ProSLIC

Copyright © 2009 by Silicon Laboratories

4.14.09

RING

TIP

SPI

Control

Interface

PCM/

GCI

Interface

DSP

DTMF &

Tone Gen

Caller ID

Ringing

Generator

ADC

DAC

CODEC

SLIC

Linefeed

Control

Linefeed

Monitor

DC-DC Controller

Line Diagnostics

PLL

PCLK

FSYNC

DRX

DTX

CS

SDI

SDO

SCLK

INT

RST

SPI

Control

Interface

PCM/

GCI

Interface

DSP

DTMF &

Tone Gen

Caller ID

Ringing

Generator

ADC

DAC

CODEC

CODEC

SLIC

Linefeed

Control

Linefeed

Monitor

DC-DC Controller

Line Diagnostics

PLL

PCLK

FSYNC

DRX

DTX

CS

SDI

SDO

SCLK

INT

RST

Si3217x

ADC

DAC

Optional FXO

Isolation

Interface

Control

Si3291x

C1A

C2A

C1B

C2B

Isolation

Interface

Hybrid and

dc

Termination

Ring Detect

Off-Hook

QE

QB

CID

IGND

VREG

DCT

RX

TIP

RING

FXS

FXO

Si3217x and Si3291x

ProSLIC® Single-Chip FXS Solution with FXO Option

Description

The Si3217x is a family of 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. Select parts in the series also implement

Silicon

Laboratories'

patented

capacitive

isolation

technology to enable seamless connection to Si3291x

series foreign exchange office (FXO) line-side devices. The

Si3217x ProSLIC ICs operate from a 3.3 V supply and

interface to standard PCM/SPI digital interfaces. The

Si3217x

integrated

dc-dc

controller

automatically

generates the optimal battery voltages required for each

line-state. Si3217x ICs are available with voltage ratings of



–110 V or –135 V to support a wide range of ringing

voltages. The Si3217x is available in a 5x7 mm 42-pin QFN

package. The Si3291x is available in a 16-pin SOIC

package.

Si3217x Features

Si3291x Features

Applications

Ordering Guide

FXS P/N

Description

Max Vbat

Temperature

Si32176-B-FM

FXS, wideband capable

–110 V

0 to 70 °C

Si32176-B-GM

FXS, wideband capable

–110 V

–40 to 85 °C

Si32177-B-FM

FXS, wideband capable

–135 V

0 to 70 °C

Si32177-B-GM

FXS, wideband capable

–135 V

–40 to 85 °C

Si32178-B-FM

FXS, DTMF detection, wideband capable with FXO support

–110 V

0 to 70 °C

Si32171-B-FM

FXS, DTMF detection, pulse metering

–110 V

0 to 70 °C

Si32171-B-GM

FXS, DTMF detection, pulse metering

–110 V

–-40 to 85 °C

FXO P/N

Region

Ringer Thresholds

On-hook Speeds

RoHS Compliant

Temperature

Si32911-A-FS

FCC/CTR21

1

2

Yes

0 to 70 °C

Si32919-A-FS

Global

3

3

Yes

0 to 70

C