AN785 CRYSTAL SELECTION GUIDE FOR THE Si4X6X/Si4X 55 RF ICS
The aim of this application note is to give a better understanding of crystal and TCXO interfacing to our Si4x6x/Si4x55 ISM band transmitter, receiver and transceiver ICs. The most important parameters when selecting the proper crystal oscillator are the following:
Nominal Frequency: 25...32 MHz (typically 30 MHz; for more details please see section 4)
Equivalent Series Resistance: ESR: max. 80Ω
Load Capacitance: Cload, CL: max. 10 pF
Shunt Capacitance: C0 (as low as possible, typically 3–4 pF)
Frequency Stability over Operating Temperature Range: typically ±10 ppm (depends on the application)
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RF ICS 、 ISM band transmitter 、 receiver 、 transceiver ICs 、 crystal oscillator |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2017/12/16 |
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Rev. 1.3 |
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721 KB |
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