Datasheet KA7305 Datasheet (Samsung)

KA7305 B/W CCD PROCESSOR

ORDERING INFORMATION

GENERAL DESCRIPTION

The KA7305 is a monolithic integrated circuit for B/W CCD camera 1 chip signal processor. It contains functional block from CDS to video driver and 2 comparators for EE mode. Also, it performs a low power onsumption and a small dimension of set implementation by decreasing external parts as a 1 chip.

FEATURES

* 5 Steps sample & hold. * 4 dB ~ 32 dB AGC gain control. * Built in 2 comparators for EE mode control. * EE mode WND / BLK selectable. * Gamma γ = 0.45 / Linear output separation. * Built in OP-AMP for AGC loop. * 3 Mode set-up control. * 2 Mode white / clip control. * 75 Ohm video driver & sag compensation.

BLOCK DIAGRAM

Device Package OperatingTemperature

KA7305 48-QFP-0707

48-QFP-0707

-20°C ~ +75°C

4044

OB CLP

24 25

LUM DET

LIN

VIDEO DRIVE

6

OP AMP

38

+

-

39

37

17

33

26

19

36

OB CLP

4

SAMPLE & HOLD

OB CLP

20 43

3 21

EE AMP

18 21

48

+

-

SET-UP CONTROL

+

AGC AMP

-

GAMMA r=0.45

WHITE CLIP

464241

22 23

45

LUM & SYNC MIX

9

7

DUMMY CLAMP

8

34

WIN/ BLK

16 35

32

+

COMP

-

31 30

+

COMP

-

29

27 28

5

KA7305 B/W CCD PROCESSOR

VCC1

SHP1

SHD

SHP2

GND1

GND2

PG

DATA

CLP3

N.C

PIN CONFIGURATION

DET OUT OP(+) OP(-) OP OUT AGCONT AGCMAX CLP1

CLP

IN AGC OUT N.C VCC2

37 38 39 40 41 42 43

44

45 46 47 48

VCC3

IRIS CLP

3536

IRIS OUT

34

CP1(+)

GND4

CP1(-)

313233

CP2(+)

30

CP2(-)

KA7305

B/W CCD PROCESSOR

2

1

3

4

6

5

7 8

9

EEI

10

EE2

VIDEO OUT

2526272829

12

11

SAG

24 23 22 21 20 19 18 17 16 15 14 13

BLK SYNC W/C SET-UP VIDEO IN GND3

OUT LINEAR WIN/BLK N.C N.C N.C

KA7305 B/W CCD PROCESSOR

PIN DESCRIPTION

No Symbol I/O Description Remark

1 VCC1 - Power supply 2 SHP1 I Precharge sample & hold pulse Active high 3 SHD I Data sample & hold pulse Active high 4 SHP2 I Precharge sample & hold pulse Active high 5 GND1 - Ground 6 GND2 - Ground 7 PG I CCD signal input 8 DATA I CCD singal input

9 CLP3 I Dummy clamp pulse Active high 10 N.C - No connection 11 N.C - No connection 12 N.C - No connection 13 N.C - No connection 14 N.C - No connection 15 N.C - No connection

16 WIN/BLK I Window/Blank pulse Active high 17 LINEAR O Linear out 18 19 GND3 - Ground 20 VIDEO IN I Video driver input signal 21 SET-UP I Set - up level control 22 W/C I White - clip level control

23 SYNC I Composite sync pulse 24 BLK I Composite blank pulse

25 SAG I Sag compensation 26 VIDEO OUT O Composite video signal output 27 EE2 O EE more comparator output 2 28 EE1 O EE more comparator output 1 29 CP2(-) I EE more comparator2 - input 30 CP2(+) I EE more comparator2 + input 31 CP1(-) I EE more comparator1 - input 32 CP1(+) I EE more comparator1 + input 33 GND4 - Ground 34 IRIS OUT O IRIS detect output 35 IRIS CLP - IRIS clamp 36 VCC3 - Power supply 37 DET OUT O AGC detect output 38 OP(+) I AGC OP AMP input (+) 39 OP(-) I AGC OP AMP input (-) 40 OP OUT O AGC OP AMP output 41 AGCONT I AGC gain control 42 AGCMAX I AGC maximum gain control 43 CLP1 I Optical black level clamp pulse Active high 44 45 46 AGC OUT O AGC output signal 47 N.C - No connection 48 VCC2 - Power supply

