General Description

The MICRF219A is a 300MHz to 450MHz super-heterodyne, image-reject, RF receiver with automatic gain control, ASK/OOK demodulator, and analog RSSI output. It only requires a crystal and a minimum number of external components to implement. The MICRF219A is ideal for low-cost, low-power, RKE, TPMS, and remote actuation applications.

Features

• –110dBm sensitivity at 1kbps with 0.1 BER

• Auto-polling mode with bit checking

• 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

• 13μA supply current in sleep mode

• 0.1μA supply current in shutdown mode

• 16-pin QSOP package (4.9mm x 6.0mm)

• −40°C to +105°C temperature range

• 3kV HBM ESD Rating