General Description

The MICRF220 is a 300MHz to 450MHz super heterodyne, image-reject, RF receiver with automatic gain control, ASK/OOK demodulator, analog RSSI output, and integrated squelch features. It only requires a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low power, RKE, TPMS, and remote actuation applications.

Features

• –110dBm sensitivity at 1kbps with 0.1 BER

• Supports bit rates up to 20kbps at 433.92MHz

• 25dB image-reject mixer

• No IF filter required

• 60dB analog RSSI output range

• 3.0V to 3.6V supply voltage range

• 4.3mA supply current at 315MHz

• 6.0mA supply current at 434MHz

• 0.1µA supply current in shutdown mode

• Data output squelch until valid bits detected

• 16-pin QSOP package (4.9mm x 6.0mm)

• −40˚C to +105˚C temperature range

• 3kV HBM ESD Rating