Datasheet CXA1853Q Datasheet (Sony)

RGB Driver for LCD

For the availability of this product, please contact the sales office.

Description

The CXA1853Q 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

CXA1853Q

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 –

E95825-PP

Block Diagram

SH1

PV

CC

TEST 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.

CXA1853Q

4

N.C.

SH2

SH3

SH4

N.C.

60

59

61

62

63

BRT

CONT

CLP

Rγ

RGBγ

Bγ

CONT

64 65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

57

58

γAMP

CLP

GND

55

56

SIG SEL

54

γAMP

CLP

GCA DETR

53

52

S/H

GCA DETG

S/HS/H

S/H

S/HS/H

S/H

51

S/H

γAMP

CLP

CC

GCA DETB

V

50

GCA

49

IREF

48

GND

CONT

47

GAIN

SW

B GAIN

46

EA

R GAIN

45

BUFFSW

BUFF

RGB GAIN

XCLP1

44

XCLP2

43

BUFF

WHT LIM

TEST SEL

4142

CTRL

BLKLMT

PRG

SID

SBRT

CONT

BLK CENT

40

BLK LIM

39

VCOM OUT

38

SIG CENT CTR

37

VCOM CTR

36

PRG

35

GND

34

SID FRP

33

FRP

32

PRG CTR

31

SID CTR

30

SID CLP

29

R CLP

28

G CLP

27

B CLP

26

R SBRT

25

B SBRT

24

RGB SBRT

23

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

1

CC

V

TEST OUT

9

RIN

10

GIN

– 2 –

13

12

11

BIN

GND

14 15

2

CC

V

SID OUT

16

R OUT

17

G OUT

18

B OUT

19

20

3

CC

N.C.

V

N.C.

CXA1853Q

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

Pin NO.

Symbol Pin voltage Equivalent circuit Description

1 RGB MBRT

4 R MBRT

5 B MBRT

7 TEST OUT

1.6 to 5.0V

2V

Reference level

VCC1

2k

40µA

80k

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

R signal main brightness control. Preset internally to

3.3V.

200

1

∗

40µA 40µA

GND

VCC1

∗

200

4 5

37k

5k

74k

B signal main brightness

∗

GND

20µA 40µA

20µA

VCC1

100

control. Preset internally to

3.3V.

Measurement output.

7

This pin should be left open.

100

GND

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

9 10 11

GND

VCC2

GND

50µA

200

6.2k

10

13

10

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 2)

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

– 3 –

CXA1853Q

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 –

CXA1853Q

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

32 FRP

0V

5V

VCC3

10µA

200

32

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

GND

VCC3

10µA

33

SID FRP

34 GND GND.

0V

5V

33

GND

0V

200

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

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 –

CXA1853Q

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 40µA

GND

VCC2

200

37

50k

∗

50k

80k

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 –

CXA1853Q

Pin NO.

Symbol Pin voltage Equivalent circuit Description

40 BLK CENT

41 WHT LIM

1.6 to 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

2k

55k

37k

20µA

100k

20µA

RGB output center.

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

42 TEST SEL

43 XCLP2

44 XCLP1

45

RGB GAIN

∗

5.0V

5V

0V

2.0µs

5V

0V

1.2µs

1.6 to 5.0V

200

42

Measurement selector switch. This pin should normally be set to 5V.

GND

Reference signal pulse input.

VCC1

55k

200

43

44

Reference level when Low. Input level: High ≥ 4V

Low ≤ 1V

Clamp pulse input. Clamped when Low.

GND

Input level: High ≥ 4V

Low ≤ 1V

VCC4

1.5k

200

45

∗

38k

200

Gain control for RGB signal common variable gain amplifier.

40µA 20µA

GND

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

– 7 –

40µA

CXA1853Q

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

80µA 40µA

80µA

VCC4

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

B GCA circuit clamp detection.

G GCA circuit clamp detection.

R GCA circuit clamp detection.

VCC4

55k

∗

54

200

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.

CXA1853Q

Pin NO.

63 TEST 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

VCC4

100µA

63

200

6.2k

GND

Measurement input. This pin should be left open.

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 40µA

GND

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

– 9 –

40µA

CXA1853Q

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).

CXA1853Q

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

TEST 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

CXA1853Q

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

28

TEST 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

TEST IN pin current "Z"

54

TEST IN pin current "H"

55

TEST 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

CXA1853Q

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

66

RGB GAM GAIN2 pin current

67

RGB GAM CTR2 pin current

68

RGB GAM CTR1 pin current

69

RIN pin voltage

70

GIN pin voltage

71

BIN pin voltage

72

B SBRT pin voltage

73

R SBRT pin voltage

74

SID CTR pin voltage

75

VCOM CTR pin voltage

76

SIG CENT CTR pin voltage

77

BLK LIM pin voltage

78

BLK CENT pin voltage

I71 I74 I77 V9 V10 V11 V24 V25 V30 V36 V37 V39 V40

V71 = 5.0V V74 = 5.0V V77 = 5.0V

— — —

1.3

2.9

0.5

1.7

3.3

1.3

2.1

3.7

µA µA µA

V V V V V V V V V V

79

WHT LIM pin voltage

80

R GAIN pin voltage

81

B GAIN pin voltage

82

IREF pin voltage

83

GCA DET B pin voltage

84

GCA DET G pin voltage

85

GCA DET R pin voltage

86

TEST IN pin voltage

87

B CLAMP pin voltage

88

G CLAMP pin voltage

89

R CLAMP pin voltage

90

R GAM GAIN1 pin voltage

91

B GAM GAIN1 pin voltage

92

R GAM GAIN2 pin voltage

93

B GAM GAIN2 pin voltage

94

R GAM CTR2 pin voltage

95

B GAM CTR2 pin voltage

V41 V46 V47 V49 V51 V52 V53 V63 V65 V66 V67 V69 V70 V72 V73 V75 V76

2.9

0.8

1.2

1.9

1.6

2.9

3.3

1.2

1.8

2.3

2.1

3.3

3.7

1.6

2.4

2.7

2.6

3.7

V V V V V V V V V V V V V V V V V

96

R GAM CTR1 pin voltage

97

B GAM CTR1 pin voltage

98

RGB MBRT pin voltage

99

R MBRT pin voltage

100

B MBRT pin voltage RGB MBRT

101

input impedance

V78 V79 V1 V4 V5

Z1

– 13 –

2.9

45

3.3

80

3.7

110

V V V V V

kΩ

CXA1853Q

No. Item Symbol Measurement conditions Unit

R MBRT

102

input impedance B MBRT

103

input impedance B SBRT

104

input impedance R SBRT

105

input impedance SID CTR

106

input impedance VCOM CTR

107

input impedance SIG CENT CTR

108

input impedance BLK LIM

109

input impedance BLK CENT

110

input impedance WHT LIM

111

input impedance

Z4

Z5

Z24

Z25

Z30

Z36

Z37

Z39

Z40

Z41

Min. Typ. Max.

