- 您現在的位置：買賣IC網 > PDF目錄373973 > AD9995 (Analog Devices, Inc.) 12-Bit CCD Signal Processor with Precision Timing ⑩ Generator PDF資料下載
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： | 32/60頁 |
| 文件大小： | 1593K |
| 代理商： | AD9995 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁當前第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
AD9995
–32–
A/D Converter
The AD9995 uses a high performance ADC architecture
op
timized for high speed and low power. Differential nonlinearity
(DNL) performance is typically better than 0.5 LSB. The ADC
uses a 2 V input range. See TPC 2 and TPC 3 for typical linearity
and noise performance plots for the AD9995.
Optical Black Clamp
The optical black clamp loop is used to remove residual offsets
in the signal chain and to track low frequency variations in the
CCD’s black level. During the optical black (shielded) pixel inter-
val on each line, the ADC output is compared with a fixed black
level reference, selected by the user in the Clamp Level register.
The value can be programmed between 0 LSB and 255 LSB in
256 steps. The resulting error signal is filtered to reduce noise,
and the correction value is applied to the ADC input through a
D/A converter. Normally, the optical black clamp loop is turned
on once per horizontal line, but this loop can be updated more
slowly to suit a particular application. If external digital clamp-
ing is used during the postprocessing, the AD9995 optical black
clamping may be disabled using Bit D2 in the OPRMODE regis-
ter. When the loop is disabled, the Clamp Level register may still
be used to provide programmable offset adjustment.
The CLPOB pulse should be placed during the CCD’s optical
black pixels. It is recommended that the CLPOB pulse dura-
tion be at least 20 pixels wide to minimize clamp noise. Shorter
pulsewidths may be used, but clamp noise may increase, and the
ability to track low frequency variations in the black level will
be reduced. See the Horizontal Clamping and Blanking section
and the Horizontal Timing Sequence Example section for timing
examples.
Digital Data Outputs
The AD9995 digital output data is latched using the DOUT
PHASE register value, as shown in Figure 33. Output data timing
is shown in Figure 8a. It is also possible to leave the output latches
transparent so that the data outputs are valid immediately from
the A/D converter. Programming the AFE CONTROL register bit
D4 to 1 will set the output latches transparent. The data outputs
can also be disabled (three-stated) by setting the AFE CONTROL
register Bit D3 to 1.
The data output coding is normally straight binary, but the
coding my be changed to gray coding by setting the AFE CON-
TROL register Bit D5 to 1.
REV. 0
相關PDF資料 |
PDF描述 |
|---|---|
| ADA4000-2ARMZ-RL | Low Cost, Precision JFET Input Operational Amplifiers |
| ADA4000-1 | Low Cost, Precision JFET Input Operational Amplifiers |
| ADA4000-1_07 | Low Cost, Precision JFET Input Operational Amplifiers |
| ADA4000-1ARZ | Low Cost, Precision JFET Input Operational Amplifiers |
| ADA4000-1ARZ-R7 | Low Cost, Precision JFET Input Operational Amplifiers |
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: |
發布緊急采購，3分鐘左右您將得到回復。