Datasheet KA7302D Datasheet (Samsung)

KA7302D CDS, AGC, GAMMA CORRECTION

AGC CONT

AGC OUT

ORDERING INFORMATION

GENERAL DISCRIPTION

The KA7302D is a bipolar monolithic integrated circuit
for CCD Color Video Camera, and then it provides functions
of Correlated Double Sampling, Automatic Gain Control and
Gamma Correction.

FEATURES

• CDS ( Correlated Double Sampling )

• AGC ( Automatic Gain Control )

• Gamma Compensation

• +5V Single Power Supply

• Low Power < 400 mW

• Dual Power Down Mode

- AGC Part stand by mode ( AGC OUT : GND )

• Maxmum Operational Frequency > 20 MHz

BLOCK DIAGRAM

CLP1

30

C
O
M
P
1

SHD

1 2

PBLK

29 28

C
O
M
P
2

SHP

GC1

SH3

3

CLP4

REFV

27

REV

SH2

SH1

4

DGND

CDS CAP

26 25 24 23

BLK

CLP

6

5

7 8 9

30-SSOP-375

Device Package Operating Temperature

KA7302D 30-SSOP-375

-20°C ~ +75 °C

AGC CAP

GAMMA OUT

BUF

AGC

6dB

C_GAMMA

GAMCON

CDS OUT

22

CLP

SO

21

BLK

BUF
CLP

DLY

10 11

SOB

20 19

Y_GAMMA

GAMCON

12

GAM CAP

GC2

BPF

VCC

18

MIX GC3

13 14

AGND2

17 16

BUF

CLP

B
U
F

15

XSHD

XSHP

PG IN

DATA IN

AGND1

C_GAM

CDS GC

CONT

TRAP1

TRAP2

GAMMA

GC

DLY1

AGC GC

DLY2

Y_GAM

CONT

KA7302D CDS, AGC, GAMMA CORRECTION

PIN DESCRIPTION

No Symbol I/O Description Active

1 XSHD I Sample & Hold DATA Pulse LOW
2 XSHP I Sample & Hold Pre - Charge Pulse LOW
3 DATA IN I CCD Signal Input
4 PG IN I CCD Signal Input
5 AGND1 - Analog Ground
6 AGC CONT I AGC Gain Control
7 CDS GC1 I CDS Gain Control
8

9 TRAP1 O A Luminance trap filter is tied between this pin & Trap2
10 TRAP2 I Y _ Gamma Control
11
12 AGC GC2 I GC2 Gain Control
13 DLY1 I Output for Delay (Chroma Signal)
14 DLY2 O Input for Delay (Chroma Signal)
15
16 AGC OUT O AGC Signal Output
17 AGND2 - Analog Ground
18 VCC - Power Supply
19
20 SOB O Connected to BPF
21 SO O Connected to BPF
22 CDS OUT O CDS Signal Output
23
24 AGC CAP O AGC Clamp Capacitor
25 CDS CAP O CDS Clamp Capacitor
26 DGND - Digital Ground
27 REFV O Reference Voltage Output HIGH
28 CLP4 I Clamp Pulse 4 Input
29 PBLK I Pre - Blarking Pulse Input LOW
30 CLP1 I Clamp Pulse 1 Input HIGH

C γ CONT

γ GC3

Y γ CONT

γ CAP

γ OUT

* HIGH(H): 4.0V ↑, LOW(L): 4.0V ↓

ABSOLUTE MAXIMUM RATINGS(Ta = 25°C)

I C _ Gamma Control

I GC3 Gain Control

I Y Gamma Curve Control

O Gamma Clamp Capacitor

O Gamma Signal Output

Characteristic Symbol Value Unit

Power Source Voltage
Power Dissipation
Operating Temperature
Storage Temperature

Vcc

Pd
Topr
Tstg

7

900

-20 ~ 75

-65 ~ 150

RECOMMANDED OPERATING CONDITIONS(Ta = 25°C)

Characteristic Symbol Value Unit

Supply Voltage Vcc 4.5 ~ 5.5 V

V

mW

°C
°C

KA7302D CDS, AGC, GAMMA CORRECTION

ELECTRICAL CHARACTERISTICS

( Vcc = 4.5 ~ 5.5 V , Ta = 25 °C )