ϒ OUT

ϒ CLP

ϒ IN

O Gamma out

- Gamma clamp I Gamma input

KA7305 B/W CCD PROCESSOR

ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)

Characteristics Symbol Value Unit

Power Supply Voltage Power Dissipation Operating Temperature Storage Temperature

ELECTRICAL CHARACTERISTICS (VCC = 5V, Ta = 25°C)

Characteristics Symbol Test Condition Min Typ Max Unit

Operating Voltage VCC - 4.75 5.00 5.25 V Supply Current ICC - 30 45 60 mA AGC Max Min Gain G46a AGC Max = 4V, Data In = 100mA

AGC Cont Min Gain G46b AGC Cont = 5V, Data In = 500mV - 4 6 dB AGC Cont Max Gain G46c AGC Max = 0V, Data In = 30mV

AGC Cont 10dB G46d AGC Max = 0V, Data In = 320mV

AGC Out D.C V46 2.25 2.55 2.85 V Detect Out D.C V37 1.8 2.0 2.2 V Iris Out D.C V34 1.1 1.3 1.5 V Iris Amp Gain G34 8 10 12 dB Linear Amp Gain G17 1.6 2.6 3.6 dB Gamma Output Level V18

ELECTRICAL CHARACTERISTICS ( VCC = 5V, Ta = 25°C)

Characteristics Symbol Test Condition Min Typ Max Unit

Video Amp Gain G26 5.7 6.0 6.3 dB Sync Level Vsync 26.3 286 309 mV Set - Up Level 1 Vset1 S/U Cont = 0V -15 0 +15 mV Set - Up Level 2 Vset2 S/U Cont = 5V 0 20 40 mV Set - Up Level 3 Vset3 S/U Cont = 1.75V - -25 -3 mV Set - Up Level 4 Vset4 S/U Cont = 3.3V 80 130 - mV White - Clip Level 1 Vwe1 S/U Cont = 0V 780 820 860 mV White - Clip Level 2 Vwe2 S/U Cont = 2V - 300 600 mV White - Clip Level 3 Vwe3 S/U Cont = 5V 1000 1300 - mV OP - Amp Dynamic Range Dop 3.3 - - V EE Comparator & Level Vch Vin (+) = 2.6V, Vin (-) = 2.5V 4.5 - - V EE Comparator & Level Vcl Vin (+) = 2.5V, Vin (-) = 2.6V - - 1.2 V

VCC

Pd Topr Tstg

AGC Cont = 1.5V

AGC Cont = 3.55v

ϒ In = 500mV

P-P

7

500

-20 ~ +75

-65 ~ +150

V

mW

°C °C

- 18 20 dB

30 32 - dB

8 10 12 dB

510 610 710 mV

P-P

P-P P-P P-P P-P P-P P-P P-P P-P

P-P

TEMPERATURE CHARACTERISTICS (VCC = 5V, Ta = -20°C ~ +75°C)

Characteristics Symbol Test Condition Unit

AGC out D.C V46 Detect out D.C V37 EE AMP out D.C V34 ϒ AMP out

V18

Sync level Vsy

±5% ±5% ±5% ±5% ±5%

mV mV

V V V

P-P P-P

KA7305 B/W CCD PROCESSOR

ELECTRICAL CHARACTERISTIC CURVE

(dB)

SET-UP LEVEL (mV)

AGC CONTROL vs AMP GAIN

40GAIN

30

20

10

0

0 1 2 3 4 5

S/U CONT vs S/U LEVEL

130

120

80

40

0 - -

AGC CONT(V)

- - -

GAIN

(dB)

W/C LEVEL

(mV)

AGC MAX vs AMP GAIN

40

30

20

10

0

0 1 2 3 4

W/C CONT vs W/C LEVEL

1000

800

600

400

- - - - -

AGC MAX

5

(V)

- 40

r OUTPUT LEVEL

800

(mV)

600

400

200

0 1 2 3 4 5

SET-UP CONT(V)

GAMMA INPUT vs OUTPUT

0

200

0

400 600

800

1000

r INPUT

(mV)

0

0 1 2 3 4 5

W/C CONT

(V)

