to 14.0 V

• RGB input signal voltage VIN 0.7 Vp-p

Note)

Note) Defined as the amplitude from the pedestal

level to white.

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 –

E96334-PS

Block Diagram

CXA1853AQ

4

N.C.

SH2

SH3

SH4

N.C.

60

59

57

58

GND

55

56

SIG SEL

54

GCA DETR

53

52

GCA DETG

GCA DETB

50

51

CC

V

IREF

49

48

GND

B GAIN

47

R GAIN

46

RGB GAIN

45

44

XCLP1

43

XCLP2

WHT LIM

GAM SEL

4142

SH1

PV

SH IN

GND

B CLAMP

G CLAMP

R CLAMP

RGB GAM GAIN1

R GAM GAIN1

B GAM GAIN1

RGB GAM GAIN2

R GAM GAIN2

B GAM GAIN2

RGB GAM CTR2

R GAM CTR2

B GAM CTR2

RGB GAM CTR1

R GAM CTR1

B GAM CTR1

N.C.

61

62

CC

S/H

γ AMP

S/HS/H

S/H

S/HS/H

S/H

GCA

γ AMP

CLP

63

BRT

CONT

CLP

R γ

RGB γ

B γ

CONT

CLP

γ AMP

CLP

64 65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

GAIN

CONT

EA

SW

BUFFSW

BUFF

CTRL

BLKLMT

PRG

SID

SBRT

CONT

40

BLK CENT

39

BLK LIM

38

VCOM OUT

37

SIG CENT CTR

36

VCOM CTR

35

PRG

34

GND

33

SID FRP

32

FRP

31

PRG CTR

30

SID CTR

29

SID CLP

28

R CLP

27

G CLP

26

B CLP

25

R SBRT

B SBRT

24 23

RGB SBRT

GND

22

N.C.

21

1

2

N.C.

RGB MBRT

3

N.C.

4

R MBRT

5

B MBRT

6

N.C.

8

7

GAM OUT

BIN

12

GND

13

SID OUT

14 15

2

CC

V

16

R OUT

17

G OUT

9

10

RIN

11

GIN

1

CC

V

18

B OUT

19

20

3

CC

N.C.

V

N.C.

– 2 –

CXA1853AQ

Pin Description (VCC1 = 5V, VCC2 = 13V)

Pin NO.

Symbol Pin voltage Equivalent circuit Description

1 RGB MBRT

4 R MBRT

5 B MBRT

7 GAM OUT

1.6 to 5.0V

2V

Reference level

VCC1

2k

40µA

80k

RGB signal common main brightness control. Preset internally to 3.3V.

40µA

R signal main brightness control. Preset internally to

3.3V.

200

1

∗

40µA

GND

VCC1

∗

200

4 5

37k

5k

74k

B signal main brightness

∗

GND

20µA

VCC1

100

40µA

control. Preset internally to

3.3V.

G signal output of which main bright and gamma are

7

adjusted and insert the reference signal.

GND

100

8VCC1 5V 5V power supply.

9 RIN

10 GIN

11 BIN

12 GND GND.

SID OUT SID signal output.

13

0V

9.3Vp-p Typ.

VCC1

10 11

GND

VCC2

GND

50µA

9

200

6.2k

10

13

R signal input. Input a 0.7Vp-p signal.

G signal input. Input a 0.7Vp-p signal.

B signal input. Input a 0.7Vp-p signal.

Note 1)∗ in the Pin voltage indicates external applied voltage. Note 2) Defined as the amplitude from the pedestal level to white.

Note 2)

– 3 –

CXA1853AQ

Pin NO.

14 VCC2 13V

15 R OUT R signal output.

16 G OUT G signal output.

17 B OUT B signal output.

18 VCC3 5V power supply. 22 GND GND.

23 RGB SBRT

Symbol Pin voltage Equivalent circuit Description

13V power supply.

VCC2

4.5V Typ.

10

GND

15 16 17

5V 0V

VCC3

3k

1.6 to 5.0V

200

23

∗

53µA 13µA

GND

27k

200

RGB signal common sub brightness control.

53µA

VCC3

24 B SBRT

25 R SBRT

26 B CLP

27 G CLP

28 R CLP

1.6 to 5.0V

4.7 to 8.3V

∗

24

25

∗

GND

VCC2

26

∗

27 28

GND

3k

200

26µA 40µA

200

Note)∗in the Pin voltage indicates external applied voltage.