Characteristics Symbol Test Condition Min Typ Max Unit

SUPPLY CURRENT

GC1 CONT.Min

GC1 CONT.Max
CDS OUT Maximum

Voltage Swing
GC1 AMP CMPR CMR1 15.75KHz - -4.0 -36 dB
GC1 AMP Bandwidth FC1A 10MHz -3 - - dB

AGC CONT.Min

AGC CONT.Max

AGC AMP CMRR CMRA 15.75KHz - -40 -36 dB
AGC AMP Bandwidth FCA1 20MHz -3 - - dB
GC3 AMP CMRR CMR3 15.75KHz - -40 -36 dB
AGC AMP Bandwidth FC3A 10MHz -3 - - dB

GC3 CONT.Min GC3A Min

GC3 CONT.Max GC3A Max
ϒ OUT Maximum

Voltage Swing

ICCR1

ICC1

GC1A

Min

GC1A

Max

CDR1

AGC1

Min

AGC1

Max

GDR1

AGC OUT & GAM OUT → OPEN
VCC=5V

AGC OUT → GND
VCC=5V
CDS OUT/DATA IN
CDS GC=1.5V
CDS OUT/DATA IN
CDS GC=4.5V
DATA IN = 400mV
(Peak to Peak)

TRAP1 OUT/DATA IN
AGC CONT =1.5V
Cal :AGC Gain -6dB
TRAP1 OUT/DATA IN
AGC CONT = 4.5V
Cal: AGC Gain -6dB

ϒ OUT/SO
ϒ GC=1.5V
ϒ OUT/SO
ϒ GC=4.5V

SO Input = 400mV
(Peak to Peak)

61 73 88 mA

55 64 78 mA

- -6 -4 dB

14 18 - dB

2.0 - - V

4.0 6.0 8.0 dB

30 32 - dB

- -6 -4 dB

14 18 - dB

2.0 - - V

KA7302D CDS, AGC, GAMMA CORRECTION

ELECTRICAL CHARACTERISTICS

( Vcc = 4.5 ~ 5.5 V , Ta = 25 °C )

Characteristics Symbol Test Condition Min Typ Max Unit

γ Y1.0(Typ) γ Y T.1

γ Y2.0/γ Y1.0 γ Y 2.0A

γ Y3.0/γ Y1.0 γ Y 3.0A

γ Y0.5/γ Y1.0 γ Y 0.5A

γ Y

γ Y0.5( Max ) γ Y Max

γ Y 0.5 ( Min ) γ Y Min

γ C 1.0 ( Typ ) γ CT1 Typ.

γ C 1.0 ( Max ) γ CT1 Max

γ C γ C 1.0 ( Min ) γ CT1 Min

γ C 0.5/γ C 1.0 γ C 0.5 A

γ C 2.0 /γ C 1.0 γ C 2.0 A

TRAP2 input=0.4V
Gamma GC=2.6V
Measure : Gamma Output
TRAP2 input =0.8Vpp
Gamma GC = 2.6V
Cal.:Gamma Output /γ YT1
TRAP2 input =1.2Vpp
Gamma GC = 2.6V
Cal.:Gamma Output /γ YT1
TRAP2 input =0.2Vpp
Gamma GC = 2.6V
Cal.:Gamma Output /γ YT1
TRAP2 input =0.2/0.4Vpp
Gamma GC = 2.6V
Y_Gamcont = 1.8V
Cal.:Gamma Output
( 0.2 Vpp / 0.4 Vpp )
TRAP2 input =0.2/0.4Vpp
Gamma GC = 2.6V
Y_Gamcont = 5.0V
Cal.:Gamma Output
( 0.2 Vpp / 0.4 Vpp )
TRAP1 output =0.8Vpp
C_GAMCONT = 0.0V
Measure, : DL1 Output
TRAP1 output =0.8Vpp
C_GAMCONT = 1.8V
Measure, : DL1 Output
TRAP1 output =0.8Vpp
C_GAMCONT = 5.0V
Measure, : DL1 Output
TRAP1 output =0.4Vpp
C_GAMCONT = 0.0V
Measure, : DL1 Output
CAL. : DL1 output /γ CT1 Typ.
TRAP1 output =1.6Vpp
C_GAMCONT = 0.0V
Measure, : DL1 Output
CAL. : DL1 output /γ CT1 Typ.

