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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TH71221 датащи(PDF) 29 Page - Melexis Microelectronic Systems |
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TH71221 датащи(HTML) 29 Page - Melexis Microelectronic Systems |
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29 / 44 page  TH71221 27 to 930MHz FSK/FM/ASK Transceiver 39010 071221 Page 29 of 44 Data Sheet Rev. 005 June/07 6.4 PLL Synthesizer Timings Parameter Symbol Condition Min Typ Max Unit wide band tSW_WB BPLL = 20kHz, ICP = 260µA 200 µs Channel switching time narrow band tSW_NB BPLL = 2kHz, ICP = 260µA 500 µs TX – RX switching time tTX_RX IF = 10.7MHz 1 ms 6.5 AC Characteristics of the Receiver Part all parameters under normal operating conditions, unless otherwise stated; all parameters based on test circuits for FSK (Fig. 14 to 15) and ASK (Fig. 16 to 17), respectively; Parameter Symbol Condition Min Typ Max Unit fRF= 433.92MHz -96 fRF= 868.3MHz PminL_ASK BIF = 150kHz, fm = 2kHz BER ≤ 3⋅10-3 LNA @ low gain -96 dBm fRF= 433.92MHz -107 Input sensitivity ASK fRF= 868.3MHz PminH_ASK BIF = 150kHz, fm = 2kHz BER ≤ 3⋅10-3 LNA @ high gain -107 dBm fRF= 433.92MHz -87 fRF= 868.3MHz PminL_FSK BIF = 150kHz, fm = 2kHz Δf = ± 50 kHz BER ≤ 3⋅10-3 LNA @ low gain -87 dBm fRF= 433.92MHz -105 Input sensitivity FSK fRF= 868.3MHz PminH_FSK BIF = 150kHz, fm = 2kHz Δf = ± 50 kHz BER ≤ 3⋅10-3 LNA @ high gain -105 dBm fRF= 433.92MHz -10 fRF= 868.3MHz PmaxL_ASK LNA @ low gain -10 dBm fRF= 433.92MHz -20 Maximum input signal ASK fRF= 868.3MHz PmaxH_ASK LNA @ high gain -20 dBm fRF= 433.92MHz -10 fRF= 868.3MHz PmaxL_FSK LNA @ low gain -10 dBm fRF= 433.92MHz -20 Maximum input signal FSK fRF= 868.3MHz PmaxH_FSK LNA @ high gain -20 dBm Start-up time - ASK ton_ASK from standby to receive mode 1 1.5 ms Start-up time - FSK ton_FSK from standby to receive mode 1 1.5 ms Spurious emission Pspur_RX referred to receiver input -54 dBm |
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