KA7305 B/W CCD PROCESSOR

TEST INPUT/OUTPUT SIGNAL WAVEFORM

INPUT SIGNALINPUT TERMINAL

Pin7,8(PG,DATA)

Pin45(r IN)

Pin20(VIDEO IN)

Pin23(SYNC)

Pin24(BLK)

Pin43(CLP1)

Pin9(CLP3)

OUTPUT TERMINAL

Pin46(AGC OUT)

Pin18(r OUT)

Pin17(LINEAR)

Pin37(DET OUT)

Pin34(IRIS OUT)

Pin26(V. OUT)

5us

15us

2us

- - - -

50us

2us

OUTPUT SIGNAL

- - - - - - - - - - - - - - - - - - - - - - - - - - -

SYNC LEVEL

KA7305 B/W CCD PROCESSOR

TEST CIRCUIT

V V

EE1

VV

EE2

104

VIDEO OUT

SAG

252627282930313233343536

24 23 22 21 20 19 18 17 16 15 14 13

BLK SYNC W/C SET - UP VIDEO IN GND3

OUT LINEAR WIN / BLK N.C N.C N.C

V V

V

DET OUT

OP OUT

AGCONT AGCMAX

104

AGC OUT

5V

OP ( + )

OP ( - )

CLP1

CLP

VCC2

A

N.C

5V

A

VCC3

IRIS CLP

37 38 39 40

41 42 43 44

IN

45 46 47 48

1 2 3 4 5 6

104

GND4

IRIS OUT

CP1 ( - )

CP1 ( + )

KA7305

B / W PROCESSOR

CP2 ( - )

CP2 ( + )

7 8 9 10 11 12

5V

VCC1

A

V

SHD

SHP1

SHP2

GND1

5V

: VARIABLE VOLTAGE

: SIGNAL GENERATOR

: VOLT METER

GND2

PG

104

DATA

CLP3

104

N.C

A

: AMPERE METER

: ANALOG GND

: DIGITAL GND

KA7305 B/W CCD PROCESSOR

APPLICATION CIRCUIT

5V

100

2SK300

47pF

2.2KΩ

1µF/16V

KS7212

TIMING & SYNC GEN

Ω

1µF/16V

+

2.2KΩ

3.9KΩ

VCC1 SHP1

SHP2 GND1 GND2

DATA CLP3

47pF

CCD

KC73125 - M

5V

VCC2

48

1 2 3 4 5 6 7 8 9 10 11 12

1KΩ

N.C

47

12µH

IN

AGC OUT

45

46

22pF

CLP

44

+

SHD

PG

KA7305

B / W PROCESSOR

N.C N.C

N.C

1314151617181920212223

N.C

2.2KΩ

N.C

WIN / BLK

LINEAR

104

2.2KΩ

Ω

2.2K

47pF

50KΩ

CLP1

43

OUT

47pF

10KΩ

AGCONT

AGCMAX

41

42

GND3

OP ( - )

OP OUT

39

40

SET - UP

VIDEO. IN

50KΩ

OP ( + )

N/C

KDS226

38

SYNC

DET OUT

37

252627282930313233343536

24

BLK

10KΩ

VCC3

IRIS CLP IRIS OUT

GND4 CP1 ( - ) CP1 ( + ) CP2 ( - ) CP2 ( + ) EE1 EE2 VIDEO. OUT SAG

5V

1KΩ

+

100KΩ

104

+

1MΩ 1MΩ

22µH

+

103

KSC1623

1KΩ

10µF /16V

22µF /16V

1KΩ

22µF

820Ω KSC1623

/16V

+

50KΩ50K

10µF

75Ω

/16V

10µF /16V

VIDEO OUT

10KΩ

2.2KΩ

Ω

2.2K

POWER SUPPLY 5V

5V

Ω

KA7305 B/W CCD PROCESSOR

PACKAGE DIMENSION

48-QFP-0707

_

9.00 + 0.30

7.00 + 0.20

# 48

0.50

Unit : mm

_

9.00 + 0.30

_

7.00 + 0.20

# 1

_

0.18 + 0.10

0.1 MAX

( 0.75 )

0~8

0.13

+ 0.10

- 0.05

0.00 MIN

_

1.40 + 0.10

1.6 MAX

0.10 MAX

_

0.50 + 0.20