Silicon Labs has introduced a new generation of their analog-tuned, analog/digital-display (ATxD) multiband radio IC family. The new Si4825/27/36 AM/FM/SW receivers provide an "all-in-one" single-chip receiver solution for consumer products containing wheel-tuned radios. The new receivers use a single band to cover a wider frequency range for FM and SW bands, and they also support TV audio carrier reception for China. Additionally, the devices provide advanced audio conditioning for all signal environments, removing pops, clicks and loud static in challenging signal conditions.


The Si4825 mono-output and the Si4836 stereo-output are designed for the ATAD radio market. The Si4827 mono-output targets the ATDD radio market. Each receiver supports worldwide broadcast frequencies from 64-109 MHz in FM, 504-1750 kHz in AM and 2.3-28.5 MHz in shortwave (SW), enabling a single radio design based on the receivers to support all worldwide markets.


The Si4825/27/36 multiband receivers are available in a compact 16-pin SOIC package, enabling cost-efficient, single-sided PCB designs and easy handling in manufacturing lines. Samples and production quantities of the new receivers are available now.