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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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SPIRIT1 数据表(PDF) 24 Page - STMicroelectronics |
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SPIRIT1 数据表(HTML) 24 Page - STMicroelectronics |
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24 / 94 page  Characteristics SPIRIT1 24/94 Doc ID 022758 Rev 3 6.2.5 Crystal oscillator Characteristics measured over recommended operating conditions unless otherwise specified. All typical values are referred to TA = 25 °C, VBAT = 3.0 V. Frequency synthesizer characteristics are referred to 915 MHz band. PHARM Harmonics level RF = 170 MHz, 2nd harmonic (max power level) -36 dBm RF = 170 MHz, 3rd harmonic (max power level) -55 RF = 315 MHz, 2nd harmonic (max power level) -52 dBc RF = 315 MHz, 3rd harmonic (max power level) -52 RF = 433 MHz, 2nd harmonic (max power level) -43 dBm RF = 433 MHz, 3rd harmonic (max power level) -46 RF = 868 MHz, 2nd harmonic (max power level) -40 RF = 868 MHz, 3rd harmonic (max power level) -42 RF = 915 MHz, 2nd harmonic (max power level) -28 dBc RF = 915 MHz, 3rd harmonic (max power level) -42 dBm RF = 922 MHz, 2nd harmonic (max power level) -39 RF = 922 MHz, 3rd harmonic (max power level) -60 PALOAD Optimum load impedance (simulated values) 170 MHz, using reference design 46 + j36 Ohm 315 MHz, using reference design 25 + j27 Ohm 433 MHz, using reference design 29 + j19 Ohm 868 MHz, using reference design 34 - j7 Ohm 915 MHz, using reference design 15 + j28 Ohm 922 MHz, using reference design 42 - j15 Ohm 1. In ASK/OOK modulation, indicated value represents peak power. Table 11. RF transmitter characteristics (continued) Symbol Parameter Test conditions Min. Typ. Max. Unit |
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