Outline Of Circuit Description - Sanyo VPC-A5 Service Manual

1. OUTLINE OF CIRCUIT DESCRIPTION

1-1. CA1 CIRCUIT DESCRIPTION
1. IC Configuration
IC903 (MN39620PJJ-A) CCD imager
IC901 (AN20101A) V driver
IC905 H driver, CDS, AGC, A/D converter
2. IC903 (CCD imager)
[Structure]
Interline type CCD image sensor
Image size
Pixels in total
Effective pixels
Symbol
Pin No.
1 VØV
6
VØV
5B,
2, 3
VØV
5A
VØV VØV
4, 2,
4, 7, 8
VØV
1
VØV
3B,
5, 6
VØV
3A
9, 13
PW
10
VO
11
VOD
12
VØRG
14
VSUB
15
SUBSW
16 VPT
17
VØH
1
18
VØH
2
Diagonal 6.67 mm (1/2.7 type)
2690 (H) x 1994 (V)
2576 (H) x 1925 (V)
Pin Description
Vertical register transfer clock
Vertical register transfer clock
Vertical register transfer clock
Vertical register transfer clock
GND
Signal output
Circuit power
Reset gate clock
Substrate clock
Substrate voltage bias
Protection transistor bias
Horizontal register transfer clock
Horizontal register transfer clock
Table 1-1. CCD Pin Description
VO
10
OD
11
PW
13
Horizontal shift register
12
Fig. 1-1. CCD Block Diagram
Waveform
GND
DC
DC
DC
DC
– 2 –
VøV6
1
2 VøV5B
3 VøV5A
VøV4
4
5 VøV3B
6 VøV3A
VøV2
7
VøV1
8
9 PW
14 VSUB
15 SUBSW
16 VPT
17 18
: Photo diode
Voltage
-6.0 V, 0 V
-6.0 V, 0 V, 12 V
-6.0 V, 0 V
-6.0 V, 0 V, 12 V
0 V
Aprox. 6 V
12 V
2 V, 6 V
Aprox. 6 V
Aprox. 0 V
(Different from every CCD)
-6.0 V
0 V, 3.3 V
0 V, 3.3 V
When sensor read-out