
Description
The CXD1257AR generates the timing pulses
required by the CCD image sensors as well as signal
processing circuits.
Features
NTSC and PAL compatible
Electronic shutter function
H-driver
Compatible with digital and analog camera systems
Standby function
Applications
CCD cameras
Structure
Silicon gate CMOS IC
Applicable CCD Image Sensors
ICX026CKA, ICX027CKA
ICX054AK, ICX055AK
ICX056AK
Absolute Maximum Ratings
(Ta = 25°C)
Supply voltage
Input voltage
Output voltage
Operating temperature Topr
Storage temperature
V
DD
V
I
Vss – 0.5 to V
DD
+ 0.5 V
V
O
Vss – 0.5 to V
DD
+ 0.5 V
–20 to +75
Tstg
–55 to +150
Vss – 0.5 to +7.0
V
°C
°C
Recommended Operating Conditions
Supply voltage
Operating temperature Topr
V
DD
5.0 ± 0.25
–20 to +75
V
°C
– 1 –
CXD1257AR
E91817B4X-PK
CCD Camera Timing Generator
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
64 pin LQFP (Plastic)
AA
AA
AA
AA
AA
AA
AA
AA
8
15 16 17 18 19 20
21
24 25
28 40
56
4
5
6
7
9
11
12
13
14
23
36
61
22
37
41
42
43
44
45
46
57
59
60
62
GATE
1/2
SYNC
GEN
3
10
26 27
29
30
39
38
35
34
31 32 33
47 48 49 50 51 52 53
54
55
58
2
64
1
H – ROM
LATCH
ADR . COUNT
V – ROM
LATCH
ROG – ROM
LATCH
MODE
SET
GATE
GATE
DRIVER
GATE
SHUT
ROM
63
V
SS
V
DD
HTSG
VD INITIALIZE
HD INITIALIZE
HIGH-SPEED
PULSE
GENERATION
CIRCUIT
DECODER
COUNTER
MICROCOMPUTER
CONTROLLER
DECODER
Block Diagram