MICRF010 QwikRadio Low-Power UHF Receiver General Description The MICRF010 is a single chip, ASK/OOK (ON-OFF QwikRadio Keyed) RF receiver IC recommended for new designs Features replacing the MICRF007. It provides the same function with sensitivity enhancement, typically 6dB better than the High sensitivity (104dBm) 300MHz to 440MHz frequency range MICRF007. Just like all other members of the QwikRadio family, the MICRF010 achieves low power operation, a Data-rate up to 2.0kbps (Manchester encoding) very high level of integration, and it is particularly easy to Low power consumption use. 2.9mA fully operational (315MHz) 0.15A in shutdown All post-detection data filtering is provided on the 290A in polled mode (10:1 duty-cycle) MICRF010, so no external baseband filters are required. In Shutdown input fact, the entire receiver circuit is made of very few external Automatic tuning, no manual adjustment components and with the 8-pin SOIC package makes it ideal for small printed circuit board area applications. Very low RF re-radiation at the antenna Highly integrated with extremely low external part count The MICRF010 works in fixed-mode (FIX) operation, which functions as a conventional super-heterodyne receiver. Fixed-mode provides better selectivity and sensitivity performance in comparison with sweep mode used in other Applications Micrel receivers intended for lower cost applications. Automotive remote keyless entry (RKE) Data sheets and support documentation can be found on Long range RF identification Micrels web site at www.micrel.com. Remote fan and light control Garage door and gate openers Ordering Information Part Number Operating Mode Shutdown Package Standard Pb-Free MICRF010BM MICRF010YM Fixed Yes 8-pin SOIC Typical Application 17cm 22AWG MAGNET WIRE 433.92Mhz 1000 bps Manchester Encoded On-Off Keyed Receiver QwikRadio is a registered trademark of Micrel, Inc. The QwikRadio Ics were developed under a partnership agreement with AIT of Orlando, Florida. M9999-063005 June 2005 (408) 955-1690 Micrel MICRF010 Pin Configuration Standard 8-Pin SOIC (M) Pin Description Pin Number Pin Name Pin Function 1 VSS Ground Return (input): ground return to the power supply. See Applications Information for bypass capacitor details. 2 ANT Antenna (Input): See Applications Information for information on input impedance. For optimal performance the antenna impedance should be matched to the antenna pin impedance. 3 VDD Power Supply (Input): Positive Supply input for the RF IC. Connect a low ESL, low ESR decoupling capacitor from this to VSS, with lead length kept as short as possible. 4 CTH Data Slicing Threshold Capacitor (External Component): Capacitor extracts the DC average value from the demodulated waveform, which becomes the reference for the internal data slicing comparator. See Applications Information for selection. 5 DO Digital Output (Output): CMOS level compatible data output signal. 6 SHUT Shutdown (Input): Shutdown-mode logic-level control input. Pull low to enable the receiver. This input is pulled-up internally to VDD. 7 CAGC AGC Capacitor (External Component): Integrating capacitor for on-chip AGC (automatic gain control). See Applications Information for capacitor selection. 8 REFOSC Reference Oscillator (External Component or Input): Timing reference for on-chip tuning and alignment. M9999-063005 June 2005 2 (408) 955-1690