PP

400 525 650 mV

1.2 1.4 1.6 -

1.4 1.6 1.8 -

0.68 0.74 0.80 -

0.78 0.85 0.92 -

0.55 0.62 0.70 -

270 310 350 mV

300 340 380 mV

240 275 310 mV

0.5 0.6 0.7 -

1.38 1.55 1.72 -

KA7302D CDS, AGC, GAMMA CORRECTION

Vcc

TEST CIRCUIT

1 2 3 4 5 6 7 8 9

10

11 12 13 14

SHD

SHP

C_GAMMA

GAMCON

DLY

BPF

SH1

CLP

GAMCON MIX

P

2

SH3 SH2

6dB

BUF

Y_GAMMA

COMP1

COM

CLP

AGC

BLK

GC2

CLP

GC1

BLK

BUF

REV

30 29 28

27 26

25 24

23

22

21 20 19

18

OFF ON

15

GC3

CLP

17

BUF

16

BUF

KA7302D CDS, AGC, GAMMA CORRECTION

APPLICATION CIRCUIT

10Ω

10pF

DATA/PG IN

12KΩ

SHP

SHD

CLP1

PBLK

CLP4

DTC143TU

1KΩ

1KΩ

1KΩ

10Ω

29 28 27 26 25 23 22 2130 24 19 18 1720 16

CLP1

PBLK

/16V

CLP4

+

REP

10510µF

GND

CCLP

105

ALCP

ROUT

104

CDSO

3.3KΩ
+5VA

2.2KΩ

3

IMT1

2
1

33µH

105

SO

SOB

VCC

GND

RCLP

AGCO

WND

IRIS

10K

4
5
6

33pF

2.2KΩ

104

3.3K

+5VA

KSC1623

R-OUT

2.2KΩ

R-OUT

CLP 1
CLP2
PBLK
SHD
SHP

WND

IRIS
AGC
YR CONT
CR CONT

R-OUT

TO KS7301B

1
2
3
4
5

WND

TO EVR

1
2
3
4

KA7302D

SHD

SHP

IN+

IN-

GND

CRC

IRP

YRI

RGC

AGC

2 3 4 5 61 8 9 10712 13 1411

10pF

105

105

10

GC1

4.7KΩ

GC2

DL1

YRC

DL2

15

7
8

9
10
11
12

105

104

KSA812

DL1

LPF DLY

4.7K

6
5
4
3
2
1

+5VA

10KΩ

103 27KΩ

KSC1623

4.7KΩ

AGC

1KΩ

CR CONT

YR CONT

10Ω 1KΩ

100µH 10pF

104 10KΩ

KA7302D CDS, AGC, GAMMA CORRECTION

TIMING CHART

35ns
17ns

70us
88ns

105ns

1us

8us

11us

0.5us

105ns

9.54MHz

5V

9.54MHz

0V

5V

9.54MHz

0V

2us

5V

0V

2us

5V

15.748KHz

15.748KHz

0V

5V

15.748KHz

10us

0V

63.5us

KA7302D CDS, AGC, GAMMA CORRECTION

AMP CHARACTERISTIC GRAPHS

40

30

20

10

AGC Gain [ dB ]

0

1 2

AGC CONT VOLTAGE [ V ]

2

1

Y - γ OUTPUT

20

10

0

GC(1, 2, 3) Gain [ dB ]

3

5

4

-10

GC(1, 2, 3) CONT. VOLTAGE [ V ]

2 3 4

1

Y - γ CONT.=1.5 V
Y - γ CONT.=0.0 V
Y - γ CONT.=5.0 V

5

0

1.25

Y - γ INPUT

2.5

3.75

KA7302D CDS, AGC, GAMMA CORRECTION

PACKAGE DIMENSION

30-SSOP-375 unit:mm