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參數(shù)資料
| 型號： | AD9949KCPZRL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 20/36頁 |
| 文件大小： | 0K |
| 描述： | IC CCD SIGNAL PROCESSOR 40-LFCSP |
| 標準包裝： | 2,500 |
| 類型： | CCD 信號處理器，12 位 |
| 輸入類型： | 邏輯 |
| 輸出類型： | 邏輯 |
| 接口： | 3 線串口 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 40-LFCSP |
| 包裝： | 帶卷 (TR) |
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AD9949
Rev. B | Page 27 of 36
COLOR
STEERING
CONTROL
4:1
MUX
GAIN0
GAIN1
GAIN2
GAIN3
PxGA
PxGA STEERING
MODE
SELECTION
VD
HD
PxGA GAIN
REGISTERS
CONTROL
REGISTER
BITS D0 TO D1
SHP/SHD
VGA
CDS
03751-030
8
4:1
MUX
2
3
Figure 29. PxGA Block Diagram
LINE0
GAIN0, GAIN1, GAIN0, GAIN1, ...
R
Gr
LINE1
LINE2
GAIN2, GAIN3, GAIN2, GAIN3, ...
GAIN0, GAIN1, GAIN0, GAIN1, ...
COLOR STEERING MODE:
PROGRESSIVE
R
RGr
Gr
Gb
B
CCD: PROGRESSIVE BAYER
Gb
B
Gb
B
Gb
B
03751-031
Figure 30. CCD Color Filter Example—Progressive Scan
The same Bayer pattern can also be interlaced, and the
interlaced mode should be used with this type of CCD (see
Figure 31). The color steering performs the proper multiplexing
of the R, G, and B gain values (loaded into the PxGA gain
registers) and is synchronized by the user with vertical (VD)
and horizontal (HD) sync pulses. For timing information,
see Figure 34.
LINE0
GAIN0, GAIN1, GAIN0, GAIN1, ...
RR
Gr
LINE1
LINE2
GAIN0, GAIN1, GAIN0, GAIN1, ...
Gb
BB
LINE0
GAIN2, GAIN3, GAIN2, GAIN3, ...
LINE1
LINE2
GAIN2, GAIN3, GAIN2, GAIN3, ...
COLOR STEERING MODE:
INTERLACED
Gb
BB
Gb
BB
Gb
BB
RR
Gr
RR
Gr
RR
Gr
EVEN FIELD
ODD FIELD
CCD: INTERLACED BAYER
03751-032
Figure 31. CCD Color Filter Example—Interlaced Readout
A third type of readout uses the Bayer pattern divided into three
different readout fields. The 3-field mode should be used with
this type of CCD (see Figure 32). The color steering performs
the proper multiplexing of the R, G, and B gain values (loaded
into the PxGA gain registers) and is synchronized by the user
with vertical (VD) and horizontal (HD) sync pulses. For timing
information, see Figure 35.
LINE0
GAIN0, GAIN1, GAIN0, GAIN1, ...
R
Gr
LINE1
LINE2
GAIN2, GAIN3, GAIN2, GAIN3, ...
GAIN0, GAIN1, GAIN0, GAIN1, ...
LINE0
GAIN2, GAIN3, GAIN2, GAIN3, ...
LINE1
LINE2
GAIN0, GAIN1, GAIN0, GAIN1, ...
GAIN2, GAIN3, GAIN2, GAIN3, ...
COLOR STEERING MODE:
THREE FIELD
Gb
B
Gb
B
R
Gr
FIRST FIELD
SECOND FIELD
CCD: 3-FIELD READOUT
LINE0
GAIN0, GAIN1, GAIN0, GAIN1, ...
R
Gr
LINE1
LINE2
GAIN2, GAIN3, GAIN2, GAIN3, ...
GAIN0, GAIN1, GAIN0, GAIN1, ...
R
Gr
THIRD FIELD
Gb
B
Gb
B
R
Gr
R
Gr
Gb
B
R
Gb
R
Gb
R
Gb
B
Gr
B
Gr
B
Gr
B
03751-033
Figure 32. CCD Color Filter Example—Three-Field Readout
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