110

80

45

110

80

45

110

80

45

110

80

45

110

80

45

110

80

45

110

80

45

150

100

55

150

100

55

150

100

55

kΩ

R GAIN

112

input impedance B GAIN

113

input impedance R GAM GAIN1

114

input impedance B GAM GAIN1

115

input impedance R GAM GAIN2

116

input impedance B GAM GAIN2

117

input impedance R GAM CTR2

118

input impedance B GAM CTR2

119

input impedance R GAM CTR1

120

input impedance B GAM CTR1

121

input impedance

Z46

Z47

Z69

Z70

Z72

Z73

Z75

Z76

Z78

Z79

45

80

110

kΩ

– 14 –

CXA1853Q

No. Item Symbol Measurement conditions Unit

Min. Typ. Max.

Set SW41 → ON, V41 = 1.6V, V42 = 0V, V54 = 0V and input SG1 (0 dB) to (TEST IN). Then adjust V45 so that the non-inverted output amplitude (black to white) at TP16 is 5 times the input signal amplitude and label

RGB GAIN

122

adjustment range (1)

∆G

CS1

this as V Input SG1 (–6 dB) to (TEST IN) and label the non-inverted output amplitudes (black to white) at TP15, TP16 and TP17 with V45 = V V amplitudes as V

I.

I as

RST, VGST and VBST, and the inverted output

RSTA, VGSTA and VBSTA,

4.0

6.0

—

dB

respectively. Next, label the non-inverted output amplitudes (black to white) at TP15, TP16 and TP17 with V45 = 5.0V as V inverted output amplitudes as V

RSM, VGSM and VBSM, and the

RSMA, VGSMA

and VBSMA, respectively. Next, label the non-inverted output amplitudes (black to white) at TP15, TP16 and TP17 with

RGB GAIN

123

adjustment range (2)

∆GCS2

V45 = 1.6V as V inverted output amplitudes as V and VBSNA, respectively. ∆G

CS1 = 20log (VRSM (A)/VRST (A))

= 20log (V = 20log (V

∆G

CS2 = 20log (VRSN (A)/VRST (A))

= 20log (V = 20log (V

RSN, VGSN and VBSN, and the

RSNA, VGSNA

GSM (A)/VGST (A)) BSM (A)/VBST (A))

GSN (A)/VGST (A)) BSN (A)/VBST (A))

—

–6.0

–4.0

dB

R GAIN

124

adjustment range (1)

R GAIN

125

adjustment range (2)

B GAIN

126

adjustment range (1)

B GAIN

127

adjustment range (2)

∆GRS1

∆GRS2

∆GBS1

∆GBS2

Set V42 = 0V, V54 = 0V, input SG1 (–6dB) to (TEST IN), and set V45 = V

I, SW46 → ON,

SW41 → ON, V41 = 1.6V and V46 = 5.0V. Then label the non-inverted output amplitude (black to white) at TP15 as V inverted output amplitude as V

RSTM and the

RSTMA.

Next, label the non-inverted output amplitude (black to white) at TP15 with V46 = 1.6V as V

RSTN and the inverted output amplitude as

V

RSTNA.

∆G

RS1 = 20log (VRSTM (A)/VGST (A))

∆G

RS2 = 20log (VRSTN (A)/VGST (A))

Set V42 = 0V, V54 = 0V, input SG1 (–6dB) to (TEST IN), and set V45 = V

I, SW47 → ON,

SW41 → ON, V41 = 1.6V and V47 = 5.0V. Then label the non-inverted output amplitude (black to white) at TP17 as V inverted output amplitude as V

BSTM and the

BSTMA.

Next, label the non-inverted output amplitude (black to white) at TP17 with V47 = 1.6V as V

BSTN and the inverted output amplitude as

V

BSTNA.

∆G

BS1 = 20log (VBSTM (A)/VGST (A))

∆G

BS2 = 20log (VBSTN (A)/VGST (A))

2.5

—

2.5

—

4.6

–4.6

4.6

–4.6

—

–2.5

—

–2.5

dB

– 15 –

CXA1853Q

No. Item Symbol Measurement conditions Unit

Min. Typ. Max.

Label the DC potentials at TP9, TP10 and

RGB MBRT

128

adjustment range (1)

∆V

BM1

TP11 as V Next, label the DC potentials at TP9, TP10 and TP11 with SW1 → ON and V1 = 5.0V

RT, VGT and VBT, respectively.

—

–0.35

–0.30

V

as VRN, VGN and VBN, respectively. Next, label the DC potentials at TP9, TP10

RGB MBRT

129

adjustment range (2)

∆VBM2

and TP11 with V1 = 1.6 V as V V

BM, respectively.

∆V

BM1 =VRN – VRT, VGN – VGT,

V

BN – VBT

RM, VGM and

0.30

0.35

—

V

∆VBM2 =VRM – VRT, VGM – VGT,

V

BM – VBT

R MBRT

130

adjustment range (1)

∆VBR1

Label the DC potential at TP9 with SW4 → ON and V4 = 5.0V as V

RTN.

—

–0.16

–0.12

V

Next, label the DC potential at TP9 with V4 =

R MBRT

131

adjustment range (2)

B MBRT

132

adjustment range (1)

∆VBR2

∆VBB1

1.6V as V

∆V ∆VBR2 =VRTM – VGT

Label the DC potential at TP11 with SW5 → ON and V5 = 5.0V as V

RTM.

BR1 =VRTN – VGT

BTN.

0.12

—

0.16

–0.16

—

–0.12

V

Next, label the DC potential at TP11 with V5 =

B MBRT

133

adjustment range (2)

∆VBB2

1.6V as V

∆V ∆VBB2 =VBTM – VGT

BTM.

BB1 =VBTN – VGT

0.12

0.16

—

V

Maximum RGB output

134

amplitude

RGB SBRT

135

adjustment range (1)

RGB SBRT

136

adjustment range (2)

∆VBMAX

VSBN

VSBM

Set SW39 → ON, V39 = 1.6V, V45 = 5.0V and V23 = 5.0V. Then measure the amplitudes (black to black) at TP15, TP16 and TP17.

Set SW39 → ON and V39 = 1.6V. Then label the non-inverted reference level potentials at TP15, TP16 and TP17 as V V

SGT and VSBT, and the inverted reference

level potentials as V

SRTA, VSGTA and VSBTA,

SRT,

respectively. Next, label the non-inverted reference level potentials at TP15, TP16 and TP17 with V23 =

1.6V as V inverted reference level potentials as V V

SGNA and VSBNA, respectively.

SRN, VSGN and VSBN, and the

SRNA,

Next, label the non-inverted reference level potentials at TP15, TP16 and TP17 with V23 = 5.0V as V

SRM, VSGM and VSBM, and

the inverted reference level potentials as V

SRMA, VSGMA and VSBMA, respectively.

