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參數(shù)資料
| 型號(hào)： | TLDR4900 |
| 廠(chǎng)商： | VISHAY SEMICONDUCTORS |
| 元件分類(lèi)： | 參考電壓二極管 |
| 英文描述： | LED Uni-Color Red 650nm 2-Pin T-1 |
| 中文描述： | Standard LED - Through Hole Red Clear Non-Diff |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大小： | 604K |
| 代理商： | TLDR4900 |
PI0512WS Page 4 of 8 – July 26, 2001
D
D
P
P
P
P
D
D
EOS
EOS
AVIDEO
RESET
BIAS
SHIFT REGISTER
START
CLK
START
CLK
PI0512WS
VDD
Note: Quantum Efficiency (QE) can be calculated by dividing the responsivity by the area of
the sensor's element and multiplying the resulting ratio by the energy per photon in electron
volts (eV).
The dark current is typically about 1 pA at 25
o
C and will vary as function of temperature. The
dark current will contribute dark-signal charges and these charges will increase as direct
function of integration time and superimpose on the image signal charges.
Self-Scanning Circuit
Figure 5 shows a simplified electrically equivalent circuit diagram of the photodiode array.
Every photodiode in the array is connected to a common output video line by a MOS switch.
Impinging photons generate charge that is collected on each imaging photodiode when the
switch is open. As the shift register sequentially closes each MOS switch, the stored charge,
which is proportional in amount to the light exposure, from each corresponding photodiode is
readout onto the video line. The output charge on the video line from each photodiode pixel is
typically sensed by an external charge-integrating amplifier. The shift register is activated with
the entry of the start pulse. This pulse propagates through each shift register stage and
activates the MOS switches sequentially. When the pulse reaches the last shift register stage,
the fourth and last dummy pixel is readout and end-of-scan (EOS) output is held high for one
clock cycle.
Figure 5. Simplified circuit diagram of PI0512WS photodiode array.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLDR4900 | 制造商:Vishay Intertechnologies 功能描述:LED 3MM RED |
| TLDR4900-CS21Z | 制造商:Vishay Angstrohm 功能描述:LED Uni-Color Red 650nm 2-Pin T-1 |
| TLDR4901 | 功能描述:標(biāo)準(zhǔn)LED-通孔 Red Clear Non-Diff 63-200mcd@20mA RoHS:否 制造商:Vishay Semiconductors 照明顏色:Red 光強(qiáng)度:0.7 mcd 波長(zhǎng)/色溫:615 nm 顯示角:45 deg 透鏡顏色/類(lèi)型:Clear, Non-Diffused 正向電流:70 mA 正向電壓:1.83 V to 3.03 V LED 大小:2 mm 系列: 封裝:Tube |
| TLDR5400 | 功能描述:標(biāo)準(zhǔn)LED-通孔 Red Tinted Diffused RoHS:否 制造商:Vishay Semiconductors 照明顏色:Red 光強(qiáng)度:0.7 mcd 波長(zhǎng)/色溫:615 nm 顯示角:45 deg 透鏡顏色/類(lèi)型:Clear, Non-Diffused 正向電流:70 mA 正向電壓:1.83 V to 3.03 V LED 大小:2 mm 系列: 封裝:Tube |
| TLDR5400 | 制造商:Vishay Intertechnologies 功能描述:LED 5MM RED |
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