Circuit Description; Ccd Block Diagram - Nikon Coolpix 5400 Repair Manual

1. CIRCUIT DESCRIPTION

1-1. OUTLINE OF CIRCUIT DESCRIPTION
1. Outline
The CP1 PCB is mainly composed of the following ICs:
IC903 (ICX452AQ) CCD imager
IC904 (CXD34400EN) V driver
IC905 (AD9849AKST) CDS, AGC, A/D converter,
2. IC903 (CCD)
[Structure]
• Interline type CCD image sensor
• Optical size: 1/1.8 type
• Effective pixels: 2616 (H) × 1960 (V)
• Total pixels: 2668 (H) × 1970 (V)
• Optical black
Horizontal (H) direction: 12 pixels on front and 40
pixels on rear
Vertical (V) direction: 8 pixels on front and 2 pixels
on rear
• Dummy bits: Horizontal 28 Vertical 1 (only third
fi eld)
Pin No. Symbol
Vø
1
1, 3, 4
Vø , Vø
3A 3B
2, 5 Vø , Vø
2 4
6, 7 Vø , Vø
5A 5B
8 Vø
6
9, 10 GND
11 V
OUT
12 V
DD
13 øRG
20, 14 Hø , Hø
2A 2B
19, 15 Hø , Hø
1A 1B
16 ø
SUB
17 C
SUB
18 V
L
H driver
Pin Description
Vertical register transfer clock
Vertical register transfer clock
Vertical register transfer clock
Vertical register transfer clock
GND
Signal output
Circuit power supply
Reset gate clock
Horizontal register transfer
clock
Horizontal register transfer
clock
PCB clock
PCB voltage bias
Protection transistor bias
Table 1-1. CCD Pin Description
- E1 E5400 -
V
12
H
Pin 11
Fig. 1-1. Optical black arrangement (Top View)
10 9 8 7 6
G
R
G
R
G
R
G
R
Horizontal register
水平レジスタ
11
12 13 14 15
Fig. 1-2. CCD block diagram
Waveform
GND
DC
DC
DC
DC
Pin 1
2
8
40
5 4 3 2 1
B
G
B
G R
G
B G
B
G R
G
B G
B
G
R
G
B G
B
G R
(Note)
G （注）
17 20
16 18 19
(Note) Photo sensor
（注）: フォトセンサー
Voltage
-7.5V, 0V, 15V
-7.5V, 0V
-7.5V ,0V, 15V
-7.5V, 0V
0V
Approx. 10V
15V
12.5V, 16V
0V, 3.3V
0V, 3.3V
Approx. 8V
Approx. 8V
(Different from every CCD)
-7.5V
When sensor read-out