RF65

RF65 Low Power Integrated UHF Receiver With -120dBm High Sensitivity VBAT1&2 VR_ANA VR_DIG Power Distribution System RC Oscillator LNA Single to Differential RFIN Mixers Σ/Δ Modulators Demodulator & Bit Synchronizer Decimation and & Filtering RESET Control Registers - Shift Registers - SPI Interface RSSI AFC Packet Engine & 66 Bytes FIFO SPI GND Division by 2, 4 or 6 DIO0 DIO1 DIO2 DIO3 DIO4 Tank Inductor NC NC NC Loop Filter Frac-N PLL Synthesizer XO 32 MHz DIO5 XTAL GND GENERAL DESCRIPTION The RF65 is a highly integrated RF receiver capable of operation over a wide frequency range, including the 3 1 5 , 433,868 and 915 MHz license-free ISM (Industry Scientific and Medical) frequency bands. Its highly integrated architecture allows for a minimum of external components whilst maintaining maximum design flexibility. All major RF communication parameters are programmable and most of them can be dynamically set. The RF65 offers the unique advantage of programmable narrow-band and wide-band communication modes without the need to modify external components. The RF65 is optimized for low power consumption while offering high sensitivity and channelized operation. TrueRF™ technology enables a lowcost external component count (elimination of the SAW filter) whilst still satisfying ETSI and FCC regulations. KEY PRODUCT FEATURES               High Sensitivity: down to -120 dBm at 1.2 kbps High Selectivity: 16-tap FIR Channel Filter Bullet-proof front ...