The Si4825 is the entry level mechanical-tuned digital CMOS AM/FM/SW radio receiver IC that integrates the complete receiver function from antenna input to audio output. The Si4825 extends Silicon Laboratories multi-band tuner family and further increases the ease and attractiveness of design radio reception to audio devices through small size and board area, minimum component count, and superior, proven performance. The Si4825 requires a simple application circuit and removes any requirements for manually tuning components during the manufacturing process. The receiver has very low power consumption, runs off two AAA batteries, and delivers the performance benefits of digital tuning to the analog radio market.

Features:

• Worldwide FM band support (64–109 MHz)
• Worldwide AM band support (504–1750 kHz)
• SW band support (2.3–28.5 MHz)
• No manual alignment necessary
• Mono audio output
• Selectable support AM/FM/SW regional bands
• Enhanced FM/SW band coverage
• Automatic frequency control (AFC)
• Integrated LDO regulator
• 2.0 to 3.6 V supply voltage
• Wide range of ferrite loop sticks and air loop antennas supported
• RoHS-compliant
• Direct volume control

Datasheet: