Model No: SI32261-C-FM1R
Skyworks Solutions Inc. SI32261-C-FM1R
Manufacturer: Skyworks Solutions Inc.
SEMICON NO.: SI32261-C-FM1R
Package: 60-WFQFN
Stock: In stock
Description: Telecom Interface Dual ProSLIC
SEMICON NO.: SI32261-C-FM1R
Package: 60-WFQFN
Stock: In stock
Description: Telecom Interface Dual ProSLIC
Quantity :
| Mfr | Skyworks Solutions Inc. |
| Device Type | Telecom Interface IC – SLIC & CODEC |
| Product Series | ProSLIC® |
| Number of Circuits / Channels | 2 (Dual FXS) |
| Function | SLIC and CODEC |
| Linefeed Voltage Rating (Si32261) | –140 V |
| Digital Interface Options | PCM, SPI, GCI |
| Supply Voltage | 3.13 V to 3.47 V |
| Operating Supply Voltage | 3.3 V |
| Operating Temperature | 0°C to +70°C |
| Package | 60-WFQFN |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
SI32261-C-FM1R Dual-Channel ProSLIC FXS Telephony Interface
The SI32261-C-FM1R is a dual-channel ProSLIC (Programmable Subscriber Line Interface Circuit) from Skyworks Solutions, originally developed by Silicon Labs, that implements two complete foreign exchange station (FXS) telephony interfaces in one 8 x 8 mm, 60-pin QFN package. Running from a single 3.3 V supply (3.13 V to 3.47 V) over 0 C to +70 C, it performs all BORSCHT functions and carries a -140 V linefeed rating, against -110 V for the Si32260 sibling, to support high-voltage ringing.
A pair of built-in dc-dc converter controllers drives external MOSFETs directly in full-tracking, tracking-shared-supply (TSS) or fixed-rail mode, automatically generating the optimum battery voltage per line state so efficiency rises and heat falls. The chip also provides internal balanced or unbalanced ringing with patented low-power and adaptive ringing, wideband voice, on-hook transmission, loop or ground start, smooth polarity reversal and pulse metering. A built-in DSP, monitor ADC and integrated test load enable self-test and metallic loop testing such as GR-909, while a standard PCM/SPI or GCI (IOM-2) interface connects the host. On-chip DTMF generation and decoding, A-law/mu-law companding and linear PCM complete a compact two-line analog voice front end for gateways, terminal adapters and optical network units.
Applications
● VoIP gateways, routers and VoIP MDU gateways.
● xDSL integrated access devices (IADs) and Optical Network Terminals/Units (ONT/U).
● Analog Terminal Adapters (ATA) and cable eMTA modems.
● Wireless Fixed Terminals (WFT), Wireless Local Loop (WLL) and WiMAX CPE.
● Private Branch Exchange (PBX) and key telephone systems.
Frequently Asked Questions
Q: Why choose a dual ProSLIC instead of two single-line SLICs? A: Two full FXS channels share one 60-pin QFN, saving board area, cost and host interface pins.
Q: What supply rails are required? A: A single 3.3 V logic supply (3.13 V to 3.47 V) plus battery and ringing rails generated by the internal dc-dc controllers.
Q: How high a ringing voltage is supported? A: The Si32261 is rated -140 V, versus -110 V for the Si32260 version.
The SI32261-C-FM1R is a dual-channel ProSLIC (Programmable Subscriber Line Interface Circuit) from Skyworks Solutions, originally developed by Silicon Labs, that implements two complete foreign exchange station (FXS) telephony interfaces in one 8 x 8 mm, 60-pin QFN package. Running from a single 3.3 V supply (3.13 V to 3.47 V) over 0 C to +70 C, it performs all BORSCHT functions and carries a -140 V linefeed rating, against -110 V for the Si32260 sibling, to support high-voltage ringing.
A pair of built-in dc-dc converter controllers drives external MOSFETs directly in full-tracking, tracking-shared-supply (TSS) or fixed-rail mode, automatically generating the optimum battery voltage per line state so efficiency rises and heat falls. The chip also provides internal balanced or unbalanced ringing with patented low-power and adaptive ringing, wideband voice, on-hook transmission, loop or ground start, smooth polarity reversal and pulse metering. A built-in DSP, monitor ADC and integrated test load enable self-test and metallic loop testing such as GR-909, while a standard PCM/SPI or GCI (IOM-2) interface connects the host. On-chip DTMF generation and decoding, A-law/mu-law companding and linear PCM complete a compact two-line analog voice front end for gateways, terminal adapters and optical network units.
Applications
● VoIP gateways, routers and VoIP MDU gateways.
● xDSL integrated access devices (IADs) and Optical Network Terminals/Units (ONT/U).
● Analog Terminal Adapters (ATA) and cable eMTA modems.
● Wireless Fixed Terminals (WFT), Wireless Local Loop (WLL) and WiMAX CPE.
● Private Branch Exchange (PBX) and key telephone systems.
Frequently Asked Questions
Q: Why choose a dual ProSLIC instead of two single-line SLICs? A: Two full FXS channels share one 60-pin QFN, saving board area, cost and host interface pins.
Q: What supply rails are required? A: A single 3.3 V logic supply (3.13 V to 3.47 V) plus battery and ringing rails generated by the internal dc-dc controllers.
Q: How high a ringing voltage is supported? A: The Si32261 is rated -140 V, versus -110 V for the Si32260 version.
Alternative and Equivalent Telecom Interface IC Models
●SI32260-C-FM1R - the -110 V sibling, functionally identical but with a lower linefeed voltage rating for lower-ring applications.
●SI32266 / SI32267 - the dual ProSLIC versions that replace the PCM/SPI and GCI bus with a proprietary three-wire Integrated Serial Interface (ISI).
●SI3217x - single-channel ProSLIC devices for one-line ports that do not need the dual configuration.
●Le9642 (Microchip) - a dual-channel FXS SLIC with integrated dc-dc control that serves as a cross-vendor functional equivalent.
●SI32260-C-FM1R - the -110 V sibling, functionally identical but with a lower linefeed voltage rating for lower-ring applications.
●SI32266 / SI32267 - the dual ProSLIC versions that replace the PCM/SPI and GCI bus with a proprietary three-wire Integrated Serial Interface (ISI).
●SI3217x - single-channel ProSLIC devices for one-line ports that do not need the dual configuration.
●Le9642 (Microchip) - a dual-channel FXS SLIC with integrated dc-dc control that serves as a cross-vendor functional equivalent.
