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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCD5003H датащи(PDF) 34 Page - NXP Semiconductors |
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PCD5003H датащи(HTML) 34 Page - NXP Semiconductors |
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34 / 44 page  1997 Jun 24 34 Philips Semiconductors Product specification Advanced POCSAG Paging Decoder PCD5003 14 AC CHARACTERISTICS VDD = 2.7 V; VSS =0V; VPR = 2.7 V; Tamb =25 °C;. fosc = 76800 Hz. SYMBOLS PARAMETER CONDITIONS MIN. TYP. MAX. UNIT System clock Tclk system clock period fosc = 76800 Hz − 13.02 −µs Call alert frequencies fAL alert frequency SPF byte 03H; bits: D1, D0 = 0 0 − 2048 − Hz D1, D0 = 0 1 − 2731 − Hz D1, D0 = 1 0 − 3200 − Hz D1, D0 = 1 1 − 4096 − Hz fAW warbled alert; modulation frequency alert set-up bit D2 = 1; outputs ATL, ATH, LED − 16 − Hz fAWH warbled alert; high acoustic alert frequency alert set-up bit D2 = 1; outputs ATL, ATH − fAL − Hz fAWL warbled alert; low acoustic alert frequency alert set-up bit D2 = 1; outputs ATL, ATH − 1 ⁄2fAL − Hz fVBP pulsed vibrator frequency (square-wave) low-level alert − 25 − Hz Call alert duration tALT alert time-out period − 16 − s tALL ATL output time-out period low-level alert − 4 − s tALH ATH output time-out period high-level alert − 12 − s tVBL VIB output time-out period low -level alert − 4 − s tVBH VIB output time-out period high-level alert − 12 − s tALC alert cycle period − 1 − s tALP alert pulse duration − 125 − ms Real time clock reference fref real time clock reference frequency SPF byte 02H; bits: D3, D2 = 0 0; note 1 − 32768 − Hz D3, D2 = 0 1; note 2 − 50 − Hz D3, D2 = 1 0 − 2 − Hz D3, D2 = 1 1 − 1 ⁄60 − Hz tRFP real time clock reference pulse duration all reference frequencies except 50 Hz (square-wave) − 13.02 −µs |
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