V

SBN =VSRNA – VSRN, VSGNA – VSGN,

V

SBNA – VSBN

VSBM =VSRMA – VSRM, VSGMA – VSGM,

V

SBMA – VSBM

10.0

—

8.5

10.7

–0.7

10.7

—

Vp-p

V

0

V

– 16 –

CXA1853Q

No. Item Symbol Measurement conditions Unit

Min. Typ. Max.

Set SW39 → ON, V39 = 1.6V, SW25 → ON and

R SBRT

137

adjustment range (1)

∆V

SSR1

V25 = 1.6V. Then label the non-inverted reference level potential at TP15 as V reference level potential as V

SRTN and the inverted

SRTNA.

—

–1.8

–1.2

V

Next, label the non-inverted reference level potential

R SBRT

138

adjustment range (2)

∆VSSR2

at TP15 with V25 = 5.0V as V reference level potential as V ∆V

SSR1 =(VSRTNA – VSRTN)

– (V

SGTA – VSGT)

∆V

SSR2 =(VSRTMA – VSRTM)

– (V

SGTA – VSGT)

SRTM and the inverted

SRTMA.

1.2

1.8

—

V

Set SW39 → ON, V39 = 1.6V, SW24 → ON and

B SBRT

139

adjustment range (1)

∆VSSB1

V24 = 1.6V. Then label the non-inverted reference level potential at TP17 as V reference level potential as V

SBTN and the inverted

SBTNA.

—

–1.8

–1.2

V

Next, label the non-inverted reference level potential

B SBRT

140

adjustment range (2)

∆VSSB2

at TP17 with V24 = 5.0V as V reference level potential as V ∆V

SSB1 =(VSBTNA – VSBTN)

– (V

SGTA – VSGT)

∆V

SSB2 =(VSBTMA – VSBTM)

– (V

SGTA – VSGT)

SBTM and the inverted

SBTMA.

1.2

1.8

—

V

Reference level difference

141

between R, G and B

Gain difference between

142

R, G and B

Difference between the inverted and non-inverted

143

gain

Difference between the

144

reference level and 50 IRE

∆VS

∆GRGB

∆GINV

∆V50I

∆VS =VSRT (A) – VSGT (A),

V

SGT (A) – VSBT (A),

V

SBT (A) – VSRT (A)

Set V45 = VI, SW41 → ON, V41 = 1.6V and input SG1 (0dB) to (R IN), (G IN) and (B IN). Then label the non-inverted output amplitudes (black to white) at TP15, TP16 and TP17 as V

RVT, VGVT

and VBVT, and the inverted output amplitudes as V

RVTA, VGVTA and VBVTA, respectively.

∆G

RGB = 20log (VBVT/VRVT),

20log (V

RVT/VGVT),

20log (V

GVT/VBVT)

∆GINV = 20log (VRVT/VRVTA),

20log (V

GVT/VGVTA),

20log (V

BVT/VBVTA)

Set V45 = VI. Then label the non-inverted output signal reference level amplitudes at TP15, TP16 and TP17 as V

SR, VSG

and VSB, and the inverted output signal reference level amplitudes as V V

50I =VSR (A) – VRVT (A)/2

=V =V

SRA, VSGA and VSBA, respectively.

SG (A) – VGVT (A)/2 SB (A) – VBVT (A)/2

–200

–0.8

–0.7

–150

0

200

mV

0

0.8

0

0.7

0

150

dB

mV

Gamma intermediate

145

region gain

Minimum RGB gamma

146

black side gain

GGN

GCBN

(See "Black Side Gamma Measurement Method".) Set V45 = V

I.

Then measure the minimum gain GN of the noninverted and inverted signals at TP15, TP16 and TP17. G

GN = 20 log (GN)

(See "Black Side Gamma Measurement Method".) Set V45 = VI, V23 = 1.6V and V77 = 1.6V. Then obtain the gamma gain of the non-inverted and inverted signals at TP15, TP16 and TP17.

– 17 –

8.0

–1.5

9.8

0

12.0

1.5

dB

CXA1853Q

No. Item Symbol Measurement conditions Unit

Min. Typ. Max.

(See "Black Side Gamma Measurement Method".)

Maximum RGB gamma

147

black side gain

∆G

GBM

Set V45 = V

1.6V. Then obtain the gamma gain of the non-inverted

I, V23 = 1.6V, V68 = 5.0V and V77 =

15

18

—

dB

and inverted signals at TP15, TP16 and TP17. (See "Black Side Gamma Measurement Method".)

Set V45 = V

I, V23 = 1.6V, V68 = 3.0V and V77 =

1.6V.

Gamma black side gain difference between R, G

148

and B

∆GGBT

Then label the non-inverted side gamma gain at TP15, TP16 and TP17 as G and the inverted side gamma gain as G G

BGTA and GBBTA, respectively.

∆G

GBT =GBRT (A) – GBGT (A)

BRT, GBGT and GBBT,

BRTA,

–1.0

0

1.0

dB

=GBGT (A) – GBBT (A) =GBBT (A) – GBRT (A)

(See "Black Side Gamma Measurement Method".)

R gamma black side sub

149

gain adjustment range (1)

∆GGBR1

Set V45 = V SW69 → ON and V69 = 1.6V. Then measure the gamma gain at TP15, and label the non-inverted side as G side as G

I, V23 = 1.6V, V68 = 3.0V, V77 = 1.6V,

BRN and the inverted

BRNA

—

–4.5

–2.5

dB

∆GGBR1 = GBRN (A) – GBGT (A)

R gamma black side sub

150

gain adjustment range (2)

∆GGBR2

Next, measure the gamma gain at TP15 with V69 = 5.0V, and label the non-inverted side as G

BRM and the inverted side as GBRMA.

2.5

4.5

—

dB

∆GGBR2 = GBRM (A) – GBGT (A)

B gamma black side sub

151

gain adjustment range (1)

B gamma black side sub

152

gain adjustment range (2)

Minimum RGB gamma

153

white side gain

Maximum RGB gamma

154

white side gain

∆GGBB1

∆GGBB2

GGWN

(See "Black Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V68 = 3.0V, V77 = 1.6V,

SW70 → ON and V70 = 1.6V. Then measure the gamma gain at TP17, and label the non-inverted side as G side as G ∆G

BBNA.

GBB1 = GBBN (A) – GBGT (A)

BBN and the inverted

Next, measure the gamma gain at TP17 with V70 = 5.0V, and label the non-inverted side as G

BBM and the inverted side as GBBMA.

∆G

GBB2 = GBBM (A) – GBGT (A)

(See "White Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, SW41 →ON, V41 =

1.6V, V71 = 1.6V and V74 = 5.0V. Then measure the gamma gain of the non-inverted and inverted sides at TP15, TP16 and TP17.

(See "White Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, SW41 →ON, V41 =

1.6V, V71 = 5.0V and V74 = 5.0V. Then measure the gamma gain of the non-inverted and inverted sides at TP15, TP16 and TP17.

—

2.5

–1.5

15

–4.5

4.5

0

18

–2.5

—

1.5

—

dB

– 18 –

CXA1853Q

No. Item Symbol Measurement conditions Unit

Min. Typ. Max.

