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MICRF229YQS Datasheet(PDF) 5 Page - Micrel Semiconductor |
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MICRF229YQS Datasheet(HTML) 5 Page - Micrel Semiconductor |
5 / 23 page Micrel, Inc. MICRF229 April 15, 2015 5 Revision 1.0 Electrical Characteristics (Continued) VDD = 5.0V, VEN = 5V, SQ = Open, CAGC = 4.7µF, CCTH = 0.1µF, unless otherwise noted. Bold values indicate – 40°C ≤ TA ≤ +105°C. Symbol Parameter Condition Min. Typ. Max. Units Reference Oscillator fRF Reference Oscillator Frequency fRF = 433.92MHz 13.52313 MHz Reference Buffer Input Impedance RO1 when driven externally 1.6 kΩ Reference Oscillator Bias Voltage RO2 1.15 V Reference Oscillator Input Range External input, AC couple to RO1 0.2 1.5 VP-P Reference Oscillator Source Current VRO1 = 0V 300 µA Demodulator CTH Source Impedance (5) fREF = 13.52313MHz 120 K Ω CTH Leakage Current In CTH Hold Mode TA = +25ºC TA = +105ºC 1 10 nA Digital / Control Functions DO Pin Output Current As output source at 0.8VDD As output sink at 0.2VDD 300 680 µA Output Rise Time 15pF load on DO pin, transition time between 0.1VDD and 0.9VDD 600 ns Output Fall Time 200 Input High Voltage EN 0.8VDD V Input Low Voltage EN 0.2VDD V Output Voltage High DO 0.8VDD V Output Voltage Low DO 0.2VDD V RSSI (6) VRSSI RSSI DC Output Voltage Range −110dBm RF input level 0.5 V −50dBm RF input level 2.0 RSSI Output Current 5k Ω load to GND, −50dBm RF input level 400 µA RSSI Output Impedance 240 Ω RSSI Response Time D[4:3] = 00, RF input power-stepped from no input to −50dBm 10 ms RF Leakage LO Leakage for 433.92MHz 432.68064MHz (fXAL = 13.52127MHz) −98 dBm Notes: 5. CTH source impedance is inversely proportional to the reference frequency. In production test, the typical source impedance value is verified with 12MHz reference frequency. 6. RSSI exhibit variation through manufacturing process, it is recommended that the reading is calibrated by software in system MCU when it is being used. |
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