Panasonic AN2050FB Datasheet

AN2050FB

CCD Monochrome Video Camera Signal Processor IC

■ Overview

The AN2050FB is an integrated circuit specified to
the monochrome CCD image element which is em­ployed in the monitoring video cameras, door phones,
TV telephone sets, etc. The high frequency block and
power block that are composed of 3-chip of DS signal
processing, AGC. Γ compensating and NTSC output
so far, are integrated into one chip to offer low cost.

■ Features

• Frequency characteristics:10MHz (icompatible with
the CCD image element of 330,000 pixels)

• AGC range:18dB (improved SN ratio)

• Operating supply voltage range:4.5V to 5.3V (typ.
5V)

• Power consumption:typ. 225mW

10.0±0.3

33 23

34

10.0±0.3

44

111

0.1±0.1

(0.55)

44-Pin QUADFLAT Package (QFP044-P-1010)

12.3±0.4

22

12

– 0.05

+0.1

0.15

0.8

0.35±0.1

0.9±0.25

0.9±0.25

Unit:mm

12.3±0.4

2.0±0.2

■ Block Diagram

V

CC

(DS)

34 33 35 32 31 29 26 28 27 24 4 21 5 6 22 25

Clamp S.H

37

30

ALC

38

DET

GND

36

(DS)

39

41

40

42

43

44

–
+

–
+

ALC

DC
F··B

DC
F·B

–
+

Vref

Chara.
Mix

Chara.
SW

Chara.
Clamp

AGC
OP

CC

(Video)

Mix

Amp

DC
F·B

1114910121331521

AP
Amp

AP
Clamp

Y.
Clamp

AP
Clip

20

19

17

23

16

18

Γ

8

7

AGC
Det.

Y·
Cont

Y·

H.Clip

C.BLK
Mix

Low
Clip

Γ

Γ

ALC
Amp

Clamp

WHD
MIX

Vref

AGC

Flicker

Video
out

Clamp

V.Sync
Mix

Amp

G

Pulse
Sep.

GND GND V

■ Absolute Maximum Ratings (Ta=25˚C)

Parameter Symbol Rating Unit

Supply voltage
Supply current
Power dissipation
Operating ambient temperature
Storage temperature

V

CC

I

CC

P

D

T

opr

T

stg

■ Recommended Operating Range (Ta=25˚C)

Parameter Symbol Range

Operating supply voltage range

V

CC

■ Electrical Characteristics (Ta=25˚C)

Parameter minCondition typ max UnitSymbol

OB control (1)
OB control (2)
AGC amp gain (1)
AGC amp gain (2)
ALC DET output

Γ circuit gain (1)
Γ circuit gain (2)

AGC DET output
AP clip (1)
AP clip (2)
YΓ amp gain
Supply current (1)
Supply current (2)
CP1 pulse separation level
WHD pulse separation level
WBL pulse separation level
CP2 pulse separation level
BLK pulse separation level

V

V
G
G

V

GΓ
GΓ

V

AGC/DET

G

G

GYΓ

V
V

V

V

V

OB1

OB2

AGC1

AGC2

ALC

CL1

CL2

I

25

I

33

CP1

WHD

WBL

CP2

BLK

1

2

=5V

V

CC

VCC=5V
V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

=5V

V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

V

=5V

CC

5.5
54

280

–20 to +75

–55 to +125

4.5V to 5.3V

35 55 75 mV
–85
130

–65
170

16 19 22 dB
500 600 700 mV
660 800 940 mV

550 mV

400 480 560 mV

0.9 1.1 1.4 V
–10 dB

1.1 1.3 1.5 V

26.5 31 35.5 mA

9.5 14 18.5 mA

3.4 3.8 4.2 V

2.15 2.55 2.95 V

0.4 0.8 1.2 V

3.1 3.5 3.9 V

0.6 1 1.4 V

–45
210

mA

mW

V

˚C
˚C

PP

mV

PP

mV

PP

PP

PP

PP

PP

PP

PP