SI4703-C19-GMR

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.comRev. 1.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 1, 2021Si4702/03-C19B ROADCAST FM R ADIO T UNER FOR P ORTABLE A PPLICATIONSFeaturesApplicationsDescriptionThe Si4702/03 integrates the complete tuner function from antenna inputto stereo audio output for FM broadcast radio reception.Functional Block Diagram This data sheet applies toSi4702/03-C Firmware 19 andgreater Worldwide FM band support(76–108 MHz) Digital low-IF receiver Frequency synthesizer withintegrated VCO Seek tuning Automatic frequency control (AFC) Automatic gain control (AGC) Excellent overload immunity Signal strength measurement Programmable de-emphasis(50/75 µs) Adaptive noise suppression Volume control Line-level analog output 32.768 kHz reference clock 2-wire and 3-wire controlinterface 2.7 to 5.5 V supply voltage Integrated LDO regulatorallows direct connection tobattery 3 x 3 mm 20-pin QFN packagePb-free/RoHS compliant RDS/RBDS Processor(Si4703) Integrated crystal oscillator Cellular handsets MP3 players Portable radios USB FM radio PDAs Notebook PCs Portable navigation Consumer electronicsVIOIADCQADCSi4702/03DSPFILTERDEMODMPXAUDIOSCLKSDIOSENDACDACROUTLOUT0 / 90LOW-IFRSSITUNEGPIOGPIORSTRFGNDLNAFMIPAFCAGCPGARCLKREGVAVD32.768 kHz2.7–5.5 VHeadphoneCableRDS(Si4703)XTALOSCU.S. and International Patentspending—Abbreviated U.S. PatentList:7272375, 7127217, 7272373,7272374, 7321324, 7339503,7339504, 7355476, 7426376,7436252, 7471940Ordering Information:See page 37.Pin Assignments(Top View)Si4702/03-GMGNDPAD1GNDLOUTROUTRSTNCGNDGNDFMIPRFGNDVD254361512131471098111718192016