AN2050FB Datasheet, PDF (1/4 Pages) Panasonic Semiconductor – CCD Monochrome Video Camera Signal Processor IC

AN2050FB
CCD Monochrome Video Camera Signal Processor IC
s Overview
The AN2050FB is an integrated circuit specified to
the monochrome CCD image element which is em-
10.0±0.3
33
ployed in the monitoring video cameras, door phones,
34
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.
44
23
22
Unit:mm
12
s 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
1
11
12.3±0.4
(0.55)
44-Pin QUADFLAT Package (QFP044-P-1010)
s Block Diagram
VCC
(DS)
34 33 35
32 31 29 26 28 27 24
4
21 5
6
22
25
37 Clamp
30
ALC
38 _DET
S.H
ALCG
Amp
ALC
Amp
Clamp
WHD
MIX
AGC
Flicker
Clamp
AGC
Det.
Y·Γ
Cont
Y·Γ
–
+
AGC
OP
Vref
DC
F·B
20
AP
Amp
19
17
GND ₃₆
(DS)
39
41
40
42
43
DC
F··B
–
+
–
+
Pulse
Sep.
Vref
H.Clip
Video
out
V.Sync
Mix
C.BLK
Mix
Low
Clip
Chara.
Mix
Chara.
SW
Chara.
Clamp
23
AP
Clamp
16
AP
Clip
18
Mix
Y.Γ
Clamp
8
Amp
DC
F·B
7
44
1
2
15 3
13
GND
12
10
GND
9
14
11
VCC (Video)