MICRF620 is a frequency shift keying (FSK) transceiver module produced by Micrel, Inc., with a working frequency of 434MHz and support for half-duplex bidirectional communication
The MICRF620 is a drop‑in, surface‑mountable RF module designed for half‑duplex, bidirectional links in the 434 MHz ISM band. It integrates a programmable PLL synthesizer, power amplifier, low‑noise receiver front‑end and a digital bit synchronizer, and provides a receive signal strength indicator (RSSI).\n\nThe module is supplied in an 11.5 mm × 14.1 mm package, operates from 2.0 V to 2.5 V, and offers programmable output power from -8 dBm to 10 dBm. It features 23 addressable control registers accessed via a three‑wire interface and supports data rates up to 20 kbps.
| Supply Voltage | 2.0 V to 2.5 V |
|---|---|
| Frequency Range | 410 MHz to 450 MHz |
| Data Rate | <20 kbps |
| Package Size | 11.5 mm × 14.1 mm |
| Control Registers | 23 registers |
| Power‑Down Current | 0.3 pA |
| Standby Current | 280 pA |
| RSSI Dynamic Range | 50 dB |
The module operates from 2.0 V to 2.5 V.
It contains 23 addressable control registers.
The package measures 11.5 mm by 14.1 mm.