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參數(shù)資料
| 型號： | XRD9824ACD |
| 廠商： | EXAR CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | 14-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)： | 18/32頁 |
| 文件大?。?/td> | 283K |
| 代理商： | XRD9824ACD |
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XRD9824
18
Rev. 2.00
Figure 12. Timing Diagram for Figure 11
CCD Configuration (Charge Coupled Device)
Mode 1. AC Coupled
In the CCD configuration of operation, an external
capacitor needs to be chosen according to the equa-
tions below. The typical value for the external capaci-
tor is 100pF. This value should be adjusted according
to the time constant (Tc) needed in a particular appli-
cation. The CLAMP pin has an internal 150 ohm
impedance (R
INT
) which is in series with the external
capacitor (C
EXT
Therefore, Tc =1/R
INT
C
EXT
If the input to the external capacitor has a load imped-
ance (R
EXT
), then
T
c
=1/(R
INT
+R
EXT
)C
EXT
When CLAMP (clamp) pin is set high an internal switch
allows one side of the external capacitor to be set to
VRT (Figure 13). This value corresponds to the black
reference of the CCD. When the CLAMP pin is set
back to low, the ADC samples the video signal with
respect to the black reference. The difference between
the black reference and the video signal is the actual
pixel value of the video content. Since this value is
referenced to the top ladder reference voltage of the
ADC a zero input signal would yield a full scale output
code. Therefore, the output of the conversion is
inverted (internally) to correspond to zero scale output
code.
CIS Rotating Gain and Offset
Line-By-Line (Md 11)
ADCCLK
CIS
SYNCH
GAIN/
OFFSET
LD
Red Pixel Line Scan
Grn Pixel Line Scan
Blu Pixel Line Scan
Red Gain/Offset Cycle
Grn Gain/Offset Cycle
Blu Gain/Offset Cycle
Reset Internal Mux Color to Red Channel (LD = 110YYYYYY11)
tsa
tsypw
Note:
Y = Previous State
Tri-State (SYNCH = LO)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 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 |
| XRD9825 | 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 |
| XRD9825ACD | 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 |
| 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 |
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