Si4738/39 AM/FM/WB Radio Receivers
The Silicon Labs family of Si4738/39 ICs are the industry's first fully integrated, 100% CMOS AM/FM/WB and FM/WB radio receivers. Our Si4738/39 AM/FM/WB radio receivers provide the space savings and low power consumption necessary for portable devices while delivering the high performance and design simplicity desired for all AM/FM/WB solutions.
Leveraging our proven and patented digital low intermediate frequency (low-IF) receiver architecture, the Si4738/39 delivers superior RF performance and interference rejection in both AM and FM bands. The high integration and complete system production test simplify design-in, increase system quality, and improve manufacturability.
Offering unmatched integration and PCB space savings, the Si4736/37/38/39 ICs require only two external components and less than 15 mm2 of board area, excluding the antenna inputs.
- Weather band support (162.4–162.55 MHz)
- Worldwide FM band support (76–108 MHz)
- 1050 Hz tone detection
- AM/FM/WB digital tuning
- No manual alignment necessary
- Dynamic channel filters
- Advanced AM/FM seek tuning