118k

26µA

80k

2k

10µA

B signal sub brightness control. Preset internally to 3.3V.

R signal sub brightness control. Preset internally to 3.3V.

B output detection signal input.

G output detection signal input.

R output detection signal input.

– 4 –

CXA1853AQ

Pin NO.

Symbol Pin voltage Equivalent circuit Description

29 SID CLP

30 SID CTR

31 PRG CTR

4.7 to 8.3V

1.6 to 5.0V

VCC2

SID output detection signal

200

29

∗

2k

input. Use an average value detecting external capacitor with a small leak current

10µA

GND

VCC3

3k

200

30

∗

53µA 40µA

GND

VCC3

200

∗

31

35k

3k

80k

53µA

90k

absolute value and tolerance.

SID output amplitude control. Preset internally to 3.3V.

Level control for the PRG signal inserted into the SID signal.

90k

GND

VCC3

10µA

32 FRP

33

SID FRP

34 GND GND.

0V

5V

32

GND

VCC3

5V

33

GND

0V

200

10µA

200

Note)∗in the Pin voltage indicates external applied voltage.

FRP input. This pulse is used to invert the polarity of the RGB output. Output is inverted when Low, and noninverted when High. Input level: High ≥ 4V

Low ≤ 1V

FRP pulse input for SID output. This pulse is used to invert the polarity of the SID output. Output is inverted when Low, and non-inverted when High. Input level: High ≥ 4V

Low ≤ 1V

– 5 –

CXA1853AQ

Pin NO.

Symbol Pin voltage Equivalent circuit Description

35 PRG

36 VCOM CTR

37 SIG CENT CTR

5V

0V

1.6 to 5.0V

VCC3

10µA

PRG pulse input. This pulse is used to insert

35

200

the PRG signal into the SID output. Input level: High ≥ 4V

Low ≤ 1V

GND

VCC2

200

36

∗

17µA

GND

VCC2

200

37

∗

50k

80k

40µA

17µA

80k

VCOM voltage control. The VCOM voltage variable range is –0.8V to +1.3V with respect to the signal center voltage.

RGB and SID signal center voltage control.

26µA 40µA

GND

VCC2

38 VCOM OUT VCOM voltage output.

39 BLK LIM

3.4 to 9.1V

1.6 to 5.0V

∗

GND

VCC2

200

39

∗

2k

10

127k

26µA

100k

38

Limiter control for limiting the output amplitude of the RGB signal. Preset internally to

3.3V.

20µA 40µA

GND

20µA

Note)∗in the Pin voltage indicates external applied voltage.

– 6 –

CXA1853AQ

Pin NO.

Symbol Pin voltage Equivalent circuit Description

40 BLK CENT

41 WHT LIM

42 GAM SEL

1.6 to 5.0V

∗

5.0V

VCC2

2k

200

40

∗

50k

100k

RGB signal output limiter center control. Preset internally to 3.3V. When preset, the limiter center becomes equal to the

20µA 40µA

GND

VCC3

200

41

∗

20µA 40µA

GND

VCC1

200

42

2k

55k

37k

20µA

100k

20µA

RGB output center.

RGB signal white peak limiter control. Preset internally to 3.3V.

Gamma circuit control. Gamma ON when High, gamma OFF when Low. Input level: High ≥ 4V

Low ≤ 1V

GND

5V

43 XCLP2

44 XCLP1

45

RGB GAIN

0V

2.0µs

5V

0V

1.2µs

1.6 to 5.0V

VCC1

55k

200

43 44

GND

VCC4

1.5k

200

45

∗

40µA 20µA

GND

Note)∗in the Pin voltage indicates external applied voltage.

38k

40µA

200

Reference signal pulse input. Reference level when Low. Input level: High ≥ 4V

Low ≤ 1V

Clamp pulse input. Clamped when Low. Input level: High ≥ 4V

Low ≤ 1V

Gain control for RGB signal common variable gain amplifier.

– 7 –

CXA1853AQ

Pin NO.

46 R GAIN

Symbol Pin voltage Equivalent circuit Description

1.6 to 5.0V

VCC4

200

1k

48k

80k

∗

46 47

Gain control for R signal variable gain amplifier. Preset internally to 3.3V.

