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參數(shù)資料
| 型號(hào)： | XRD9824 |
| 廠(chǎng)商： | Exar Corporation |
| 英文描述： | 14-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| 中文描述： | 14位線(xiàn)性獨(dú)聯(lián)體/ CCD傳感器信號(hào)處理器與串行控制 |
| 文件頁(yè)數(shù)： | 8/32頁(yè) |
| 文件大?。?/td> | 283K |
| 代理商： | XRD9824 |
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XRD9824
8
Rev. 2.00
THEORY OF OPERATION
CIS Configuration (Contact Image Sensor)
The XRD9824 has two configurations for CIS applications. Each configuration is set by the control registers
accessed through the serial port.
Mode 1. DC Coupled
If the CIS does not have leading or trailing black pixels as shown in Figure 2, then DC couple the CIS output to the
XRD9824 input.
Optically Shielded
Pixels
Valid Pixels
Adjust the offset of the CIS (-100 mV to 500 mV) by setting the internal registers of the XRD9824 to set the black
pixel value when the LEDs of the CIS are off. When the LEDs are on, use the XRD9824 Programmable Gain to
maximize the ADCs dynamic range. Figure 3 shows a typical application for a CIS with an offset of -100mV to
500mV.
Figure 2. Typical Output CIS Mode
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRD9824ACD | 14-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9825 | 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9825ACD | 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9825ACU | 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9826ACD | 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRD9824ACD | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:14-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9824ACD-F | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| XRD9824ACU | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| XRD9825 | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9825ACD | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
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