AM/FM/SW receiver integrated on a single CMOS chip

[Chuckt]

AM/FM/SW receiver integrated on a single CMOS chip

The analogue tuning voltage can be provided by a simple potentiometer, and the IC communicates with a host microcontroller over an I²C-compatible 2-wire control interface to display frequency and stereo/mono data on an LCD. The receiver IC covers the frequency ranges of 504 to 1750 kHz (AM), 2.3 to 28.5 MHz (SW – Si4844 only) and 64 to 109 MHz (FM). It supports digital tone and volume control, and provides a stereo/mono indication on the display.


The Si4840 and Si4844 operate over a supply voltage range of 2.0 to 3.6 V and are available in a 24-lead SSOP package.

http://www.elektor.com/news/am-fm-sw-re ... paign=news

Product's Website Commercial Link:
http://www.silabs.com/products/audiovid ... 40-44.aspx

[brad]

how they can fit all tuning circuitry in a chip is amazing.