Si4704/05-D60 BROADCAST FM RADIO RECEIVER WITH RDS/RBDS Features Worldwide FM band support FM digital tuning (64108 MHz) EN55020 compliant Excellent real-world performance No manual alignment necessary Integrated VCO Programmable reference clock Advanced FM seek tuning Adjustable soft mute control Automatic frequency control (AFC) RDS/RBDS processor (Si4705-D60) Automatic gain control (AGC) Digital audio out Digital FM stereo decoder 2-wire and 3-wire control interface Programmable de-emphasis Integrated LDO regulator Advanced Audio Processing QFN and SSOP packages Ordering Information: RoHS compliant See page 28. Applications Pin Assignments Table and portable radios Modules for consumer electronics Mini/micro systems Clock radios Si4704/05-D60 (QFN) CD/DVD and Blu-ray players Mini HiFi and docking stations Stereo boom boxes Entertainment systems Description 20 19 18 17 NC 1 16 FMI 2 15 DOUT RFGND 3 14 LOUT/ DFS GND The Si4704/05-D60 digital CMOS FM radio receiver IC integrates the complete PAD LPI 4 13 ROUT/ DOUT tuner function from antenna input to digital audio output, enabling a cost efficient RST 5 12 GND digital audio platform for consumer electronic applications with high TDMA noise 6 11 VA 7 8 9 10 immunity, superior radio performance, and high fidelity audio power amplification. Si4704/05-D60 (SSOP) Functional Block Diagram DOUT 1 24 LOUT/ DFS FM Antenna ROUT/ DOUT Si4704/05-D60 DFS 2 23 GPO3/ DCLK 3 22 DBYP DOUT RDS FMI GPO2/ INT 4 21 VA (Si4705) DIGITAL DFS LNA RFGND AUDIO GPO1 5 20 VD GPO/DCLK LOW-IF NC 6 19 RCLK AGC NC 7 18 SDIO 0/90 Mux ADC DAC ROUT FMI 8 17 SCLK DSP 32.768 kHz RFGND 9 16 SEN Mux ADC DAC LOUT RCLK AFC NC 10 15 RST LPI 11 14 GND 2.7~5.5 V (QFN) / 2.0~5.5 V (SSOP) VA CONTROL LDO VD NC 12 13 GND + INTERFACE GND 1.62 - 3.6 V This product, its features, and/or its architecture is covered by one or more of the following patents, as well as other patents, pending and issued, both foreign and domestic: 7,127,217 7,272,373 7,272,375 7,321,324 7,355,476 7,426,376 7,471,940 7,339,503 7,339,504. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 1, 2021 SEN SCLK SDIO RST SEN NC SCLK SDIO GPO1 RCLK GPO2/ INT VD GPO3/ DCLK DFSSi4704/05-D60 TABLE OF CONTENTS Section Page 1. Electrical Specifications .4 2. Typical Application Schematic .16 2.1. QFN Typical Application Schematic .16 2.2. SSOP Typical Application Schematic 17 3. QFN/SSOP Bill of Materials 18 4. Functional Description .19 4.1. Overview 19 4.2. Operating Modes 20 4.3. FM Receiver .20 4.4. Digital Audio Interface 20 4.5. Stereo Audio Processing 22 4.6. Received Signal Qualifiers 22 4.7. Volume Control .22 4.8. Stereo DAC 22 4.9. Soft Mute 22 4.10. FM Hi-Cut Control 22 4.11. De-emphasis 23 4.12. RDS/RBDS Processor (Si4705-D60 Only) .23 4.13. Tuning .23 4.14. Seek 23 4.15. Reference Clock .23 4.16. Control Interface .24 4.17. GPO Outputs 25 4.18. Firmware Upgrades .25 4.19. Reset, Powerup, and Powerdown 25 4.20. 2 V Operation (SSOP Only) 25 4.21. Programming with Commands 25 5. Pin Descriptions .26 5.1. Si4704/05-D60-GM 26 5.2. Si4704/05-D60-GU 27 6. Ordering Guide 28 7. Package Outline .29 7.1. Si4704/05-D60 QFN .29 7.2. Si4704/05-D60 SSOP 30 8. PCB Land Pattern 31 8.1. Si4704/05-D60 QFN .31 8.2. Si4704/05-D60 SSOP 33 9. Top Markings .34 9.1. Si4704/05-D60 Top Marking (QFN) .34 9.2. Top Marking Explanation (QFN) 34 9.3. Si4704/05-D60 Top Marking (SSOP) 35 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 1, 2021