(See "White Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V71 = 3.0V, V74 =

5.0V, SW41 → ON and V41 = 1.6V. Then label the non-inverted side gamma gain

Gamma white side gain

155

difference between R, G and B

∆G

GWT

at TP15, TP16 and TP17 as G G

WBT, and the inverted side gamma gain as

G

WRTA, GWGTA and GWBTA, respectively.

∆G

GWT =GWRT (A) – GWGT (A)

WRT, GWGT and

–1.0

0

1.0

dB

=GWGT (A) – GWBT (A) =GWBT (A) – GWRT (A)

(See "White Side Gamma Measurement Method".)

R gamma white side sub

156

gain adjustment range (1)

∆GGWR1

Set V45 = V

5.0V, SW41 → ON, V41 = 1.6V, SW72 → ON and V72 = 1.6V.

I, V23 = 1.6V, V71 = 3.0V, V74 =

—

–4.5

–2.5

dB

Then measure the gamma gain at TP15, and

R gamma white side sub

157

gain adjustment range (2)

∆GGWR2

label the non-inverted side as G inverted side as G ∆G

GWR1 = GWRN (A) – GWGT (A)

WRNA.

Next, measure the gamma gain at TP15 with V72 = 5.0V, and label the non-inverted side as G

WRM and the inverted side as GWRMA.

∆G

GWR2 = GWRM (A) – GWGT (A)

WRN and the

2.5

4.5

—

dB

B gamma white side sub

158

gain adjustment range (1)

B gamma white side sub

159

gain adjustment range (2)

Minimum RGB gamma

160

black side breakpoint value

Maximum RGB gamma

161

black side breakpoint value

∆GGWB1

∆GGWB2

PGBN

PGBM

(See "White Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V71 = 3.0V, V74 =

5.0V, SW41 → ON, V41 = 1.6V, SW73 → ON and V73 = 1.6V. Then measure the gamma gain at TP17, and label the non-inverted side as G inverted side as G ∆G

GWB1 = GWBN (A) – GWGT (A)

WBNA.

WBN and the

Next, measure the gamma gain at TP17 with V73 = 5.0V, and label the non-inverted side as G

WBM and the inverted side as GWBMA.

∆G

GWB2 = GWBM (A) – GWGT (A)

(See "Black Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V68 = 5.0V and V77 =

1.6V. Then measure the gamma breakpoints of the non-inverted and inverted sides at TP15, TP16 and TP17.

(See "Black Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V68 = 5.0V, V77 =

5.0V, SW1 → ON and V1 = 4.0V. Then measure the gamma breakpoints of the non-inverted and inverted sides at TP15, TP16 and TP17.

—

2.5

–0.45

—

–4.5

4.5

–0.15

–1.05

–2.5

—

–0.75

dB

V

– 19 –

CXA1853Q

No. Item Symbol Measurement conditions Unit

Min. Typ. Max.

(See "Black Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V68 = 5.0V and V77 = 3.3V.

Then measure the gamma breakpoints at TP15,

Gamma black side

162

breakpoint difference between R, G and B

∆P

GBT

TP16 and TP17 and label the non-inverted side as P

GBRT, PGBGT and PGBBT, and the inverted

side as P ∆P

GBRTA, PGBGTA and PGBBTA, respectively.

GBT =PGBRT (A) – PGBGT (A)

–0.15

0

0.15

V

=PGBGT (A) – PGBBT (A) =PGBBT (A) – PGBRT (A)

(See "Black Side Gamma Measurement Method".)

R gamma black side

163

breakpoint sub adjustment range (1)

R gamma black side breakpoint sub adjustment

164

range (2)

∆PGBR1

∆PGBR2

Set V45 = V SW78 → ON and V78 = 1.6V. Then measure the gamma breakpoint at TP15, and label the non-inverted side as P inverted side as P ∆P

GBR1 = PGBRN (A) – PGBGT (A)

Next, measure the gamma breakpoint at TP15 with V78 = 5.0V, SW1 → ON and V1 = 4.0V, and label the non-inverted side as P side as P ∆P

GBR2 = PGBRM (A) – PGBGT (A)

I, V23 = 1.6V, V68 = 5.0V, V77 = 3.3V,

GBRN and the

GBRNA.

GBRM and the inverted

GBMA.

0.15

—

0.3

–0.3

—

–0.15

V

(See "Black Side Gamma Measurement Method".)

B gamma black side breakpoint sub adjustment

165

range (1)

B gamma black side breakpoint sub adjustment

166

range (2)

∆PGBB1

∆PGBB2

Set V45 = V SW79 → ON and V79 = 1.6V. Then measure the gamma breakpoint at TP17, and label the non-inverted side as P inverted side as P ∆P

GBB1 = PGBBN (A) – PGBGT (A)

Next, measure the gamma breakpoint at TP17 with V79 = 5.0V, SW1 → ON and V1 = 4.0V, and label the non-inverted side as P as P ∆P

GBB2 = PGBBM (A) – PGBGT (A)

I, V23 = 1.6V, V68 = 5.0V, V77 = 3.3V,

GBBN and the

GBBNA.

GBBM and the inverted side

GBBMA.

0.15

—

0.3

–0.3

—

–0.15

V

Minimum RGB gamma

167

white side breakpoint value

Maximum RGB gamma

168

white side breakpoint value

Gamma white side breakpoint difference

169

between R, G and B

PGWN

PGWM

∆PGWT

(See "White Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V71 = 5.0V, V74 = 5.0V,

SW41 → ON and V41 = 1.6V. Then measure the gamma breakpoints of the noninverted and inverted sides at TP15, TP16 and TP17.

(See "White Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V71 = 5.0V, V74 = 1.6V,

SW1 → ON, V1 = 2.3V, SW41 → ON and V41 =

1.6V. Then measure the gamma breakpoints of the noninverted and inverted sides at TP15, TP16 and TP17.

(See "White Side Gamma Measurement Method".) Set V45 = V

I, V23 = 1.6V, V71 = 5.0V, V74 = 3.3V,

SW41 → ON and V41 = 1.6V. Then measure the gamma breakpoints at TP15, TP16 and TP17 and label the non-inverted sides as P

GWRT, PGWGT and PGWBT, and the inverted sides

as P

GWRTA, PGWGTA and PGWBTA, respectively.

∆P

GWT =PGWRT (A) – PGWGT (A)

=PGWGT (A) – PGWBT (A) =PGWBT (A) – PGWRT (A)

– 20 –

—

0.75

–0.15

–0.35

1.20

0

–0.05

—

0.15

V

CXA1853Q

No. Item Symbol Measurement conditions Unit

Min. Typ. Max.

(See "White Side Gamma Measurement Method".)

R gamma white side

170

breakpoint sub adjustment range (1)

∆P

GWR1

Set V45 = V SW41 → ON and V41 = 1.6V. Then measure the gamma breakpoint at TP16, and label the non-inverted side as P inverted side as P

I, V23 = 1.6V, V71 = 5.0V, V74 = 3.3V,

GWGT and the

GWGTA.

