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參數(shù)資料
| 型號(hào)： | XRD9814 |
| 廠商： | Exar Corporation |
| 英文描述： | 3-Channel 14-Bit Linear CCD/CIS Sensor Signal Processors(3通道14位線(xiàn)性CCD/CIS 傳感信號(hào)處理器) |
| 中文描述： | 3通道14位線(xiàn)陣CCD /獨(dú)聯(lián)體傳感器信號(hào)處理器（3通道14位線(xiàn)性防治荒漠化公約/獨(dú)聯(lián)體傳感信號(hào)處理器） |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大小： | 29K |
| 代理商： | XRD9814 |
XRDAN307
3
Rev. 1.00
GAIN ADJUSTMENT
The PGA gain is implemented with an 10-bit DAC. For best results, it is recommended
that the gain be adjusted before the offset DAC is used to compensate for any offsets in
the system. The gain equation is:
PGA Gain = (code/1024)*9.0 + 1.0
where code represents the binary contents of the 10-Bit gain setting register.
OFFSET ADJUSTMENT
The offset adjustment is implemented with a gross offset plus a fine offset (8-bit DAC).
After the gain DAC is used to amplify the input, the correct offset value can be deter-
mined by the following equation:
Voc = {(Sensor Offset + Internal Offsets XRD9814/16) * Gain}
Once Voc (See Figure 1) is known, the following total offset (node Vto in Figure 1) can be
used to set the offset register configuration.
Vto = {Gross Offset + Fine Offset}
Set Voc = Vto
Therefore, the input to the A/D (node Vin in Figure 1) is given by the following equation:
Vin = [(Vpix - Vblk) * Gain] + Voc - Vto
For additional information on how to implement the internal offset DAC, see AB302.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRD9815 | () |
| XRD9816B | 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9814B | 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9814BCV | 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9816BCV | 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRD9814ACV | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9814B | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9814BCV | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9816ACV | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9816B | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
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