Si4685-A10 Single-Chip, AM/FM/DAB/DAB+ Radio Receiver Description Features The Si4685 single-chip digital receiver is one member of a - Worldwide FM band support (76108 MHz) family of 100% CMOS digital radio broadcast receiver ICs - Worldwide AM band support (5201710 kHz) from Skyworks. The Si468x family offers a complete and - Advanced RDS/RBDS decoder cost-effective digital radio solution integrating the RF tuner, - DAB, DAB+ Band III support (168240 MHz) baseband and audio processing on a single die. The high - Supports WorldDMB Receiver Profiles 1 and 2 level of integration provides significant customer benefits - Integrated OFDM channel demodulator compared to traditional digital radio solutions, including a - Integrated de-interleaving SRAM 2 reduction in system implementation complexity, validation - I S digital audio out with ASRC and testing, and improved reliability and manufacturability. - Integrated 97 dB stereo audio DAC 2 The Si4685 offers VHF Band III (168-240 MHz) reception - Concurrent I S/L-R stereo audio out capability and is fully compliant with ETSI EN 300 401 and - Full range of signal quality metrics ETSI TS 102 563. The Si4685 supports DAB and DAB+ via - Fully-integrated VCO / PLL / synthesizer an integrated source decoder that supports both MPEG 2 - SPI and I C host control interfaces Audio Layer 2 (DAB) and HE-AAC V2 (DAB+). The Si4685 - QFN 48-pin, 7x7x0.85 mm supports data services such as Dynamic Labels, Intellitext, Applications Electronic Program Guide (EPG), Slideshow and - Clock and tabletop radios Journaline with the appropriate external decoders. - Stereo boomboxes The Si4685 additionally supports worldwide AM/FM radio - Mini/micro systems reception and incorporates a fully integrated decoder for - Docking stations the European Radio Data System (RDS) and the North American Radio Broadcast Data System (RDBS) including all required symbol decoding, block synchronization, error detection, and error correction functions. For more information, visit the Si468x Digital Radio Receivers web page: www.skyworksinc.com/en/Products/Audio-and-Radio/Si468x-Digital-Radios Si4685-A10 AGC LOOPP ADC DAC LOUT LNA LOOPN DSP RFREF LNA ADC DAC ROUT VHFI AGC DCLK RDS I2S DFS DOUT VHFSW VHF SW SCLK CLK FLASH SSB LDOs Control Gen Interface MISO MOSI Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice September 12, 2021 VIO VA VCORE VMEM XTALI XTALO NVSCLK NVSSB NVMOSI NVMISO INTB RSTBSi4685-A10 Single-Chip, AM/FM/DAB/DAB+ Radio Receiver Selected Electrical Specifications Parameter Symbol Test Conditions Min Typ Max Units Ambient Temperature T 40 25 85 C A Analog Supply Voltage V 1.71 1.8 2.0 V A Interface Supply Voltage V 1.62 1.8 3.6 V IO Core Digital Supply Voltage V 1.62 1.8 2.0 V CORE Memory Supply Voltage V 1.62 1.8 2.0 V MEM Analog FM Input Frequency F 76 108 MHz rf Seek/Tune Time 60 ms/ch Analog AM Input Frequency F 520 1710 kHz rf Seek/Tune Time 60 ms/ch DAB/DAB+ Input Frequency F 168 240 MHz rf Ensemble Acquisition Time For a valid channel, after power-up RF 710 ms level = 47 dBm Si4685-A10-GM Dimension Min Nom Max A 0.80 0.85 0.90 A1 0.00 0.02 0.05 b 0.18 0.25 0.30 D 7.00 BSC D2 5.20 5.30 5.40 e 0.50 BSC E 7.00 BSC E2 5.20 5.30 5.40 L 0.30 0.40 0.50 aaa 0.15 bbb 0.10 ddd 0.05 eee 0.08 Notes: 1. All dimensions are shown in millimeters (mm) unless otherwise noted. 2. Dimensioning and tolerancing per ASME Y14.5M-1994. 3. This drawing conforms to JEDEC Outline MO-220, Variation VKKD-4. 4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice September 12, 2021