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參數(shù)資料
| 型號： | XRD9825ACD |
| 廠商： | EXAR CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | 0.300 INCH, SOIC-20 |
| 文件頁數(shù)： | 27/33頁 |
| 文件大?。?/td> | 309K |
| 代理商： | XRD9825ACD |
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XRD9825
27
Rev. 1.00
Serial Load Control Registers
The serial load registers are controlled by a three wire
serial interface through the bi-directional parallel port to
reduce the pin count of this device. When SYNCH is set
to high, the output bus is tri-stated and the serial
interface is activated. DB7/LD, DB5/SCLK and DB6/
SDATA are the three input signals that control this
process. The DB7/LD signal is set low to initiate the
loading of the internal registers.
There are internal registers that are accessed via an 11-
bit data string. Data is shifted in on the rising edge of
SCLK and loaded to the registers on the rising edge of
LD. The data on pin DB6/SDATA is latched automati-
cally after eleven DB5/SCLKs have been counted. If
eleven clocks are not present on DB5/SCLK before the
DB7/LD signal returns high, no data will be loaded into
the internal registers. If more than 11 clocks are
present on DB5/SCLK, the additional clocks will be
ignored. The data corresponding to the first eleven
DB5/SCLKs will be loaded only.
The first three MSBs choose which internal register will
be selected. The remaining 8 LSBs contain the data
needed for programming the internal register for a
particular configuration.
Power-Up State of the Internal Registers
The control register settings upon initial power-up are
for CIS, DC Coupled configuration (VRT is set to
internal, Input DC Reference=AGND and the input to
the ADC is selected through the RED channel). Gain is
unity and Offset is set to zero. The test modes are
disabled in the power-up state.
DB6/SDATA
DB5/SCLK
SYNCH
S2
S1
S0
D7
D2
D1
D0
DB7/LD
tdl
tdz
tsclkw
tds tdh
Figure 21. Write Timing
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRD9825ACD-F | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRD9825ACU | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRD9825EVAL | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 XRD9825 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| XRD9826 | 制造商:EXAR 制造商全稱:EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9826ACD | 制造商:EXAR 制造商全稱:EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
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