—

–0.3

–0.15

V

Next, measure the gamma breakpoint at TP15 with SW75 → ON and V75 = 5.0, and label the non-

R gamma white side breakpoint sub adjustment

171

range (2)

∆PGWR2

inverted side as P P

GWRNA.

∆P

GWR1 = PGWRN (A) – PGWGT (A)

Next, measure the gamma breakpoint at TP15 with V75 = 1.6V, SW1 → ON and V1 = 2.3V, and label the non-inverted side as P side as P ∆P

GWRMA.

GWR2 = PGWRM (A) – PGWGT (A)

GWRN and the inverted side as

GWRM and the inverted

0.15

0.3

—

V

(See "White Side Gamma Measurement Method".)

B gamma white side breakpoint sub adjustment

172

range (1)

B gamma white side breakpoint sub adjustment

173

range (2)

∆PGWB1

∆PGWB2

Set V45 = V SW41 → ON, V41 = 1.6V, SW76 → ON and V76 = 5.0V. Then measure the gamma breakpoint at TP17, and label the non-inverted side as P inverted side as P ∆P

GWB1 = PGWBN (A) – PGWGT (A)

Next, measure the gamma breakpoint at TP17 with V75 = 1.6V, SW1 → ON and V1 = 2.3V, and set the non-inverted side as P side as P ∆P

GWB2 = PGWBM (A) – PGWGT (A)

I, V23 = 1.6V, V71 = 5.0V, V74 = 3.3V,

GWBN and the

GWBNA.

GWBM and the inverted

GWBMA.

—

0.15

–0.3

0.3

–0.15

—

V

WHT LIM standard voltage

174

value

WHT LIM adjustment

175

range (1)

WHT LIM adjustment

176

range (2)

VWT

∆VW1

∆VW2

Set V45 = 5.0V, V42 = 0V, V54 = 0V and input SG1 (0dB) to (TEST IN). Label the non-inverted output amplitudes (black to white) at TP15, TP16 and TP17 as V

WRLT, VWGLT

and VWBLT, and the inverted output amplitudes as V

WRLTA, VWGLTA and VWBLTA, respectively.

Next, label the non-inverted output amplitudes (black to white) at TP15, TP16 and TP17 with SW41 → ON and V41 = 5.0V as V

WRLN, VWGLN

and VWBLN, and the inverted output amplitudes as V

WRLNA, VWGLNA and VWBLNA, respectively.

Next, label the non-inverted output amplitudes (black to white) at TP15, TP16 and TP17 with V41 = 1.6V as V inverted output amplitudes as V

WRLM, VWGLM and VWBLM, and the

WRLMA, VWGLMA

and VWBLMA, respectively. V

WT =VWRLT (A), VWGLT (A),

V

WBLT (A)

∆VW1 =VWRLN (A) – VWRLT (A)

=VWGLN (A) – VWGLT (A) =VWBLN (A) – VWBLT (A)

∆VW2 =VWRLM (A) – VWRLT (A)

=VWGLM (A) – VWGLT (A)

VWBLM (A) – VWBLT (A)

1.7

—

2.4

2.0

–1.7

2.8

2.3

–1.3

—

V

– 21 –

No. Item Symbol Measurement conditions UnitMin. Typ. Max.

Set V23 = 1.6V and V37 = 2.8V. Then label the DC voltages at TP15, TP16 and

BLK LIM standard voltage

177

value (non-inverted side)

TP17 as V

V

BLT

Next, set V23 = 5.0V, SW26 SW28

CR1, VCG1 and VCB1, respectively.

→

(b), SW27 →(b),

→

(b), V26 = 7.0V, V27 = 7.0V and V28 =

4.2

4.8

5.4

7.0V, and then label the non-inverted limiter levels at TP15, TP16 and TP17 as V V

BBLT, and the inverted limiter levels as V BRLTA,

V

BGLTA and VBBLTA, respectively.

BRLT, VBGLT and

Next, label the non-inverted limiter levels at TP15,

BLK LIM standard voltage

178

value (inverted side)

VBLTA

TP16 and TP17 with SW39

1.6V as V

BRLM, VBGLM and VBBLM, and the

inverted limiter levels as V V

BBLMA, respectively.

→

ON and V39 =

BRLMA, VBGLMA and

4.2

4.8

5.4

Next, label the non-inverted limiter levels at TP15, TP16 and TP17 with V39 = 5.0V as V

BRLN, VBGLN

and VBBLN, and the inverted limiter levels as V

BRLNA, VBGLNA and VBBLNA, respectively.

V

BLT =VCR1 – VBRLT

BLK LIM adjustment range

179

(1) (non-inverted side)

∆VBL1

=VCG1 – VBGLT =VCB1 – VBBLT

0.7

1.2

—

VBLTA =VBRLTA – VCR1

=VBGLTA – VCG1 =VBBLTA – VCB1

∆VBL1 =(VCR1 – VBRLM)

– (V

CR1 – VBRLT)

=(V

CG1 – VBGLM)

– (V

BLK LIM adjustment range

180

(2) (non-inverted side)

BLK LIM adjustment range

181

(3) (inverted side)

BLK LIM adjustment range

182

(4) (inverted side)

∆VBL2

∆VBL3

∆VBL4

∆V

BL2 =(VCR1 – VBRLN)

∆V

BL3 =(VBRLMA – VCR1)

∆V

BL4 =(VBRLNA – VCR1)

CG1 – VBGLT)

=(V

CB1 – VBBLM)

– (V

CB1 – VBBLT)

– (V

CR1 – VBRLT)

=(V

CG1 – VBGLN)

– (V

CG1 – VBGLT)

=(V

CB1 – VBBLN)

– (V

CB1 – VBBLT)

– (V

BRLTA – VCR1)

=(V

BGLMA – VCG1)

– (V

BGLTA – VCG1)

=(V

BBLMA – VCB1)

– (V

BBLTA – VCB1)

– (V

BRLTA – VCR1)

=(V

BGLNA – VCG1)

– (V

BGLTA – VCG1)

=(V

BBLNA – VCB1)

– (V

BBLTA – VCB1)

—

–0.5

—

–2.7

0

–2.7

–2.2

0.5

–2.2

CXA1853Q

V

RGB output DC voltage

183

SID output DC voltage

184

VCRGB

VCSID

Set V42 = 0V and V23 = 2.1V. Then label the DC voltages at TP15, TP16 and TP17 as V V

CRGB = VCRT, VCGT, VCBT

CRT, VCGT and VCBT, respectively.

Set V31 = 1.6V, SW30 →ON and V30 = 1.6V. Then measure the DC voltage at TP13.

– 22 –

6.35

6.50

6.65

V

CXA1853Q

No. Item Symbol Measurement conditions UnitMin. Typ. Max.

