32000887

Rev. 2.0 FSK RECEIVER – NARROW BAND CLASS 1 - 869.2125 MHz Cod. 3-2000887 PRELIMINARY DESCRIPTION: Narrow band FSK receiver, manufactured in SMT technology on printed circuit. Includes an LNA input stage and a microcontroller to implement advanced functions. HIGHLIGHTS: Excellent sensitivity, selectivity, interference rejection and stability; RSSI output proportional to received signal strength. Developed according to I-ETS 300 220 European Standard. Class 1. APPLICATIONS: Social alarms, telemetry, ecc… MECHANICAL CHARACTERISTICS Pin functions 2 = GND 3 = RF Input (50 Ω) 7 = GND 11 = GND 12 = + Vcc (Power Down Control) 13 = RSSI Out (**) 14 = TTL Output – Data OUT 15 = + Vcc ABS. MAX. RATINGS: Power Supply, Vcc, PIN 12, 15: + 6 Volt Radio Frequency Input, pin 3: + 10 dBm Output pins voltage with respect to GND: + Vcc Storage Temperature: - 40 ÷ + 100 °C Operating Temperature: 0 ÷ + 55 °C ELECTRICAL CHARACTERISTICS AT THE TEMPERATURE OF + 25 °C Parameter Min. Supply Voltage (Vcc) Current Supply Receiver Frequency Overall Frequency Accuracy Sensitivity Image Frequency Rejection Adjacent Channel Selectivity Adjacent Channel Saturation Intermodulation Rejection Blocking Saturation 3.3 24.6 - Conducted and Radiated Spurious Emissions Typ. ≥ -44 ≥ -44 ≥ -20 ≥ -39 ≥ -20 ≥ -10 25 869.2125 ±1 -107 -30 -32 0 +10 - - Mipot S.p.A. reserves the right to modify the specifications without notice. Page 1 of 2 Max. Unit 5.5 27 - Volt mA MHz kHz dBm dBm dBm dBm dBm dBm dBm Within the limits specified by norms Notes Note 1 Note 2 Note 3 Note 4 Note 5 Note 6 Note 7 Note 8 Note 9 Cormòns, 08.04.2008 Rev. 2.0 Parameter Min. Typ. Max. Unit RF Bandwidth –3dB Baud rate Start-up Time (Vcc from 0 to 5V) Start-up Time (Power-Down / On) Settling Time RSSI Out Settling Time (pin 13) Logic Low Logic High Power –Down Supply Current Output Impedance (Pin 14) 300 - 12.5 - GND Vcc-0.05 50 - 2400 80 75 8 5 0.05 Vcc 0.4 - kHz Baud ms ms ms ms Volt Volt µA Kohm Notes Note 10 Note 11 Note 12 Note 13 Note 14 TYPICAL CHARACTERISTICS (*) RSSI out vs. RF input level 2,4 2,2 RSSI out (Vdc) 2 1,8 1,6 1,4 1,2 1 0,8 0,6 0,4 -105 -95 -85 -75 -65 -55 -45 -35 RF input level (dBm) *: All graphs must be considered as indicative typical results results in accordance with temperature variation. variation. Note Note 1: On demand it’s possibile to realize receivers with different center frequency. Note 2: 2: FM modulation 100%, square wave, 1KHz frequency (frequency deviation 2.5 kHz). Compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.1.4 Note 3: 3: Measurement compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.6.3 Note 4: Measurement compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.3.3.1 Note 5: Measurement compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.3.3.2 Note 6: Measurement compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.5.3 Note 7: Measurement compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.4.3.1 Note 8: Measurement compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.4.3.2 Note 9: Measurement compliant with the limit specified by ETSI EN 300-220-1 V 2.1.1 (2006-04) par. 9.7.5 Note 10: 10: Defines minimum and maximum impulse duration to assure a correct reception. 300 Baud and 2400 Baud correspond respectively to 150Hz and 1200Hz frequencies. Note 11: 11: Time by power-on to valid data reception. Measured at a level 3dB over the maximum available sensitivity. Note 12: 12: Time by activation after stand-by to valid data reception. Measured at a level 3dB over the maximum available sensitivity. Note 13: 13: Time by no-signal/strong signal (+30dBm) transition on input pin to valid data reception. Note 14: 14: Time by no-signal/strong signal (+30dBm) transition on input pin to valid signal level on RSSI Out (pin 13). Note 15: All RF parameters measured with input (pin 3) connected to 50 Ohm impedance signal source or load. Note 16: Pin 12 must be tied to 0 Volt to enter power-down mode while keeping pin 15 to + Vcc. Mipot S.p.A. reserves the right to modify the specifications without notice. Page 2 of 2 Cormòns, 08.04.2008