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.

Features

• Complete UHF receiver on a monolithic chip

• 300MHz to 440MHz

• Data rates up to 3.2kbps NRZ

• Automatic tuning, no manual adjustment

• Low power consumption

   – 315MHz:

      2.3 mA fully operational

      0.5µA shutdown

      230µA polled at a 10:1 duty cycle ratio

   – 433.92MHz:

      3.8mA fully operational

      0.5µA shutdown

      380µA polled at a 10:1 duty cycle ratio

• Virtually no RF re-radiation at the antenna

• CMOS logic interface to standard decoder and micro processor ICs

• Extremely low external part count

• No filters or inductors required

Applications

• Automotive remote keyless entry (RKE)

• Long range RF identification

• Remote fan and light control

• Garage door and gate openers