Gain control for B signal

47 B GAIN

1.6 to 5.0V

48 GND GND.

49 IREF

50 VCC4 5V power supply.

1.2V

5.0V

∗

GND

0V

VCC4

80µA 40µA

80µA

49

GND

2k

200

variable gain amplifier. Preset internally to 3.3V.

5k 5k

Sample-and -hold circuit current setting.

10k

51 GCADET B

52 GCADET G

53 GCADET R

54 SIG SEL

55 GND 56 SH4

57 SH3

58 SH2

61 SH1

1.8V Typ.

0 to 5.0V

0V

5V

0V

VCC4

40µA

51 52 53

6.2k

GND

VCC4

55k

∗

54

200

B GCA circuit clamp detection.

G GCA circuit clamp detection.

R GCA circuit clamp detection.

Selection of input signal to Sample-and -hold circuit. R and B signals selected when High, G signal selected when Low. Input level: High ≥ 4V

GND

Low ≤ 1V

GND.

PVCC

56 57 58

59

GND

100µA

200

100

Sample-and-hold pulse input. Input level: High ≥ 3.0V

Low ≤ 1.0V Sampling when High, hold when Low.

62 PVCC

5V

Note)∗in the Pin voltage indicates external applied voltage.

– 8 –

5V power supply.

CXA1853AQ

Pin NO.

63 SH IN

64 GND GND.

65 B CLAMP B signal clamp detection.

66 G CLAMP G signal clamp detection.

67 R CLAMP R signal clamp detection.

Symbol Pin voltage Equivalent circuit Description

2.25V

Reference level

VCC4

63

GND

200

6.2k

100µA

Sample-and-hold circuit input.

0V

VCC1

40µA

65

2.1V Typ.

66 67

GND

68

69

70

71

RGB GAM GAIN 1

R GAM GAIN 1

B GAM GAIN 1

RGB GAM GAIN 2

1.6 to 5.0V

VCC1

1k

200

68

∗

40µA

GND

VCC1

∗

200

69

70

37k

1k

37k

40µA

200

80k

RGB signal common black side voltage gain control.

40µA

R signal black side voltage gain control. Preset internally to 3.3V.

B signal black side voltage

∗

GND

VCC1

71

∗

40µA 40µA

40µA

1k

200

37k

200

gain control. Preset internally to 3.3V.

RGB signal common white side voltage gain control.

40µA

GND

Note)∗in the Pin voltage indicates external applied voltage.

– 9 –

40µA

CXA1853AQ

Pin NO.

72

73

74

75

76

Symbol Pin voltage Equivalent circuit Description

R GAM GAIN 2

B GAM GAIN 2

RGB GAM CTR 2

R GAM CTR 2

B GAM CTR 2

1.6 to 5.0V

VCC1

∗

72 73

∗

GND

VCC1

74

∗

GND

VCC1

∗

75

76

∗

GND

1k

200

37k

40µA 40µA

1k

200

37k

40µA 40µA

3k

200

74k

20µA 40µA

80k

40µA

200

40µA

80k

20µA

R signal white side voltage gain control. Preset internally to 3.3V.

B signal white side voltage gain control. Preset internally to 3.3V.

RGB signal common white side voltage gain change point control.

R signal white side voltage gain change point control. Preset internally to 3.3V.

B signal white side voltage gain change point control. Preset internally to 3.3V.

VCC1

1k

200

77

∗

40µA 40µA

GND

VCC1

∗

78 79

∗

GND

3k

200

20µA 40µA

77

78

79

RGB GAM CTR 1

R GAM CTR 1

B GAM CTR 1

1.6 to 5.0V

Note)∗in the Pin voltage indicates external applied voltage.

37k

74k

40µA

20µA

200

80k

RGB signal common black side voltage gain change point control.

R signal black side voltage gain change point control. Preset internally to 3.3V.

B signal black side voltage gain change point control. Preset internally to 3.3V.

