Si3217x-C PROSLIC SINGLE-CHIP FXS SOLUTION Si3217x-C Features Complete FXS solution in 5 x 7 mm Software-programmable parameters: Performs all BORSCHT functions Ringing frequency, amplitude, Ideal for short to medium loops cadence, and waveshape Global programmability Two-wire ac impedance Internal balanced or unbalanced Transhybrid balance ringing DC current loop feed (10-45 mA) Patented low power ringing Loop closure and ring trip thresholds Simplified configuration and Ordering Information Ground key detect threshold diagnostics GCI/IOM-2 mode support See page 39. Supported by ProSLIC API DTMF generation Ultra low power consumption DTMF detection (Si32170/1/4) Integrated tracking dc-dc controller Pin Assignments with direct connection to MOSFET Pulse metering (Si32170/1) Si3217x-C Wideband voice support 3.3 V operation (Si32174/6/7) Support for 1.8 V I/O On-hook transmission Maximum battery up to 140 V VDDIO 42 41 40 39 38 37 36 1 35 NC Loop or ground start operation Pb-free/RoHS-compliant SDI 34 2 GPIO1/STIPC SDO 3 33 GPIO2/SRINGC Smooth polarity reversal packaging HVPAD SCLK 4 32 SRINGDC SDITHRU 5 31 SRINGAC PCM and SPI bus digital interfaces CS 6 30 STIPAC with programmable interrupts FSYNC 7 29 STIPDC PCLK 8 28 VDD A-Law/-Law companding, INT 9 27 QGND GNDPAD linear PCM NC 10 26 IREF NC 11 25 CAPM DTX 12 24 CAPP Applications DRX 13 23 CAPLB 14 15 16 17 18 19 20 21 22 DCFF SVBAT Customer Premise Equipment Integrated Access Devices (IAD) (CPE) Analog Terminal Adapters (ATA) VoIP DSL Gateways and Routers Small Office/Home Office PBX Wireless Local Loop (WLL) Patents pending Description The Si3217x-C devices are pin-compatible single-channel ProSLIC products that implement a complete foreign exchange station (FXS) telephony interface solution in accordance with all relevant LSSGR, ITU, and ETSI specifications. The Si3217x-C ProSLIC ICs operate from a 3.3 V supply and interface to standard PCM/SPI digital interfaces with 3.3 V or 1.8 V I/O. The Si3217x integrated dc-dc controller automatically generates the optimal battery voltages required for each linestate. Si3217x-C ICs are available with voltage ratings of 110 V or 140 V to support a wide range of ringing voltages. See the Ordering Guide for the voltage rating of each Si3217x-C version. The Si3217x devices are available in a 5x7 mm 42-pin QFN package. Refer to the Si3217x-Si3291x data sheet for information on revision B Si3217x devices, including the Si32178/9 and Si32911/9 devices for FXS with FXO functionality. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 31, 2021 SDCH HVPAD SDCL NC DCDRV TIP VDD NC VDDREG RING RST NC SVDC VBATSi3217x-C Functional Block Diagram COCOCODEDEDECCC SLSLIICC PCPCMM// FSFSYYNNCC DTDTMM FF & & TIP DRDRXX GCGCII LiLineneffeedeed ADC ToTonnee G G eenn ADADCC CContontrrolol DTDTXX IInntteerrffaceace FXS RING CC aallellerr I IDD LiLineneffeedeed CSCS DAC DADACC MMonionittoror SDISDI SPISPI RiRinnggiinngg SDSDOO CoConnttrrooll GGeneenerraattoorr SCLSCLKK DSDSPP InIntteerrffaaccee ININ TT LLiinne De D iiagnoagnossttiiccss RSRSTT PCLPCLKK PLPLLL DCDC--DC CoDC Connttrroolllleerr Si3217x-C 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 31, 2021 PrProogrgammabrammable le AC ImpAC Impedaedancence anand Hd Hyybridbrid Linefeed