Si4438 Datasheet (Silicon Laboratories)

Si4438, LOW-CURRENT TRANSCEIVER

e Silicon Laboratories' Si4438 is a high-performance, low-current transceivers covering the sub-GHz frequency bands from 425 to d 525 MHz.

The Si4438 is targeted at the Chinese smart meter market and n is especially suited for electric meters.

This device is footprint- and pin-compatible with the S

Si4438 Features

* Frequency

* Excellent selectivity performance range = 425

* 525 MHz

* 58 dB adjacent channel

* Receive sensitivity =

* 124 dBm

* 75 dB blocking at 1 MHz

* Modulation

* (G)FSK

* Antenna diversity and T/R switch control

* OOK

* Highly con