参数资料
型号: AD9992BBCZ
厂商: Analog Devices Inc
文件页数: 22/92页
文件大小: 0K
描述: IC CCD SGNL PROC 12BIT 105CSPBGA
产品变化通告: AD9992 Discontinuation 22/Feb/2012
标准包装: 1
类型: CCD 信号处理器,12 位
输入类型: 逻辑
输出类型: 逻辑
接口: 3 线串口
电流 - 电源: 27mA
安装类型: 表面贴装
封装/外壳: 105-LFBGA,CSPBGA
供应商设备封装: 105-CSPBGA(8x8)
包装: 托盘
AD9992
Rev. C | Page 29 of 92
VERTICAL SEQUENCES (VSEQ)
The vertical sequences are created by selecting one of the V-pattern
groups and adding repeats, start position, horizontal clamping,
and blanking information. The V-sequences are programmed
using the registers shown in Table 14. Figure 35 shows how
the different registers are used to generate each V-sequence.
The VPATSELA, VPATSELB, VPATSELC, and VPATSELD
registers select which V-pattern is used in a given V-sequence.
Having four groups available allows different vertical outputs to
be mapped to different V-patterns. The selected V-pattern group
can have repetitions added for high speed line shifts or for line
binning by using the VREP registers for odd and even lines.
Generally, the same number of repetitions is programmed
into both registers. If a different number of repetitions is required
on odd and even lines, separate values can be used for each
and HBLK section). The VSTARTA and VSTARTB registers
specify where in the line the V-pattern group starts. The
VMASK_EN register is used with the FREEZE/RESUME
registers to enable optional masking of the V-outputs. Either or
both of the FREEZE1/RESUME1 and FREEZE2/RESUME2
registers can be enabled.
The line length (in pixels) is programmable using the HDLEN
registers. Each V-sequence can have a different line length to
accommodate various image readout techniques. The maximum
number of pixels per line is 8192. The last line of the field is
programmed separately using the HDLASTLEN register, which
is located in the field register section.
VREP 3
HD
XV1 TO XV24
V-PATTERN GROUP
1
3
CLPOB
HBLK
2
44
VREP 2
5
6
PROGRAMMABLE SETTINGS FOR EACH VERTICAL SEQUENCE:
1START POSITION IN THE LINE OF SELECTED V-PATTERN GROUP.
2HD LINE LENGTH.
3V-PATTERN SELECT (VPATSEL) TO SELECT ANY V-PATTERN GROUP.
4NUMBER OF REPETITIONS OF THE V-PATTERN GROUP (IF NEEDED).
5START POLARITY AND TOGGLE POSITIONS FOR CLPOB AND PBLK SIGNALS.
6MASKING POLARITY AND TOGGLE POSITIONS FOR HBLK SIGNAL.
05
89
1
-03
5
Figure 35. V-Sequence Programmability
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