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參數資料
| 型號： | AD9995 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 12-Bit CCD Signal Processor with Precision Timing ⑩ Generator |
| 中文描述： | 12位CCD信號處理器與精密計時⑩發生器 |
| 文件頁數： | 9/60頁 |
| 文件大小： | 1593K |
| 代理商： | AD9995 |
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AD9995
–9–
SYSTEM OVERVIEW
Figure 1 shows the typical system block diagram for the AD9995
used in Master mode. The CCD output is processed by the
AD9995’s AFE circuitry, which consists of a CDS, VGA, black
level clamp, and A/D converter. The digitized pixel information
is sent to the digital image processor chip, which performs the
postprocessing and compression. To operate the CCD, all CCD
timing parameters are programmed into the AD9995 from the
system microprocessor through the 3-wire serial interface. From
the system master clock, CLI, provided by the image processor
or external crystal, the AD9995 generates all of the CCD’s hori-
zontal and vertical clocks and all internal AFE clocks. External
synchronization is provided by a SYNC pulse from the micropro-
cessor, which will reset internal counters and resync the VD and
HD outputs.
Alternatively, the AD9995 may be operated in Slave mode, in
which VD and HD are provided externally from the image pro-
cessor. In this mode, all AD9995 timing will be synchronized
with VD and HD.
CCDIN
MSHUT
STROBE
H1–H4, RG, VSUB
V1–V6, VSG1–VSG5, SUBCK
CCD
V-DRIVER
AD9995
AFETG
DIGITAL
IMAGE
PROCESSING
ASIC
DOUT
DCLK
HD, VD
CLI
SERIAL
INTERFACE
SYNC
The H-drivers for H1–H4 and RG are included in the AD9995,
allowing these clocks to be directly connected to the CCD.
H-drive voltage of up to 3.3 V is supported. An external V-driver
is required for the vertical transfer clocks, the sensor gate pulses,
and the substrate clock.
The AD9995 also includes programmable MSHUT and
STROBE outputs, which may be used to trigger mechanical
shutter and strobe (flash) circuitry.
Figures 2 and 3 show the maximum horizontal and vertical
counter dimensions for the AD9995. All internal horizontal and
vertical clocking is controlled by these counters to specify line
and pixel locations. Maximum HD length is 4095 pixels per line,
and maximum VD length is 4095 lines per field.
12-BIT HORIZONTAL = 4096 PIXELS MAX
12-BIT VERTICAL = 4096 LINES MAX
MAXIMUM
FIELD
DIMENSIONS
Figure 2. Vertical and Horizontal Counters
VD
HD
MAX VD LENGTH IS 4095 LINES
CLI
MAX HD LENGTH IS 4095 PIXELS
Figure 3. Maximum VD/HD Dimensions
REV. 0
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9995KCP | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 56-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:12 BIT 36 MSPS ANALOG FRONT END CONVERTE - Bulk |
| AD9995KCPRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 56-Pin LFCSP EP T/R 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD9995KCPZ | 功能描述:IC CCD SIGNAL PROCESSOR 56-LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| AD9995KCPZRL | 功能描述:IC CCD SIGNAL PROCESSOR 56-LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| AD9995KCPZRL7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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