– 10 –

Electrical Characteristics

Unless otherwise specified: Ta = 25°C, VCC1 = VCC3 = VCC4 = PVCC = 5V, VCC2 = 13V

SW1 = OFF, SW4 = OFF, SW5 = OFF, SW9 = a, SW10 = a, SW11 = a, SW24 = OFF, SW25 = OFF, SW26 = a, SW27 = a, SW28 = a, SW29 = a, SW30 = OFF, SW36 = OFF, SW37 = OFF, SW39 = OFF, SW40 = OFF, SW41 = OFF, SW46 = OFF, SW47 = OFF, SW51 = a, SW52 = a, SW53 = a, SW63 = a, SW65 = a, SW66 = a, SW67 = a, SW69 = OFF, SW70 = OFF, SW72 = OFF, SW73 = OFF, SW75 = OFF, SW76 = OFF, SW78 = OFF, SW79 = OFF, V23 = 3.1V, V31 = 3.5V, V42 = 5.0V, V45 = 2.8V, V54 = 5.0V, V68 = 1.6V, V71 = 1.6V, V74 = 1.6V, V77 = 5.0V

Set (R IN), (G IN), (B IN) and (TEST IN) = 0V, (SH1), (SH2), (SH3) and (SH4) = 5V, and input SG4 to (FRP) and (SID FRP), SG5 to (PRG), SG2 to (XCLP2) and SG3 to (XCLP1).

CXA1853AQ

No. Item Symbol Measurement conditions Unit

1

Current consumption (1)

2

Current consumption (2)

3

Current consumption (3)

4

Current consumption (4)

5

Current consumption (5)

6

R IN pin current “Z”

7

R IN pin current “H”

8

R IN pin current “L”

9

G IN pin current “Z”

10

G IN pin current “H”

11

G IN pin current “L”

12

B IN pin current “Z”

13

B IN pin current “H”

14

B IN pin current “L”

15

RGB SBRT pin current

16

B CLP pin current

I

CC1

ICC2 ICC3 ICC4 ICC5 IZ9 IH9 IL9 IZ10 IH10 IL10 IZ11 IH11 IL11 I23 I26

Measure the current entering Pin 8. Measure the current entering Pin 14. Measure the current entering Pin 18. Measure the current entering Pin 50. Measure the current entering Pin 62. SW9 → b, (XCLP1) = 5V, V9 = 2.4V SW9 → b, (XCLP1) = 0V, V9 = 3.4V SW9 → b, (XCLP1) = 0V, V9 = 1.4V SW10 → b, (XCLP1) = 5V, V10 = 2.4V SW10 → b, (XCLP1) = 0V, V10 = 3.4V SW10 → b, (XCLP1) = 0V, V10 = 1.4V SW11 → b, (XCLP1) = 5V, V11 = 2.4V SW11 → b, (XCLP1) = 0V, V11 = 3.4V SW11 → b, (XCLP1) = 0V, V11 = 1.4V V23 = 5.0V SW26 → b, V26 = 7.0V

Min. Typ. Max.

—

30

44

—

11

18

—

6

10

—

29

43

—

4

7

–1.5

–0.2

13 —

13 — —

0

25

–25

0

25

–25

0

25

–25

2.5 0

1.5 —

–13

1.5 —

–13

1.5 —

–13

6

0.2

mA mA mA mA mA

µA µA µA µA µA µA µA µA µA µA µA

17

G CLP pin current

18

R CLP pin current

19

SID CLP pin current

20

PRG CTR pin current

21

FRP pin current “H”

22

FRP pin current “L”

23

SID FRP pin current “H”

24

SID FRP pin current “L”

25

PRG pin current “H”

26

PRG pin current “L”

27

GAM SEL pin current “H”

I27 I28 I29 I31 IH32 IL32 IH33 IL33 IH35 IL35 IH42

SW27 → b, V27 = 7.0V SW28 → b, V28 = 7.0V SW29 → b, V29 = 7.0V V31 = 5.0V (FRP) = 5V (FRP) = 0V (SID FRP) = 5V (SID FRP) = 0V (PRG) = 5V (PRG) = 0V V42 = 5V

– 11 –

–0.2 –0.2 –0.2

— –0.1 –0.3 –0.1 –0.3 –0.1 –0.3 –0.1

0 0 0

0.3 0

–0.1

0

–0.1

0

–0.1

0

0.2

0.8

0.1 —

0.1

µA µA µA µA µA µA µA µA µA µA µA

CXA1853AQ

No. Item Symbol Measurement conditions Min. Typ. Max. Unit

28

GAM SEL pin current “L”

29

XCLP2 pin current “H”

30

XCLP2 pin current “L”

31

XCLP1 pin current “H”

32

XCLP1 pin current “L”

33

RGB GAIN pin current

34

GCA DET B pin current “Z”

35

GCA DET B pin current “H”

36

GCA DET B pin current “L”

