Si4822/26-A10 BROADCAST ANALOG TUNING DIGITAL DISPLAY AM/FM/SW RADIO RECEIVER Features Worldwide FM band support Minimal BOM components with no (64109 MHz) manual alignment Worldwide AM band support Excellent real-world performance (5041750 kHz) Automatic frequency control (AFC) SW band support (Si4826 only) Two AAA batteries with 2.0 to 3.6 V (2.328.5 MHz) supply voltage (T = 25 C) Selectable support for all AM/FM/SW Wide range of ferrite loop sticks and regional bands air loop antenna support 2-wire control interface 24-pin SSOP package Ordering Information: Mono output RoHS compliant See page 19. Valid station indicator Not EN55020 compliant * *Note: For consumer applications that Digital volume support require EN 55020 compliance, use Bass/Treble support Pin Assignments Si4840/44. Applications Si4822/26-A10 (SSOP) Table and portable radios Modules for consumer electronics 1 24 AOUT LNA EN Boom boxes Toys, lamps, and any application 2 23 IRQ NC needing an AM/FM radio Clock radios 3 22 DBYP TUNE1 4 21 VDD2 TUNE2 Description 5 20 BAND VDD1 6 19 XTALI NC The Si4822/26 is the entry level analog-tuned digital-display digital CMOS 7 18 NC XTALO AM/FM/SW radio receiver IC that integrates the complete receiver function from 8 17 FMI SCLK 2 antenna input to audio output. Working with Host MCU (I C-compatible 2-wire 9 16 RFGND SDIO control interface), frequencies information can be displayed on LCD, while the 10 15 RST NC analog-tune features are kept. Leveraging Skyworks proven and patented digital 11 14 NC GND low intermediate frequency (low-IF) receiver architecture, the Si4822/26 delivers 12 13 GND AMI superior RF performance and interference rejection. The superior control algorithm integrated in Si4822/26 provides easy and reliable control interface while eliminating all the manual tuned external components used in traditional This product, its features, and/or its solutions. architecture is covered by one or more of the following patents, as well as other patents, pending and issued, both Functional Block Diagram foreign and domestic: 7,127,217 7,272,373 7,272,375 7,321,324 Si4822/26 Si4830/34 7,355,476 7,426,376 7,471,940 ADC AMI 7,339,503 7,339,504. AM LNA DSP DAC AOUT ANT RFGND ADC AGC FM FMI ANT 0/90 TUNE1/2 ADC AFC XTALI BAND CONTROL INTERFACE 2.0~3.6V VDD1/2 XTAL REG OSC Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice December 16, 2021 IRQ SCLK SDIO RSTSi4822/26-A10 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice December 16, 2021