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UPD4711BGS датащи(PDF) 2 Page - NEC |
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UPD4711BGS датащи(HTML) 2 Page - NEC |
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2 / 12 page ![]() µPD4711B 2 BLOCK DIAGRAM/PIN CONFIGURATION (Top View) 20 DC - DC converter VDD C1 VCC C1 GND 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 +5 V C1 + + C3 +10 V C4 + + C2 –10 V DIN1 DIN2 ROUT1 ROUT2 TTL/CMOS OUTPUT TTL/CMOS INPUT Threshold control DCON DOUT1 RIN1 RIN2 RCON RS-232 OUTPUT RS-232 INPUT C4 + + – VSS C4 – GND 300 Ω 5.5 k Ω Standby STBY DOUT2 Output contrtol 300 Ω 5.5 k Ω By pass Capacitor * VDD and Vss are output pins of voltages internally boosted. Connecting a load directly to these pins is not recommended. ** The standby pin is internally pulled down. *** Use capacitors with a working voltage of 16 V or higher as C1 through C4. Insert a bypass capasitor about 0.1 to 1 µF between VCC pin to GND pin. |
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