SI32260-C-FM

Si32260/61 Single-Chip Dual ProSLIC® Description Si32260/61 Features The Si32260/1 Dual ProSLIC® devices, in a single package, implement two complete foreign exchange station (FXS) telephony interfaces. The Si32260/1 devices operate from a 3.3 V supply and have standard PCM/SPI or GCI bus digital interfaces. A pair of built-in dc-dc converter controllers can be used to automatically generate the optimal battery voltage required for each line-state, optimizing efficiency and minimizing heat generation. The Si32260/1 devices are designed to operate not only with a tracking battery supply for each channel for lowest power consumption, but also with shared battery supplies, for lowest cost. When used with shared battery supplies, the internal dc-dc controller operates in Tracking Shared Supply (TSS) mode to deliver power consumption lower than typical fixed voltage shared rail designs. Self-testing and metallic loop testing (MLT) (e.g., GR-909) is facilitated by the built-in DSP, monitor ADC, and test load. The devices are available with linefeed voltage ratings of –110 V (Si32260) or –140 V (Si32261) to support high voltage ringing, and both devices support wideband audio for better-than-PSTN voice quality. The Si32260/1 devices are available in a 8 x 8 mm 60-pin QFN package.         ProSLIC N/C RINGb N/C 49 48 47 N/C VBATb 50 N/C BASEb 51 BAT_PO 54 38 STIPDCb CAPMa 10 37 IREF 36 CAPPb EPAD 2 Copyright © 2011 by Silicon Laboratories 28 29 30 31 VDDD VDDREG CSB SCLK SDO 27 SDI 32 SDCHb 33 FSYNC 15 26 INTB / DTXENB 14 SDCLb SVBATb 25 34 24 CAPMb RSTB 13 23 35 DCDRVb SVDC 12 AUXoi / DCFFa RING 52 STIPACb CAPPa 9 SVBATa 11 TIP 53 N/C BASEa 55 N/C VBATa 56 39 AUXdrv / DCFFb Si32260/1 SRINGACb STIPDCa 8 22 DC-DC DC-DCControllers Controller SRINGDCb 40 DCDRVa PLL GPIO1b / STIPCb 41 STIPACa 7 21 Linefeed Monitor RING 42 SRINGACa 6 20 DAC SRINGDCa 5 SDCLa Linefeed Control GPIO2b / SRINGCb EPAD 1 SDCHa ADC Line Diagnostics RST PCLK SLIC VDDA 43 GPIO1a / STIPCa 4 DATAi / DRX INT DSP CODEC N/C 44 19 SCLK Ringing Generator DAC DAC Linefeed Monitor TIP TIPb 45 GPIO2A / SRINGCa 3 DATAo / DTX 18 SDO SPI Control Interface ADC ADC Linefeed Control 46 N/C 2 SDITHRU 16 CS SDI Caller ID SLIC Linefeed DTX DTMF & Tone Gen CODEC Linefeed DRX PCM/ GCI Interface Programmable Programmable AC ACImpedance Impedance and Hybrid TIPa 1 FSYNC 57      N/C   RINGa VoIP gateways and routers xDSL IADs Optical Network Terminals/Units (ONT/U) Analog Terminal Adapters (ATA) Cable eMTA Wireless Fixed Terminals (WFT) Wireless Local Loop (WLL) WiMAX CPE Private Branch Exchange (PBX) VoIP MDU gateways PSCLK / PCLK 17           59 Applications 60  58       Two complete FXS channels in 8 x 8 mm Performs all BORSCHT functions Ideal for short- or long-loop applications Ultra low power consumption Internal balanced or unbalanced ringing Patented low power ringing Adaptive ringing Simplified configuration and diagnostics Supported by ProSLIC API GR-909 loop diagnostics Audio diagnostics with loopback Integrated test load Wideband voice support On-hook transmission Loop or ground start operation Smooth polarity reversal Pulse metering PCM and SPI bus digital interfaces with programmable interrupts Software-programmable parameters: Ringing frequency, amplitude, cadence, and waveshape Two-wire ac impedance Transhybrid balance DC current loop feed (10–45 mA) Loop closure and ring trip thresholds Ground key detect threshold Integrated dc-dc controllers with direct connection to MOSFET Three high voltage supply options Full tracking Tracking shared supplies Fixed rail DTMF generator/decoder A-Law/µ-Law companding, linear PCM GCI/IOM-2 mode support 3.3 V operation Pb-free/RoHS-compliant packaging 7.8.11 Si32260/61 Single-Chip Dual ProSLIC® Selected Electrical Specifications Parameter Ambient Temperature Symbol TA Test Condition Min Typical Max Unit F-Grade 0 25 70 °C G-Grade –40 25 85 °C Supply Voltage VDD 3.13 3.3 3.47 V Battery Voltage VBAT –15 — –110/–140 V Maximum Loop Resistance  (loop + load) DC Differential Output  Resistance RLOOP ILOOP=18 mA, VBAT = –52 V — — 2000  RDO ILOOP < ILIM 160 — 640  Idle Channel Noise C-Message weighted — 8 12 dBrnC RX and TX, dc to 3.4 kHz — 55 — dB 200 Hz to 1 kHz 58 60 — dB 1 kHz to 3.4 kHz 53 58 — dB 200 Hz to 3.4 kHz 40 — — dB 200 Hz to 3.4 kHz at TIP or RING — 50 —  Active off-hook 200 Hz to 3.4 kHz — 25 — mA — — 45 mA 2-Wire Return Loss 200 Hz to 3.4 kHz 26 30 — dB Transhybrid Balance 300 Hz to 3.4 kHz 26 30 — dB — 42 — °C/W PSRR from VDD Longitudinal to Metallic/PCM  Balance (forward or reverse) Metallic/PCM to Longitudinal Balance Longitudinal Impedance Longitudinal Current per Pin DC Feed Current Thermal Resistance (QFN-60) θJA Ordering Guide FXS Pin Description Max Vbat Temperature Si32260-C-FM Dual FXS, wideband capable –110 V 0 to 70 °C Si32260-C-GM Dual FXS, wideband capable –110 V –40 to 85 °C Si32261-C-FM Dual FXS, wideband capable –140 V 0 to 70 °C Si32261-C-GM Dual FXS, wideband capable –140 V –40 to 85 °C *Note: Adding the suffix "R" to the part number (e.g., Si32261-C-FMR) denotes tape and ree Package Information 60-pin QFN MM Min Typ Max A 0.60 0.65 0.70 b 0.20 0.25 0.30 c 0.25 0.30 0.35 8.00 BSC D D2 6.35 7.50 BSC e 0.50 BSC E2 6.45 8.00 BSC E 6.35 E3 ProSLIC 6.40 D3 6.40 6.45 7.50 BSC E4 2.46 2.51 2.56 E5 3.34 3.39 3.44 L 0.35 0.40 0.45 L1 0.05 0.10 0.15 aaa 0.15 bbb 0.15 ccc 0.10 ddd 0.10 Copyright © 2011 by Silicon Laboratories Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders 7.8.11