Set V42 = 0V, V31 = 1.6V, SW30→ON, V30 = 1.6V and V37 = 2.8V. Then measure the DC voltages at TP13, TP15,

DC voltage difference

185

between RGB and SID outputs

∆V

CSRGB

TP16 and TP17, and level these voltages as V

CS2, VCR2, VCG2 and VCB2, respectively.

∆V

CSRGB =VCS2 – VCR2, VCS2 – VCG2,

V

CS2 – VCB2

–150

0

150

=VCR2 – VCG2, VCR2 – VCB2,

V

CG2 – VCB2

mV

Minimum SIG CENT

186

adjustment voltage

Maximum SIG CENT

187

adjustment voltage

DC voltage difference between VCOM OUT and

188

RGB output

VCOM control range (1)

189

VCOM control range (2)

190

SID OUT amplitude

191

Maximum SID CTR control

192

voltage

VC1

VC2

∆VCOM

∆VCOM1

∆VCOM2

VSID

VSMAX

Set V42 = 0V, V37 = 5.0V, SW37 →ON. Then measure the DC voltages at TP13, TP15, TP16 and TP17.

Set V42 = 0V, V37 = 1.6V, SW37

→

ON. Then measure the DC voltages at TP15, TP16 and TP17.

∆V

COM =VCRT – VCOM

=VCGT – VCOM =VCBT – VCOM

Set SW36 →ON and V36 = 5.0V. Then label the voltage at TP38 as V ∆V

COM1 =VCRT – VCOM1

COM1.

=VCGT – VCOM1 =VCBT – VCOM1

Set SW36 →ON and V36 = 1.6V. Then label the voltage at TP38 as V ∆V

COM2 =VCRT – VCOM2

COM2.

=VCGT – VCOM2 =VCBT – VCOM2

Set V31 = 1.6V. Then measure the output amplitude at TP13.

Set V31 = 1.6V, SW30 V

CC2 = 13V.

→

ON, V30 = 5.0V and

Then measure the output amplitude at TP13.

—

7.7

100

2.1

8.3

10

4.7

8.3

300

–1.9

2.4

9.3

11

5.3

—

500

–1.6

10.3

—

V

mV

V

Vp-p

Minimum SID CTR control

193

voltage

Maximum PRG CTR

194

control voltage

VSMIN

VPRGM

Set V31 = 1.6V, SW30 V

CC2 = 13V.

→

ON, V30 = 1.6V and

Then measure the output amplitude at TP13. Set V31 = 5.0V.

Then measure the amplitude of the PRG section using the output waveform at TP13.

VPRG

SG5

– 23 –

—

2.0

5.0

3.2

6.5

—

Vp-p

CXA1853Q

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

Minimum PRG CTR

195

control voltage

Frequency response (1)

196

(RGB input – RGB output)

Frequency response (3)

197

(RGB input – γ)

Slew rate

198

(RGB input – RGB output)

Input dynamic range

199

V

PRGN

fRGB

fγ

RSRGB

VDIN

Set V31 = 1.6V. Then measure the amplitude of the PRG section using the output waveform at TP13.

Frequency response from (R IN), (G IN) and (B IN) to TP15, TP16 and TP17 (frequency which goes to –3dB with respect to 100kHz)

Frequency response from (R IN), (G IN) and (B IN) to the sample-and-hold circuit input (frequency which goes to –3dB with respect to 100kHz)

Input SG6 to (R IN), (G IN) and (B IN). Then adjust V45 so that the output amplitude (black to white) at TP16 is 3V. Measure the slew rate from the 10 to 90% rise and fall time of TP15, TP16 and TP17.

Set SW41 (variable amplitude) to (R IN), (G IN) and (B IN). Then label the amplitude of the 1st, 5th and 10th steps as b1, b5 and b10, respectively, using the non-inverted output waveform at TP15, TP16 and TP17. The input dynamic range is defined as the minimum value for the input amplitude (black to white) at which b1/b5 < 0.8 or b10/b5 < 0.8.

→

ON, V41 = 1.6V and input SG1

—

20

60

0.8

0

18

25

100

1.1

0.4

—

Vp-p

MHz

V/µs

Vp-p

Sample-and-hold circuit

200

droop rate

RDLP

Set V45 = V and (SH3). Then measure the droop rate at TP15, TP16 and TP17. Next, input SG7 to (SH4). Then measure the droop rate of TP15, TP16 and TP17.

I and input SG7 to (SH1), (SH2)

—

40

mV/µs

Note) The symbol (A) in the Measurement conditions inscription indicates that the measurement values for

both the inverted and non-inverted sides are used.

(Example)

20 log (VRSM (A)/VRST (A)) means both 20 log (VRSM/VRST) and 20 log (VRSMA/VRSTA). In this example, VRSM and VRST are non-inverted side measurement values and VRSMA and VRSTA are inverted side measurement values.

– 24 –

CXA1853Q

Black Side Gamma Measurement Method

Measure the output voltages y1 to y10 which correspond to the input voltages a1 to a10 using SG8 as the input signal. (Measure the voltage from the reference level. Label the white side from the reference level as positive, and the black side as negative.) Select the two points where | yn – yn–1 | (n = 2 to 10) is a maximum, and label these points yk and yk – 1. Also, label the input voltages which correspond to yk and yk – 1 as ak and ak – 1, respectively.

Next, measure the output voltages y1 to y10 which correspond to the input voltages a1 to a10 using SG9 as the input signal. Select the two points where | yn – yn – 1 | (n = 2 to 10) is a maximum, and label these points yh and yh – 1. Also, label the input voltages which correspond to yh and yh – 1 as ah and ah – 1, respectively.

From the above:

Maximum gain GM = (yk – yk – 1)/(ak – ak – 1) Minimum gain GN = (yh – yh – 1)/(ah – ah – 1)

The black side gamma gain is defined as the ratio of the maximum gain to the minimum gain. In other words:

Gamma gain = 20 log (GM/GN)

The gamma breakpoint is defined as the intersection between the straight line passing through points (ak, yk) and (ak – 1, yk – 1) and the straight line passing through points (ah, yh) and (ah – 1, yh – 1). In other words:

Gamma breakpoint = (GM ∗ GN ∗ (ak – ah) – GN ∗ yk + GM ∗ yh)/(GM – GN)

Reference level

y1

y2

y3

y4

y5

y6

y7

y8

y10

y9

Reference level

y2 y3 y4 y5 y6 y7 y8 y9 y10

y1

RGB output waveform (SG8) RGB output waveform (SG9)

– 25 –

CXA1853Q

White Side Gamma Measurement Method

Measure the output voltages y1 to y10 which correspond to the input voltages a1 to a10 using SG9 as the input signal. (Measure the voltage from the reference level. Label the white side from the reference level as positive, and the black side as negative.) Select the two points where | yn – yn–1 | (n = 2 to 10) is a maximum, and label these points yk and yk – 1. Also, label the input voltages which correspond to yk and yk – 1 as ak and ak – 1, respectively.

