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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPC2800AGR датащи(PDF) 4 Page - NEC |
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UPC2800AGR датащи(HTML) 4 Page - NEC |
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4 / 12 page  µPC2800A 4 Pin Symbol Pin Name Internal Equivalent Circuit Function No. 7IN– First-stage gain Reverse input pin of the first-stage setting pin amplifier. Connect a capacitor (0.01 µF) to prevent direct current so that the first- stage amplifier operates as an AC amplifier. The gain of the amplifier can be adjusted by an external resistor (0 to 1 k Ω) (refer to AV vs. R1 Characteris- tics in CHARACTERISTIC CURVE). 8IN+ Signal input pin This pin has an internal impedance of 90 k Ω (TYP.) and can be directly connected to a PIN photodiode. Because this is the input pin of a high- sensitivity amplifier, exercise care that noise is not superimposed on this pin. Keep the wiring length of the cathode of the PIN photodiode as short as possi- ble. 2.5 V 90 k Ω 8 7 To limiter circuit ABLC |
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