Si3228x: ProSLIC Single-Chip Dual FXS Solution The Si3228x Dual ProSLIC devices, in a single package, implement two complete foreign exchange station (FXS) telephony interfaces. The Si3228x devices operate from KEY FEATURES a 3.3 V supply and have standard PCM/SPI or 3-wire ISI digital interfaces. A pair of built-in dc-dc converter controllers can be used to automatically generate the optimal Two complete FXS channels in a single 7x7 or 8x8 mm package battery voltage required for each line-state, optimizing efficiency and minimizing heat generation. The Si3228x devices are designed to operate with capacitive boost tracking Performs all BORSCHT functions battery supply for lower power, cost, and footprint vs. other tracking or shared battery Ideal for short- or medium-loop supplies in the industry. Self-testing and metallic loop testing (MLT) is facilitated by applications the built-in DSP, monitor ADC, and test load. The devices are available with wideband Ultra-low power consumption audio for better than PSTN voice quality, DTMF detection, and Smart Ringing. Smart Patented low-power ringing Ringing reduces the peak current with 2-channel ringing for lower-cost ac-dc adapters. Patent-pending Smart Ringing The Si3228x devices are available in a 7 x 7 mm 48-pin QFN or 8 x 8 mm 56-pin QFN Reduces peak current with 2-channel package. ringing Adaptive ringing Applications: Simplified configuration and diagnostics VoIP gateways and routers Supported by ProSLIC API xDSL IADs Audio diagnostics with loopback Optical Network Terminals/Units (ONT/U) Integrated test load Wideband voice support Analog Terminal Adapters (ATA) On-hook transmission Cable eMTA Loop or ground start operation Wireless Fixed Terminals (WFT) Smooth polarity reversal Wireless Local Loop (WLL) Programmable interrupts WiMAX CPE Software-programmable parameters: Private Branch Exchange (PBX) Ringing frequency, amplitude, cadence, VoIP MDU gateways and waveshape Two-wire ac impedance Transhybrid balance CODECCODECCODEC SLICSLIC DTMF and DTMF & DC current loop feed (1045 mA) TIP LinLinefeeefeedd Tone Gen ADC Tone Gen ADCADC ConControltrol Loop closure and ring trip thresholds Channel A Ground key detect threshold 3-wire ISI Caller ID RING LinLinefeeefeedd DAC DACDAC Host Interface or MoniMonitortor Flexible integrated tracking DC-DC PCM/SPI Ringing Ringing controller supporting patent-pending low- Interface Generator CODECCODECCODEC SLICSLIC Generator cost capacitive boost configuration DSPDSP TIP LinefeedLinefeed ADC ADCADC DTMF Generation Line Diagnostics Line Diagnostics ControlControl Channel B DTMF Detection (Si32281/3/5/7) RING LinefeedLinefeed DAC DACDAC DC-DC Controller 3-wire Integrated Serial Interface (ISI) or PCLK / PSCLK PLL MonitorMonitor PCM interface Si3228x A-Law/-Law companding, linear PCM Pulse metering Functional Block Diagram 3.3 V operation Pb-free/RoHS-compliant packaging Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 Rev. 1.0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 11, 2021 1 Programmable Programmable AC ImpedanceAC Impedance and Hybrid and Hybrid Linefeed Linefeed Si3228x: ProSLIC Single-Chip Dual FXS Solution Ordering Guide 1. Ordering Guide Table 1.1. Si3228x Ordering Guide 1 Description Package Type Max V Temperature P/N BAT 2 Si32280-A-FM Wideband Dual FXS, ISI 106 V 0 to 70 C QFN48 interface 2 Si32280-A-GM Wideband Dual FXS, ISI 106 V 40 to 85 C QFN48 interface 2 Si32281-A-FM Wideband Dual FXS, ISI 106 V 0 to 70 C QFN48 interface, DTMF detec- tion 2 Si32281-A-GM Wideband Dual FXS, ISI 106 V 40 to 85 C QFN48 interface, DTMF detec- tion 2 Si32282-A-FM Wideband Dual FXS, 106 V 0 to 70 C QFN56 PCM interface, daisy- chain mode 2 Si32282-A-GM Wideband Dual FXS, 106 V 40 to 85 C QFN56 PCM interface, daisy- chain mode 2 Si32283-A-FM Wideband Dual FXS, 106 V 0 to 70 C QFN56 PCM interface, DTMF detection, daisy-chain mode 2 Si32283-A-GM Wideband Dual FXS, 106 V 40 to 85 C QFN56 PCM interface, DTMF detection, daisy-chain mode 2 Si32284-A-FM Wideband Dual FXS, ISI 106 V 0 to 70 C QFN48 interface, Smart Ringing 2 Si32284-A-GM Wideband Dual FXS, ISI 106 V 40 to 85 C QFN48 interface, Smart Ringing 2 Si32285-A-FM Wideband Dual FXS, ISI 106 V 0 to 70 C QFN48 interface, DTMF detec- tion, Smart Ringing 2 Si32285-A-GM Wideband Dual FXS, ISI 106 V 40 to 85 C QFN48 interface, DTMF detec- tion, Smart Ringing 2 Si32286-A-FM Wideband Dual FXS, 106 V 0 to 70 C QFN56 PCM interface, daisy- chain mode, Smart Ring- ing 2 Si32286-A-GM Wideband Dual FXS, 106 V 40 to 85 C QFN56 PCM interface, daisy- chain mode, Smart Ring- ing 2 Si32287-A-FM Wideband Dual FXS, 106 V 0 to 70 C QFN56 PCM interface, DTMF detection, daisy-chain mode, Smart Ringing Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 1.0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 11, 2021 2