Next, measure the output voltages y1 to y10 which correspond to the input voltages a1 to a10 using SG8 as the input signal. Select the two points where | yn – yn – 1 | (n = 2 to 10) is a maximum, and label these points yh and yh – 1. Also, label the input voltages which correspond to yh and yh – 1 as ah and ah – 1, respectively.

From the above:

Maximum gain GM = (yk – yk – 1)/(ak – ak – 1) Minimum gain GN = (yh – yh – 1)/(ah – ah – 1)

The white side gamma gain is defined as the ratio of the maximum gain to the minimum gain. In other words:

Gamma gain = 20 log (GM/GN)

The gamma breakpoint is defined as the intersection between the straight line passing through points (ak, yk) and (ak – 1, yk – 1) and the straight line passing through points (ah, yh) and (ah – 1, yh – 1). In other words:

Gamma breakpoint = (GM ∗ GN ∗ (ak – ah) – GN ∗ yk + GM ∗ yh)/(GM – GN)

Reference level

y9 y10

y8y7y6y5y4y3y2y1

Reference level

y1

y4 y5 y6 y7 y8 y9 y10

y2 y3

RGB output waveform (SG8)

RGB output waveform (SG9)

– 26 –

Input Waveforms

CXA1853Q

SG1

SG2

5V

0V

5V

10-step linear waveform 0dB

Black

5µs

Amplitude of the 1st step

2µs

0.4µs

1.2µs

Amplitude of the 10th step

White

0.714V

Amplitude of the 5th step

0.286V

64µs

SG3

SG4

SG5

SG6

0V

5V

0V

5V

0V

5V

1µs

6µs

0.714V

tr, tf < 5ns

10µs

SG7

0V

– 27 –

SG8 35mV

35mV

CXA1853Q

35mV

SG9

350mV

– 28 –

Electrical Characteristics Measurement Circuit

(a)

SW29

V29

(a)

(b)

V28

SW28

(b)

(a)

SW27

1µ1µ1µ

V27

(a)

(b)

1µ

V26

SW26

(b)

V24 V25

V30

(SID FRP)

V36 V37

V39 V40

V23 SW24 SW25

SW30

V31

(FRP)

(PRG)

SW36 SW37

TP38

SW39 SW40

390k 390k 390k 390k

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

SW41

V41

VCC3

0.1µ

19

18

20

43

41

42

V42

TP17

100µ

100

17

44

V45

(XCLP1)

(XCLP2)

TP16

16

45

100

V46

TP15

15

46

SW46

100

V47

VCC2

0.1µ

14

47

TP13

SW47

100µ

13

48

TP49

33k

0.1µ

(B IN)

0.1µ

(a) (b)

SW11

TP11

100

12

49

(a)

11

50

100µ VCC4

(R IN)

(a) (b)

(G IN)

(a) (b)

TP10

10

51

0.1µ

TP9

SW10

9

52

(a)(b)

V52

SW9

VCC1

0.1µ

53

SW52

0.1µ

8

TP7

100µ

7

54

V54

V5 V4

SW5

6

5

55

56

(SH4)

4

57

SW4

58

(SH3)

3

(SH2)

CXA1853Q

V1

SW1

1

2

80 79

SW79 SW78

SW76 SW75

SW73 SW72

SW70 SW69

SW66

(SH1)

V79 V78

V77 V76

V75 V74

V73 V72

V71 V70

V69 V68

SW67

(b)

V66

0.1µ

(a)

SW65

VCC5

0.1µ

100µ

V63 0.1µ

(b)

(a) (b)

(a)

SW63

(a)(b)

(TEST IN)

V67

0.1µ

V65

0.1µ

78 77 76 75 74 73 72

71 70 69 68 67 66 65 64 63 62 61

60

59

V51

0.1µ

V53

SW51

(b) (a)

SW53

(b)

– 29 –

CXA1853Q

Description of Operation

Reference signal

The reference level is inserted into the RGB signal by inputting the XCLP2 signal shown below during the RGB input signal pedestal level interval. Gamma compensation and clamping operation are performed based on this level.

Reference signal

RGB signal input

XCLP1

1.2µ

0.4µ 0.4µ

XCLP2

Bright adjustment

The position of the RGB signal relative to the reference level changes according to the voltage applied to RGB MBRT (Pin 1). Bright can be controlled without changing the γ characteristics to the panel because the input bias is changed with the breakpoint for output kept constant.

RGB signal output

50 IRE

Bright pin

Low High

voltage preset

– 30 –

CXA1853Q

Gamma compensation

The gamma compensation curve establishes the gain change points (breakpoints) on both the black and white sides from the reference level. The black and white side gains and the black and white side gain change points can each be adjusted independently.

Output

Reference level

Input

Gain adjustment

Output

Input

Breakpoint variation

Sample-and-hold, gain control and pedestal clamp

Since sample-and-hold circuits are established in the R, G and B lines and each of these circuits is operated by an independent pulse, the delay can be set freely. In addition, the pulse leak is canceled by establishing a sample-and-hold circuit in the clamp loop and inputting the differential input of the gain control circuit.

S/H S/H

51 to 53

57, 58, 61

S/H pulse

56

S/H

Clamp pulse

Clamp capacitance

– 31 –

Gain control amplifier

Error amplifier

45

To the inversion circuit

Clamp voltage

CXA1853Q

RGB inversion amplifier

The polarity of the RGB output is inverted according to the FRP pulse. The relationship between input and output is as shown in the figure below.

RGB IN

FRP

Signal center

RGB OUT

SID output

The CXA1853Q outputs a side black signal for 4:3/16:9 aspect conversion. The black level is adjusted by the SID CTR pin. In addition, the PRG level can be set in part of the side black signal by inputting the PRG pulse. The PRG level is adjusted by the PRG CTR pin. The relationship between each input and output is as shown in the figure below.

PRG

SIDFRP

Signal center

SID OUT

PRG level

Signal center control

The RGB and SID output center voltages are adjusted by the SIG CENT CTR (Pin 37). When SIG CENT CTR is preset, the output pin center voltage goes to VCC2/2.

Output clamp

The average value of each RGB and SID output signal is detected with external RC circuits and input to the RGB CLP and SID CLP pins. Then the center voltage offsets among R, G, B and SID outputs are reduced by feedback which equalizes these detected values and the signal center voltage set by the SIG CENT CTR pin.

– 32 –

CXA1853Q

Notes on Operation

1) R IN (Pin 9), G IN (Pin 10), B IN (Pin 11) input signal impedance An external capacitor is used as the hold capacitor for the clamp at the input of this IC. Therefore, the input signal impedance must be sufficiently low (75Ω or less) and the external capacitor must have a small leak current.

2) Clamp hold capacitors (Pins 51 to 53 and 65 to 67) The external capacitors connected to these pins must have a small leak current.

3) R, G, B, SID OUT load capacitance The output signal will tend to oscillate if the R, G, B and SID OUT load capacitance increases. Be sure to insert a 100 to 220Ω resistor in series to these output pins, and design to keep the load capacitance from exceeding 30pF.

