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| 型号： | AD9992BBCZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 40/92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： | 2,000 |
| 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： | 带卷 (TR) |
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AD9992
Rev. C | Page 45 of 92
VERTICAL TIMING EXAMPLE
To better understand how AD9992 vertical timing generation
is used, consider the example CCD timing chart in Figure 55.
This example illustrates a CCD using a general 3-field readout
technique. As described in the Complete Field: Combining V-
Sequences section, each readout field must be divided into
separate regions to perform each step of the readout. The sequence
change positions (SCP) determine the line boundaries for each
region, and the SEQx registers assign a particular V-sequence to
each region. The V-sequences contain the specific timing
information required in each region: XV1 to XV6 pulses (using
V-pattern groups), HBLK/CLPOB timing, and VSG patterns for
the SG active lines.
This timing example requires four regions for each of the three
fields, labeled Region 0, Region 1, Region 2, and Region 3.
Because the AD9992 allows many individual fields to be pro-
grammed, FIELD0, FIELD1, and FIELD2 can be used to meet
the requirements of this timing example. The four regions for
each field are very similar in this example, but the individual
registers for each field allow flexibility to accommodate other
timing charts.
Region 0 is a high speed, vertical shift region. Sweep mode can
be used to generate this timing operation with the desired
number of high speed vertical pulses needed to clear any charge
from the CCD vertical registers.
Region 1 consists of only two lines and uses standard single-
line, vertical shift timing. The timing of this region is the same
as the timing in Region 3.
Region 2 is the sensor gate line where the VSG pulses transfer
the image into the vertical CCD registers. This region may
require the use of the second V-pattern group for the SG
active line.
Region 3 also uses the standard single-line, vertical shift timing,
the same timing as Region 1. Four regions are required in each
of the three fields.
The timing for Region 1 and Region 3 is essentially the same,
reducing the complexity of the register programming. Other
registers need to be used during the actual readout operation.
These include the MODE registers, shutter control registers
(PRIMARY_ACTION, SUBCK, GPO for MSHUT, and VSUB
control), and AFE gain register.
Important Note Regarding Signal Polarities
When programming the AD9992 to generate the XV1 to XV24
and SUBCK signals, the external V-driver circuit usually inverts
these signals. Carefully check the required timing signals needed
at the input and the output of the V-driver circuit being used and
adjust the polarities of the AD9992 outputs accordingly.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9993BBCZ | 功能描述:IC MIXED-SIGNAL FRONT END 196BGA 制造商:analog devices inc. 系列:- 包装:托盘 零件状态:在售 类型:ADC，DAC 输入类型:LVDS 输出类型:LVDS 接口:SPI 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:196-LFBGA，CSPBGA 供应商器件封装:196-CSPBGA（12x12） 标准包装:1 |
| AD9993BBCZRL | 功能描述:IC MIXED-SIGNAL FRONT END 196BGA 制造商:analog devices inc. 系列:- 包装:带卷（TR） 零件状态:在售 类型:ADC，DAC 输入类型:LVDS 输出类型:LVDS 接口:SPI 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:196-LFBGA，CSPBGA 供应商器件封装:196-CSPBGA（12x12） 标准包装:1,500 |
| AD9993-EBZ | 功能描述:EVAL BOARD MXFE AD9993 制造商:analog devices inc. 系列:* 零件状态:在售 标准包装:1 |
| AD9994 | 制造商:AD 制造商全称:Analog Devices 功能描述:12-Bit CCD Signal Processor with Precision Timing Generator |
| AD9994BCP | 制造商:Analog Devices 功能描述:AFE GEN PURPOSE 12-BIT 64LFCSP - Bulk |
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