Si4688-A10 Single-Chip, FM/HD/DAB/DAB+ Radio Receiver Description Features The Si4688 single-chip digital receiver is one member of a - Worldwide FM band support (76108 MHz) family of 100% CMOS digital radio broadcast receiver ICs - Advanced RDS/RBDS decoder from Skyworks. The Si468x family offers a complete and - FM HD Radio support with on-chip IBOC blend 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 Si4688 is compatible with the iBiquity Digital and - Concurrent I S/L-R stereo audio out NRSC-5 standards for FM In-Band-On-Channel (IBOC) - Full range of signal quality metrics digital radio broadcasting, integrating digital channel - Fully-integrated VCO / PLL / synthesizer demodulation and decoding functions, along with audio 2 - SPI and I C host control interfaces decoding and IBOC analog-digital blend. The Si4688 - WLCSP 62-ball, 3.2x3.77x0.59 mm supports IBOC multicasting, as well as the full-range of HD - QFN 48-pin, 7x7x0.85 mm Radio data services, such as PSD, Artist Experience, Applications iTunes Tagging, Bookmark and real-time Traffic, with the - Mobile phones and tablets appropriate external decoders. - Clock and tabletop radios The Si4688 also offers VHF Band III (168240 MHz) - Stereo boomboxes reception capability and is fully compliant with ETSI EN 300 - Mini/micro systems 401 and ETSI TS 102 563. The Si4688 delivers DAB and - Docking stations DAB+ via an integrated source decoder that supports both - Personal navigation devices MPEG Audio Layer 2 (DAB) and HE-AAC V2 (DAB+). The Si4688 supports data services such as Dynamic Labels, Intellitext, Electronic Program Guide (EPG), Slideshow, and Journaline with the appropriate external decoders. For more information, visit the Si468x Digital Radio Receivers web page: www.skyworksinc.com/en/Products/Audio-and-Radio/Si468x-Digital-Radios Si4688-A10 ADC DAC LOUT RFREF LNA DSP VHFI ADC DAC ROUT AGC DCLK RDS I2S DFS VHFSW VHF SW DOUT SCLK SSB CLK FLASH 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 RSTBSi4688-A10 Single-Chip, FM/HD/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 Time 60 ms/ch Input IP3 96 dBV Sensitivity SINAD = 26 dB 0.7 V FM HD Input Frequency Frf 87.5 108 MHz Seek Time 120 ms/ch DAB/DAB+ Input Frequency F 168 240 MHz rf Enable Acquisition Time 940 ms Si4688-A10-GM (QFN) Si4688-A10-GD (WLCSP) Dimension Min Nom Max Dimension Min Nom Max A 0.80 0.85 0.90 A 0.55 0.59 0.63 A1 0.00 0.02 0.05 A1 0.18 0.20 0.22 b 0.18 0.25 0.30 b 0.22 0.27 0.32 D 7.00 BSC D 3.20 BSC. D2 5.20 5.30 5.40 E 3.77 BSC. e 0.50 BSC d 0.40 BSC. E 7.00 BSC e 0.40 BSC. E2 5.20 5.30 5.40 D1 2.40 BSC. L 0.30 0.40 0.50 E1 3.20 BSC. aaa 0.15 aaa 0.10 bbb 0.10 bbb 0.10 ddd 0.05 ccc 0.03 eee 0.08 ddd 0.15 Notes: eee 0.05 1. All dimensions are shown in millimeters (mm) unless otherwise Notes: noted. 1. All dimensions shown are in millimeters (mm) unless otherwise 2. Dimensioning and tolerancing per ASME Y14.5M-1994. noted. 3. This drawing conforms to JEDEC Outline MO-220, Variation 2. Dimensioning and Tolerancing per ANSI Y14.5M-1994. VKKD-4. 3. Primary datum and seating plane are defined by the spherical 4. Recommended card reflow profile is per the JEDEC/IPC J- crowns of the solder balls. STD-020 specification for Small Body Components. 4. Dimension is measured at the maximum solder bump diameter, parallel to primary datum. 5. 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