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SP502 датащи(PDF) 11 Page - Sipex Corporation |
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SP502 датащи(HTML) 11 Page - Sipex Corporation |
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11 / 32 page ![]() 11 Rev. 7/21/03 SP502 Multi-Mode Serial Transceiver © Copyright 2003 Sipex Corporation SP502 196Ω 196Ω 422Ω 422Ω 422Ω + 22µF, 16V 1N5819 1N5819 22µF (VCC decoupling) +5V, ±5% + 22µF 16V 25 27 26 30 28 31 32 22µF 16V + + 22µF, 16V VCC VDD C1+ C1– C2+ C2– VSS GND Charge Pump 196Ω 196Ω 422Ω 422Ω 422Ω 47Ω 47Ω 120Ω 47Ω 47Ω V.35 External Receiver Input Termination Resistors V.35 External Driver Output Termination Resistors D1 D2 D1 and D2 are Schottky diodes. They are necessary to guard against VCC rates of rise greater than 1V/µs, which can cause start–up problems. All VCC connections can be tied 'together. Charge pump capacitors must be placed as close to the package as possible. Receiver Decode Driver Decode Ext. Latch 1 1 1 0 1 1 1 0 120Ω + Figure 6. Typical Operating Circuit For NET2 certified circuits, please contact the factory. |
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