37

GCA DET G pin current “Z”

38

GCA DET G pin current “H”

39

GCA DET G pin current “L”

40

GCA DET R pin current “Z”

IL42 IH43 IL43 IH44 IL44 I45 IZ51 IH51 IL51 IZ52 IH52 IL52 IZ53

V42 = 0V (XCLP2) = 5V (XCLP2) = 0V (XCLP1) = 5V (XCLP1) = 0V V45 = 5V SW51 → b, (XCLP1) = 5V, V51 = 2.0V SW51 → b, (XCLP1) = 0V, V51 = 3.0V SW51 → b, (XCLP1) = 0V, V51 = 1.0V SW52 → b, (XCLP1) = 5V, V52 = 2.0V SW52 → b, (XCLP1) = 5V, V52 = 3.0V SW52 → b, (XCLP1) = 5V, V52 = 1.0V SW53 → b, (XCLP1) = 5V, V53 = 2.0V

—

–0.1

— –0.1 –1.0

— –0.5

15

— –0.5

15

— –0.5

–1.7

0

–1.0

0

–0.2

0.5 0

30 30

0

30

–30

0

–0.4

0.1

–0.3

0.1 —

1.3

0.5 —

–15

0.5 —

–15

0.5

µA µA µA µA µA µA µA µA µA µA µA µA µA

41

GCA DET R pin current “H”

42

GCA DET R pin current “L”

43

SIG SEL pin current “H”

44

SIG SEL pin current “L”

45

SH4 pin current “H”

46

SH4 pin current “L”

47

SH3 pin current “H”

48

SH3 pin current “L”

49

SH2 pin current “H”

50

SH2 pin current “L”

51

SH1 pin current “H”

52

SH1 pin current “L”

53

SH IN pin current “Z”

54

SH IN pin current “H”

55

SH IN pin current “L”

56

B CLAMP pin current “Z”

57

B CLAMP pin current “H”

IH53 IL53 I54H I54L I56H I56L I57H I57L I58H I58L I61H I61L IZ63 IH63 IL63 IZ65 IH65

SW53 → b, (XCLP1) = 5V, V53 = 3.0V SW53 → b, (XCLP1) = 5V, V53 = 1.0V V54 = 5V V54 = 0V (SH4) = 5V (SH4) = 0V (SH3) = 5V (SH3) = 0V (SH2) = 5V (SH2) = 0V (SH1) = 5V (SH1) = 0V SW63 → b, (XCLP1) = 5V, V63 = 2.2V SW63 → b, (XCLP1) = 0V, V63 = 3.2V SW63 → b, (XCLP1) = 0V, V63 = 1.2V SW65 → b, (XCLP1) = 5V, V65 = 2.0V SW65 → b, (XCLP1) = 0V, V65 = 3.0V

15

— –0.1 –3.0 –0.1 –5.0 –0.1 –5.0 –0.1 –5.0 –0.1 –5.0 –1.5

13

— –0.5

15

30

–30

0

–1.0

0

–2.0

0

–2.0

0

–2.0

0

–2.0

0

25

–25

0

40

—

–15

0.1 —

1.5 —

–13

0.5 —

µA µA µA µA µA µA µA µA µA µA µA µA µA µA µA µA µA

58

B CLAMP pin current “L”

59

G CLAMP pin current “Z”

60

G CLAMP pin current “H”

61

G CLAMP pin current “L”

62

R CLAMP pin current “Z”

63

R CLAMP pin current “H”

64

R CLAMP pin current “L”

65

RGB GAM GAIN1 pin current

IL65 IZ66 IH66 IL66 IZ67 IH67 IL67 I68

SW65 → b, (XCLP1) = 0V, V65 = 1.0V SW66 → b, (XCLP1) = 5V, V66 = 2.0V SW66 → b, (XCLP1) = 0V, V66 = 3.0V SW66 → b, (XCLP1) = 0V, V66 = 1.0V SW67 → b, (XCLP1) = 5V, V67 = 2.0V SW67 → b, (XCLP1) = 0V, V67 = 3.0V SW67 → b, (XCLP1) = 0V, V67 = 1.0V V68 = 5.0V

– 12 –

—

–0.5

15 —

–0.5

15 — —

–40

0

40

–40

0

40

–40

0.5

–15

0.5 —

–15

0.5 —

–15

1.3

µA µA µA µA µA µA µA µA