Ver1.0
A1 PROs
1
A1 PROs
Ai4402
Signal Processor for CCD Monochrome Camera
Description
The
Ai4402
is designed to perform the
basic
signal
processing
in
CCD
monochrome camera
through a single chip. This bipolar IC is
most suitable for compact usage and low
power consumption.
Pin Configuration
SHP
OP OUT
AGC CONT
Vcc1
AGC MAX
DET OUT
AGC OUT
γ
IN
γ
CLP
LINEAR
SYNC
DRIVER IN
GND2
GND1
DC CONT
WC CONT
SAG
γ
OUT
OP IN+
OP IN-
DATA
SHD
PG
CLP2
GND3
IRIS
IRIS CLP
BLK
CLP1
Vcc2
VIDEO
Feature
•
Processing from CCD output to 75¥
Ø
video
output with a single chip
•
Wide variable AGC (1 to 32 dB Typ.)
•
Built-in operational amplifier for AGC loop
•
75¥
Ø
line capacitance minimized using sag
compensation function
•
Variable white clip level realize wide
dynamic range (140 IRE)
•
32pin TQFP
Ai4402
Application
CCD monochrome camera
32 PIN TQFP
(Top view)
Absolute Maximum Ratings
(Ta = 25
¡ É
)
Symbol
Vcc
T
STG
T
OPR
P
D
Parameter
Supply Voltage
Storage Temperature
Operating Temperature
Allowable Power Dissipation
Rating
7
-65 ~ +150
-20 ~ +75
500
Unit
V
¡ É
¡ É
§ Ñ
Operating Conditions
Symbol
Vcc
Parameter
Supply Voltage
Rating
4.75 ~ 5.25
Unit
V
Block Diagram
CLP2
25
SHP
24
S/H
SHD1
21
S/H
S/H
AGC AGC AGC
¥ ã ¥ ã
LP
IN C
MAX CONT OUT
14 16
12
11
10
OP OUT
17
DATA
22
GND3
26
IRIS
27
Vcc1
15
GND1
3
CLP2
BLK
CLP1
¥ã
1
¥ã
2
28
9
8
IRIS LINEAR
CLP
OUT
DRIVE IN
-
+
PG
23
CLP2
_
+
CLP1
BLK
NC
AGC
18
OP-
19
OP+
13
DET OUT
31
VCC2
+
_
7
CLP1
WC
DC
BLK
SYNC
DRIVE
32
VIDEO
1
2
SAG
GND2
6
5
4
30
29
WC
DC SYNC CLP1 BLK
CONT CONT
1
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