參數(shù)資料
型號: AD9847AKSTZ
廠商: Analog Devices Inc
文件頁數(shù): 11/28頁
文件大?。?/td> 0K
描述: IC CCD SIGNAL PROC 10BIT 48-LQFP
標準包裝: 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: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 托盤
REV. A
AD9847
–19–
HD
HBLK
..
.
. . .
H1/H3
H2/H4
. . .
THE POLARITY OF H1 DURING BLANKING IS PROGRAMMABLE (H2 IS OPPOSITE POLARITY OF H1)
Figure 11. HBLK Masking Control
Horizontal Sequence Control
The AD9847 uses sequence change positions (SCP) and sequence
pointers (SPTR) to organize the individual horizontal sequences.
Up to four SCPs are available to divide the readout into four
separate regions, as shown in Figure 12. The SCP 0 is always
hard-coded to line 0, and SCP1–3 are register programmable.
During each region bounded by the SCP, the SPTR registers
designate which sequence is used by each signal. CLPOB, CLPDM,
PBLK, and HBLK each have a separate set of SCP. For example,
CLPOBSCP1 will define Region 0 for CLPOB, and in that region
any of the four individual CLPOB sequences may be selected
with the CLPOBSPTR registers. The next SCP defines a new
region, and in that region each signal can be assigned to a different
individual sequence. The sequence control registers are summarized
in Table VI.
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 VI. Horizontal Sequence Control Parameters for CLPOB, CLPDM, PBLK, and HBLK
Register Name
Length
Range
Description
SCP1–SCP3
12b
0–4095 Line Number
CLAMP/BLANK SCP to Define Horizontal Regions 0–3
SPTR0–SPTR3
2b
0–3 Sequence Number
Sequence Pointer for Horizontal Regions 0–3
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