參數(shù)資料
型號: XRD9826ACD
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): 8/33頁
文件大?。?/td> 292K
代理商: XRD9826ACD
XRD9826
8
Rev. 1.00
THEORY OF OPERATION
CIS Configuration (Contact Image Sensor)
The XRD9826 has two configurations for CIS applica-
tions. 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 XRD9826 input.
Optically Shielded
Pixels
Valid Pixels
Figure 2. Typical Output CIS Mode
Adjust the offset of the CIS (-100 mV to 500 mV) by
setting the internal registers of the XRD9826 to set the
black pixel value when the LEDs of the CIS are off.
When the LEDs are on, use the XRD9826 Program-
mable Gain to maximize the ADCs dynamic range.
Figure 3, shows a typical application for a CIS with an
offset of -100mV to 500mV.
相關(guān)PDF資料
PDF描述
XRD9826 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control(16位線性CIS/CCD傳感信號處理器(帶串行控制))
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XRD9827 12-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control(12位線性CIS/CCD傳感信號處理器(帶串行控制))
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XRD9826ACD-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 輸入類型:Differential 信噪比:107 dB 接口類型: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
XRD9826ACU 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 輸入類型:Differential 信噪比:107 dB 接口類型: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
XRD9826ACU-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 輸入類型:Differential 信噪比:107 dB 接口類型: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
XRD9826ACUTR 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 輸入類型:Differential 信噪比:107 dB 接口類型: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
XRD9827 制造商:EXAR 制造商全稱:EXAR 功能描述:12-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control