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參數資料
| 型號： | AD9949AKCPZRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Circular Connector; No. of Contacts:61; Series:MS27474; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:24-61 RoHS Compliant: No |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC40 |
| 封裝： | 6 X 6 MM, LEAD FREE, MO-220-VJJD-2, LFCSP-40 |
| 文件頁數： | 11/36頁 |
| 文件大小： | 707K |
| 代理商： | AD9949AKCPZRL |
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AD9949
SYSTEM OVERVIEW
Rev. B | Page 11 of 36
CCD
SERIAL
INTERFACE
DOUT
DIGITAL IMAGE
PROCESSING
ASIC
V-DRIVER
HD, VD
CLI
V1 TO Vx, VSG1 TO VSGx, SUBCK
H1 TO H4, RG
CCDIN
AD9949
INTEGRATED
AFE + TD
0
Figure 11. Typical Application
Figure 11 shows the typical system application diagram for the
AD9949. The CCD output is processed by the AD9949’s AFE
circuitry, which consists of a CDS, a PxGA, a VGA, a black level
clamp, and an ADC. The digitized pixel information is sent to
the digital image processor chip where all postprocessing and
compression occurs. To operate the CCD, CCD timing
parameters are programmed into the AD9949 from the image
processor through the 3-wire serial interface. From the system
master clock, CLI, provided by the image processor, the
AD9949 generates the high speed CCD clocks and all internal
AFE clocks. All AD9949 clocks are synchronized with VD and
HD. The AD9949’s horizontal pulses (CLPOB, PBLK, and
HBLK) are programmed and generated internally.
The H-drivers for H1 to H4 and RG are included in the
AD9949, allowing these clocks to be directly connected to the
CCD. The H-drive voltage of 3 V is supported in the AD9949.
Figure 12 shows the horizontal and vertical counter dimensions
for the AD9949. All internal horizontal clocking is programmed
using these dimensions to specify line and pixel locations.
H-COUNTER BEHAVIOR
When the maximum horizontal count of 4096 pixels is
exceeded, the H-counter in the AD9949 rolls over to zero and
continues counting. It is, therefore, recommended that the
maximum counter value not be exceeded.
However, the newer AD9949A version behaves differently. In
the AD9949A, the internal H-counter holds at its maximum
count of 4095 instead of rolling over. This feature allows the
AD9949A to be used in applications containing a line length
greater than 4096 pixels. Although no programmable values for
the horizontal blanking or clamping are available beyond pixel
4095, the H, RG, and AFE clocking continues to operate,
sampling the remaining pixels on the line.
MAXIMUM FIELD DIMENSIONS
12-BIT HORIZONTAL = 4096 PIXELS MAX
12-BIT VERTICAL = 4096 LINES MAX
0
Figure 12. Vertical and Horizontal Counters
VD
HD
CLI
MAX HD LENGTH IS 4095 PIXELS
0
MAX VD LENGTH IS 4095 LINES
Figure 13. Maximum VD/HD Dimensions
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相關代理商/技術參數 |
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| AD9949BCBZRL | 制造商:Analog Devices 功能描述: |
| AD9949KCP | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 40-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:12 BIT 36 MSPS, 3 V ANALOG FRONT END - Bulk |
| AD9949KCPRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 40-Pin LFCSP EP T/R 制造商:Rochester Electronics LLC 功能描述:12 BIT 36 MSPS, 3 V ANALOG FRONT END - Tape and Reel |
| AD9949KCPZ | 功能描述:IC CCD SIGNAL PROCESSOR 40-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 |
| AD9949KCPZRL | 功能描述:IC CCD SIGNAL PROCESSOR 40-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 |
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