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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SM8213 датащи(PDF) 3 Page - Nippon Precision Circuits Inc |
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SM8213 датащи(HTML) 3 Page - Nippon Precision Circuits Inc |
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3 / 33 page  SM8213AM NIPPON PRECISION CIRCUITS—3 PIN DESCRIPTION SM8213AM Paging Receiver Block Diagram Number Name I/O1 Description 1 BS1 O RF control main output signal 2 BS2 O RF DC-level adjustment signal 3 BS3 O PLL setup signal 4 SIGNAL I NRZ signal input pin 5 XVSS – Crystal oscillator ground. Capacitor connected between XVSS and VDD 6 XT I Oscillator input pin 7 XTN O Oscillator output pin 8 VSS – Ground 9 CLKO O 76.8 or 38.4 kHz clock output 10 RSTN I Hardware clear (reset) 11 AREA O Sync code detection output (HIGH for minimum 1 sec. on detection) 12 SCK I CPU-to-decoder data transfer sync clock 13 SDO O Status and received data output to CPU 14 SDI I Data input from CPU (including ID data) 15 ATTN O Interrupt detect signal output pin (Ready for data transmission when LOW) 16 VDD – Supply voltage 1. I = input, O = output RF Waveform Recovery POCSAG Decoder SP Melody IC PLL Circuit CPU Unit ID ROM D/D Converter LCD Driver LCD Supply Unit SM8213 Alert |
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