參數資料
型號： CXD3406GA
廠商： Sony Corporation
英文描述： Silver Mica Capacitor; Capacitance:30000pF; Capacitance Tolerance:+/- 2%; Series:CD42; Voltage Rating:500VDC; Capacitor Dielectric Material:Mica; Termination:Radial Leaded; Lead Pitch:27mm; Leaded Process Compatible:Yes RoHS Compliant: Yes
中文描述： 時序發(fā)生器和幀讀出CCD圖像傳感器信號處理器
文件頁數： 25/46頁
文件大?。?/td> 384K
代理商： CXD3406GA
–
25
–
CXD3406GA
Control data/shutter data: [Electronic shutter]
The CXD3406GA realizes various electronic shutter functions by using control data D13 to D14 SMD and
shutter data D10 to D19 SVD, D20 to D31 SHD and D32 to D41 SPL.
These functions are described in detail below.
First, the various modes are shown below.
These modes are switched using control data D13 to D14 SMD.
D14
0
0
1
1
D13
0
1
0
1
Description of operation
Electronic shutter stopped mode
High-speed/low-speed shutter mode
HTSG control mode
The electronic shutter data is expressed as shown in the table below using D20 to D31 SHD as an example.
However, MSB (D31) is a reserve bit for the future specification, and it is handled as a dummy on this IC.
MSB
LSB
D29
D28
D31
D30
D27
D26
D25
D24
D23
D22
D21
D20
1
1
0
0
↓
C
X
0
0
1
↓
1
0
0
1
1
↓
3
SHD is expressed as 1C3h .
[Electronic shutter stopped mode]
During this mode, all shutter data items are invalid.
SUB is not output in this mode, so the shutter speed is the accumulation time for one field.
[High-speed/low-speed shutter mode]
During this mode, the shutter data items have the following meanings.
The period during which SVD and SHD are specified together is the shutter speed. Concretely, when
specifying high-speed shutter, SVD is set to "000h". (See the figure.) During low-speed shutter, or in other
words when SVD is set to "001h" or higher, the serial interface data is not loaded until this period is finished.
The vertical period indicated here corresponds to one field in each drive mode. In addition, the number of
horizontal periods applied to SHD can be considered as (number of SUB pulses
–
1). However, in the frame
mode A field, it matches (number of SUB pulses + 1). This is a specification for flickerless when the same
mode is repeated. But this change may not occur because of flickerless depending on the conditions during
low-speed shutter.
Note)
The bit data definition area is assured in terms of the CXD3406GA functions, and does not assure the
CCD characteristics.
Symbol
SVD
SHD
SPL
Data
D10 to D19
D20 to D31
D32 to D41
Description
Number of vertical periods specification (000h
≤
SVD
≤
3FFh)
Number of horizontal periods specification (000h
≤
SHD
≤
7FFh)
Vertical period specification for high-speed shutter operation (000h
≤
SPL
≤
3FFh)
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