4) External capacitor at the output The leak current absolute value and tolerance for the R, G, B and SID OUT average value detecting capacitors should be small. Note that if there is an offset in the leak current between R, G and B, offset voltage is also generated between R, G and B in the external resistor, which causes a DC offset of the output signal.

R, G, B,

SID OUT

R, G, B,

SID CLP

100 to 220Ω

Load capacitance 30pF or less

390kΩ

1µF

5) GND and power supply pins Pins 12, 22, 34, 48, 55 and 64 (GND) should be set to the minimum identical potential applied to the IC, and should not be left open. In addition, the potential at Pins 8, 18, 50 and 62 should be the same.

– 33 –

Application Circuit

CXD2412AQ

Timing Generator

100100100100 100100

VR VR

CXA1853Q

5V

0.01µ 100µ

5V

0.01µ 100µ

0.1µ

VR

SH1

PV

TEST 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.

0.1µ 0.1µ 0.1µ

N.C.

SH2

60

61

CC

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

SH3 57

58

59

SIG SEL

GCA DETR

SH4

GND

55

56

GCA DETG

53

52

54

GCA DETB

50

51

CXA1853Q

33k

4

CC

GND

B GAIN

RGB GAIN

V

IREF

49

R GAIN

46

48

45

47

XCLP1

44

XCLP2 43

TEST SEL

WHT LIM 41

42

BLK CENT

40

BLK LIM

39

VCOM OUT

38

SIG CENT CTR

37

VCOM CTR

36

PRG

35

GND

34

SID FRP

33

FRP

32

PRG CTR

31

SID CTR

30

SID CLP

29

R CLP

28

G CLP

27

B CLP

26

R SBRT

25

B SBRT

24

RGB SBRT

23

GND

22

N.C.

21

VR

3.3k

3

N.C.

5

4

B MBRT

R MBRT

VR

VRVR

0.01µ 100µ

N.C.

1

2

N.C.

RGB MBRT

5V

68k

0.01µ

33k

13V

3.3k

VR

indicated as VR.

buff

indicated as buff.

6

7

TEST OUT

5V

9

10

8

CC1

RIN

GIN

V

0.1µR0.1µ

G

ANALOG

RGB IN

13

12

11 BIN

GND

SID OUT

0.1µ

B

13V

0.01µ 100µ

14 15

CC2

V

R OUT

16

G OUT

17

B OUT

19

18

20

CC3

N.C.

V

150

5V

0.01µ 100µ

buff

390k

390k 390k

390k

LCX007

LCD Panel

Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.

1µ1µ1µ1µ

– 34 –

Example of Representative Characteristics

CXA1853Q

[dB]

CS

∆G

–2

–4

–6

–8

0.4

0.2

RGB GAIN adjustment range

8

6

4

2

0

[dB]

RS

∆G

R GAIN, B GAIN adjustment range

8

6

4

2

0

–2

–4

–6

–8

2543

RGB GAIN (V45) [V]

2543

R GAIN (V46) [V] B GAIN (V47) [V]

RGB MBRT adjustment range

R MBRT, B MBRT adjustment range

0.2

0.1

[V]

BM

∆V

[V]

SB

V

–0.2

–0.4

12

10

0

[V]

BR

0

∆V

–0.1

–0.2

2543

RGB MBRT (V1) [V]

2543

R MBRT (V4) [V] B MBRT (V5) [V]

RGB SBRT adjustment range

R SBRT, B SBRT adjustment range

2

[V]

SSR

∆V

1

0

–1

8

6

4

2

–2

0

–2

2543

RGB SBRT (V23) [V]

2543

R SBRT (V25) [V] B SBRT (V24) [V]

– 35 –

CXA1853Q

RGB gamma black side gain adjustment range

20

15

10

[dB]

GB

G

5

0

2543

RGB GAM GAIN1 (V68) [V]

RGB gamma white side gain adjustment range

20

15

R, B gamma black side gain adjustment range

5

[dB]

0

GBR

∆G

–5

2543

R GAM GAIN1 (V69) [V]

B GAM GAIN1 (V70) [V]

R, B gamma white side gain adjustment range

5

10

[dB]

GW

G

5

0

2543

RGB GAM GAIN2 (V71) [V]

RGB gamma black side breakpoint adjustment range

0

–0.5

[V]

GB

P

[dB]

0

GWR

∆G

–5

2543

R GAM GAIN2 (V72) [V]

B GAM GAIN2 (V73) [V]

R, B gamma black side breakpoint sub adjustment range

0.4

0.2

[V]

0

GBR

∆P

–0.2

–1

2543

RGB GAM CTR1 (V77) [V]

– 36 –

–0.4

2543

R GAM CTR1 (V78) [V] B GAM CTR1 (V79) [V]

CXA1853Q

[V]

GW

P

[V]

W

∆V

1.5

0.5

–0.5

–1

–2

RGB gamma white side breakpoint adjustment range

1

0

2543

RGB GAM CTR2 (V74) [V]

WHT LIM adjustment range

3

2

1

0

2543

WHT LIM (V41) [V]

R gamma white side breakpoint sub adjustment range

0.4

0.2

[V]

0

GWR

∆P

–0.2

–0.4

2543

R GAM CTR2 (V75) [V]

B GAM CTR2 (V76) [V]

BLK LIM adjustment range

7

6

5

4

(non-inverted side) [V]

BGL

3

— V

2

CG1

V

1

2543

BLK LIM (V39) [V]

BLK LIM adjustment range

7

6

5

4

(inverted side) [V]

CG1

3

— V

BGLA

V

2

1

2543

BLK LIM (V39) [V]

Signal center adjustment range

9

8

7

[V]

C

V

6

5

4

2543

SIG CENT CTR (V37) [V]

– 37 –

VCOM control range

3

2

1

[V]

COM

0

∆V

–1

–2

2543

VCOM CTR (V36) [V]

CXA1853Q

SID amplitude control range

12

10

8

[Vp-p]

SID

V

6

4

2543

SID CTR (V30) [V]

PRG level control range

3

2

[Vp-p]

PRG

V

1

0

2543

PRG CTR (V31) [V]

– 38 –

Package Outline Unit: mm

80PIN QFP (PLASTIC)

16.0 ± 0.3

14.0 ± 0.2

CXA1853Q

1.4 ± 0.2

61

80

60

0.65

0.625 ± 0.2

0.1 ± 0.1

0.3 ± 0.05

41

201

0.13

40

21

0.1

15.0 ± 0.2

A

M

0.15 ± 0.05

SONY CODE EIAJ CODE JEDEC CODE

0° to 10°

DETAIL A

QFP80P-L111 QFP080-P-1414

PACKAGE STRUCTURE

PACKAGE MATERIAL

LEAD TREATMENT LEAD MATERIAL PACKAGE WEIGHT

EPOXY RESIN

SOLDER PLATING COPPER

0.6g

– 39 –