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CC1110-RTR1 데이터시트(PDF) 16 Page - Texas Instruments |
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CC1110-RTR1 데이터시트(HTML) 16 Page - Texas Instruments |
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16 / 203 page ![]() CC1110 CC1110 PRELIMINARY Datasheet (Rev. 1.01) SWRS033A Page 16 of 202 Parameter Min Typ Max Unit Condition/Note ESR 100 Ω Start-up time 300 µs Measured on Chipcon’s CC1110 EM reference design. Table 8: 26 MHz Crystal Oscillator Parameters 7.5 32.768 kHz Crystal Oscillator TA =25°C, VDD=3.0V if nothing else is stated. Parameter Min Typ Max Unit Condition/Note Crystal frequency 32.768 kHz ESR 40 130 Ω C0 0.9 2.0 pF CL 12 16 pF Start-up time 450 ms Table 9: 32.768 kHz Crystal Oscillator Parameters 7.6 Low Power RC Oscillator TA=25°C, VDD=3.0V if nothing else is stated. Parameter Min Typ Max Unit Condition/Note Calibrated frequency 34.6 34.7 36 kHz Calibrated RC Oscillator frequency is XTAL frequency divided by 750 Frequency accuracy after calibration +0.3 -10 % Temperature coefficient +0.4 % / °C Frequency drift when temperature changes after calibration Supply voltage coefficient +3 % / V Frequency drift when supply voltage changes after calibration Initial calibration time 2 ms When the RC Oscillator is enabled, calibration is continuously done in the background as long as the crystal oscillator is running. Wake-up period 58µ 59650 Seconds Programmable, dependent on XTAL frequency Table 10: Low Power RC Oscillator parameters |
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