SI32261-C-GM Silicon Laboratories Inc, SI32261-C-GM Datasheet

SI32261-C-GM

Manufacturer Part Number

SI32261-C-GM

Description

IC PROSLIC FXS DUAL -110V 60QFN

Manufacturer

Silicon Laboratories Inc

Datasheet

1.SI32260.pdf (2 pages)

Specifications of SI32261-C-GM

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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Description

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

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.

Applications



ProSLIC

FSYNC

SCLK

PCLK

DRX

SDO

DTX

RST

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

SDI

INT

Shared

Interface

Control

PCM/

GCI

PLL

SPI

Supply

Generator

DC-DC Controllers

Tone Gen

DC-DC Controller

Caller ID

DTMF &

Ringing

Line Diagnostics

(TSS)

Si32260/1

DSP

mode

CODEC

ADC

DAC

ADC

DAC

ADC

DAC

deliver

Linefeed

Control

Monitor

SLIC

Control

power

Si32260/61 Features



TIP

RING

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



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:



Integrated dc-dc controllers with direct connection to MOSFET

Three high voltage supply options



DTMF generator/decoder

A-Law/µ-Law companding, linear PCM

GCI/IOM-2 mode support

3.3 V operation

Pb-free/RoHS-compliant packaging

Supported by ProSLIC API

GR-909 loop diagnostics

Audio diagnostics with loopback

Integrated test load

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

Full tracking

Tracking shared supplies

Fixed rail

GPIO2A / SRINGCa

GPIO1a / STIPCa

INTB / DTXENB

Single-Chip Dual ProSLIC®

SRINGDCa

SRINGACa

STIPDCa

STIPACa

SVBATa

CAPMa

FSYNC

CAPPa

SVDC

RSTB

TIPa

N/C

EPAD 1

EPAD 2

Si32260/61

GPIO2b / SRINGCb

TIPb

N/C

VDDA

GPIO1b / STIPCb

SRINGDCb

SRINGACb

STIPACb

STIPDCb

IREF

CAPPb

CAPMb

SVBATb

SDI

SDO

7.8.11

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