Product Summary

The SI4730 is an industry’s first fully integrated, 100% CMOS AM/FM radio receiverIC. The SI4730 AM/FM radio provides the space savings and low power consumption necessary for portable devices while delivering the high performance and design simplicity desired for all AM/FM solutions. Offering unmatched integration and PCB space savings, the SI4730 requires only two external components and less than 15mm2 of board area. The applications of the SI4730 include able and portable radios, Stereos, Mini/micro systems, Portable media players, Boomboxes, Cellular handsets, Clock radios, Modules, Entertainment systems.

Parametrics

SI4730 absolute maximum ratings: (1)Input Frequency, fRF: 520 to 1710 kHz; (2)Sensitivity: 38μV EMF; (3)Audio S/N: 58dB; (4)Audio THD: 0.1 %; (5)Audio Output Voltage: 54 to 66 mVrms; (6)Antenna Inductance: 180 to 600 μH.

Features

SI4730 features: (1)Worldwide FM band support (76–108 MHz); (2)Worldwide AM band support (520–1710 kHz); (3)AM/FM digital tuning; (4)Excellent real-world performance; (5)Only 2 external components; (6)No manual alignment required; (7)Adjustable AM channel filters; (8)Advanced AM/FM seek tuning; (9)Digital volume control; (10)Adjustable soft mute control; (11)Frequency synthesizer with integrated VCO; (12)Automatic frequency control (AFC); (13)Automatic gain control (AGC); (14)Programmable AM/FM de-emphasis; (15)Adaptive noise suppression; (16)Integrated LDO regulator; (17)Programmable reference clock; (18)PM RDS/RBDS processor (Si4731 only); (19)2-wire and 3-wire control interface; (20)2.7 to 5.5 V supply voltage; (21)AM ferrite loopstick and air loop antenna support; (22)3 x 3 x 0.55 mm 20-pin QFN package, Pb-free/RoHS compliant.

Diagrams

SI4730 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
Si4730-A10-GM
Si4730-A10-GM

Silicon Labs

RF Receiver Broadcast AM/FM Radio Receiver

Data Sheet

Negotiable 
Si4730-C40-GM
Si4730-C40-GM

Silicon Labs

RF Receiver Broadcast AM/FM Radio Receiver

Data Sheet

Negotiable 
Si4730-C40-GU
Si4730-C40-GU

Silicon Labs

RF Receiver Broadcast AM/FM Radio Receiver

Data Sheet

Negotiable 
SI4730-C40-GUR
SI4730-C40-GUR


IC RX AM/FM RADIO WORLD 24SSOP

Data Sheet

Negotiable 
SI4730-D50-GM
SI4730-D50-GM


IC RADIO RECEIVER AM/FM 20-QFN

Data Sheet

0-490: $4.54
SI4730-D60-GM
SI4730-D60-GM


IC RADIO RX AM/FM/AUX 20QFN

Data Sheet

0-490: $1.62
SI4730-D60-GU
SI4730-D60-GU


IC RADIO RX AM/FM/AUX 24SSOP

Data Sheet

0-490: $1.62
Si4730-D60-GUR
Si4730-D60-GUR

Silicon Labs

RF Receiver BRDCAST AM/FM/AUXIN RADIO RECEIVER

Data Sheet

0-2500: $1.23