參數(shù)資料
型號: AD9948KCPZ
廠商: Analog Devices Inc
文件頁數(shù): 10/28頁
文件大小: 0K
描述: IC CCD SIGNAL PROCESSOR 40-LFCSP
標(biāo)準(zhǔn)包裝: 1
類型: CCD 信號處理器,10 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: 托盤
REV. 0
–18–
AD9948
UP TO FOUR INDIVIDUAL HORIZONTAL CLAMP AND BLANKING REGIONS MAY BE
PROGRAMMED WITHIN A SINGLE FIELD, USING THE SEQUENCE CHANGE POSITIONS.
SEQUENCE CHANGE OF POSITION 1
SEQUENCE CHANGE OF POSITION 2
SEQUENCE CHANGE OF POSITION 3
SINGLE FIELD (1 VD INTERVAL)
CLAMP AND PBLK SEQUENCE REGION 0
SEQUENCE CHANGE OF POSITION 0
(V-COUNTER = 0)
CLAMP AND PBLK SEQUENCE REGION 3
CLAMP AND PBLK SEQUENCE REGION 2
CLAMP AND PBLK SEQUENCE REGION 1
Figure 12. Clamp and Blanking Sequence Flexibility
Table XV. External HBLK Register Parameters
Register
Length
Range
Description
HBLKDIR
1b
High/Low
Specifies HBLK Internally Generated or Externally Supplied.
1 = External.
HBLKPOL
1b
High/Low
External HBLK Active Polarity.
0 = Active Low.
1 = Active High.
HBLKEXTMASK
1b
High/Low
External HBLK Masking Polarity.
0 = Mask H1 Low.
1 = Mask H1 High.
000
1
2
111
0
3
11
00
01234
5
6
7
8
9
10
11
12
14
15
0
1
2
3
02
3
H-COUNTER
RESET
VD
NOTES
1. INTERNAL H-COUNTER IS RESET SEVEN CLI CYCLES AFTER THE HD FALLING EDGE (WHEN USING VDHDEDGE = 0).
2. TYPICAL TIMING RELATIONSHIP: CLI RISING EDGE COINCIDES WITH HD FALLING EDGE.
3. PxGA STEERING IS SYNCHRONIZED WITH THE RESET OF THE INTERNAL H-COUNTER (MOSAIC SEPARATE MODE IS SHOWN).
HD
XX
X
PxGA GAIN
REGISTER
CLI
XX
X
H-COUNTER
(PIXEL COUNTER)
X
Figure 13. H-Counter Synchronization
H-COUNTER SYNCHRONIZATION
The H-Counter reset occurs seven CLI cycles following the HD
falling edge. The PxGA steering is synchronized with the reset
of the internal H-Counter (see Figure 13).
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