MICRF007

MICRF007 Micrel MICRF007 QwikRadio® Low-Power UHF Receiver General Description The MICRF007 is a single chip, ON-OFF Keyed (ASK/OOK) Receiver for remote wireless applications, employing Micrel’s latest QwikRadio® technology.This device is a true “antenna-in to data-out” monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual tuning, and reduces production costs. The result is a highly reliable yet extremely low cost solution. The MICRF007 is an enhanced version of the MICRF002 and MICRF011. The MICRF007 is a conventional superhetrodyne receiver, with an (internal) Local oscillator fixed at a single frequency based on an external reference crystal or clock. As with any conventional superhetrodyne receiver, the companion transmitter’s frequency must be accurately controlled, generally with a crystal or SAW (surface acoustic wave) resonator. The MICRF007 provides two enhancements over the MICRF001/011: (1) a Shutdown Mode, which may be used for duty-cycle operation, and (2) reduced current consumption. The MICRF007 requires a mere 2.3mA at 315MHz (3.8mA at 433.92MHz) when fully operational. These features make the MICRF007 ideal for low and ultra-low power applications, such as RKE and RFID. All post-detection (demodulator) data filtering is provided on the MICRF007, so no external baseband filters are required. The demodulator filter bandwidth is fixed at 2.5kHz. Data rates up to 3.2kbps NRZ may be used. All support documentatio...