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AXM0F243 Datasheet(PDF) 28 Page - ON Semiconductor |
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AXM0F243 Datasheet(HTML) 28 Page - ON Semiconductor |
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28 / 53 page ![]() AXM0F243 www.onsemi.com 28 Table 44. RECEIVER AND TRANSMITTER SETTLING PHASES Symbol Description Condition Min Typ Max Units Txtal XTAL settling time Powermodes: POWERDOWN to STANDBY Note that Txtal depends on the specific crystal used. 0.5 ms Tsynth Synthesizer settling time Powermodes: STANDBY to SYNTHTX or SYNTHRX 40 ms Ttx TX settling time Powermodes: SYNTHTX to FULLTX Ttx is the time used for power ramping, this can be programmed to be 1 x tbit, 2 x tbit, 4 x tbit or 8 x tbit. Note 1 0 1 x tbit 8 x tbit ms Trx_init RX initialization time 150 ms Trx_rssi RX RSSI acquisition time (after Trx_init) Powermodes: SYNTHRX to FULLRX Modulation (G)FSK Note 1 80 + 3 x tbit ms Trx_preamble RX signal acquisition time to valid data RX at full sensitivi- ty/selectivity (after Trx_init) 9 x tbit 1. tbit depends on the datarate, e.g. for 10 kbps tbit = 100 ms Table 45. OVERALL STATE TRANSITION TIMES Symbol Description Condition Min Typ Max Units Ttx_on TX startup time Powermodes: STANDBY to FULLTX Note 1 40 40 + 1 x tbit ms Trx_on RX startup time Powermodes: STANDBY to FULLRX 190 ms Trx_rssi RX startup time to valid RSSI Powermodes: STANDBY to FULLRX Modulation (G)FSK Note 1 270 + 3 x tbit ms Trx_data RX startup time to valid data at full sensitivity/selectivity 190 + 9 x tbit ms Trxtx RX to TX switching Powermodes: FULLRX to FULLTX 62 ms Ttxrx TX to RX switching (to preamble start) Powermodes: FULLTX to FULLRX 200 Thop Frequency hop Switch between frequency de- fined in register AX5043_FRE- QA and AX5043_FREQB 30 ms 1. tbit depends on the datarate, e.g. for 10 kbps tbit = 100 ms |
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