SI3200-X-FS SILABS [Silicon Laboratories], SI3200-X-FS Datasheet

SI3200-X-FS

Manufacturer Part Number

SI3200-X-FS

Description

Manufacturer

SILABS [Silicon Laboratories]

Datasheet

1.SI3200-X-FS.pdf (112 pages)

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Features

Applications

Description

The Dual ProSLIC

SLIC and codec functionality into a single IC to provide a complete dual-channel

analog telephone interface in accordance with all relevant LSSGR, ITU, and ETSI

specifications. The Si3220 includes internal ringing generation to eliminate

centralized ringers and ringing relays, and the Si3225 supports centralized ringing

for long loop and legacy applications. On-chip subscriber loop and audio testing

allows remote diagnostics and fault detection with no external test equipment or

relays. The Si3220 and Si3225 operate from a single 3.3 or 5 V supply and

interface to standard PCM/SPI or GCI bus digital interfaces. The Si3200 linefeed

interface IC performs all high-voltage functions and operates from a 3.3 V or 5 V

supply as well as single or dual battery supplies up to 100 V. The Si3220 and

Si3225 are available in a 64-pin thin quad flat package (TQFP), and the Si3200 is

available in a thermally-enhanced 16-pin small outline (SOIC) package.

Functional Block Diagram

Rev. 1.2 2/06

FSYNC

SCLK

PCLK

SDO

DRX

DTX

SDI

Performs all BORSCHT functions

Ideal for applications up to 18 kft

Internal balanced ringing to 65 V

(Si3220)

External bulk ringer support (Si3225)

Software-programmable parameters:

Automatic switching of up to three battery

supplies

On-hook transmission

Digital loop carriers

Central Office telephony

Pair gain remote terminals

Wireless local loop

U A L

Ringing frequency, amplitude, cadence,

and waveshape (Si3220)

Two-wire ac impedance

Transhybrid balance

DC current loop feed (18–45 mA)

Loop closure and ring trip thresholds

Ground key detect threshold

INT RESET

Interface

Control

PCM /

PLL

GCI

SPI

R O

is a series of low-voltage CMOS devices that integrate both

Subscriber Line

& Ring Trip

Pulse Metering

Generator

Programmable

Modem Tone

Audio Filters

Ringing

Diagnostics

Generators

Sense

Dual Tone

Detection

S L I C

Si3220/25

DSP

Hybrid Balance

DTMF Decode

& Ground Key

Loop Closure,

Relay Drivers

Impedance

Gain Adjust

2-Wire AC

Detection

Caller ID

rms

FSK

text

Private Branch Exchange (PBX) systems

Cable telephony

Voice over IP/voice over DSL

ISDN terminal adapters

R O G R A M M A B L E

Codec A

Codec B

DAC

ADC

DAC

ADC

Loop or ground start operation with

smooth/abrupt polarity reversal

Modem/fax tone detection

DTMF generation/decoding

Dual tone generators

A-Law/µ-Law, linear PCM

companding

PCM and SPI bus digital interfaces

with programmable interrupts

GCI mode support

3.3 or 5 V operation

GR-909 loop diagnostics

Audio diagnostics with loopback

12 kHz/16 kHz pulse metering

(Si3220)

FSK caller ID generation

Lead-free/RoHS-compliant

SLIC A

SLIC B

Linefeed

Control

Monitor

Control

Monitor

Linefeed

Interface

Linefeed

Interface

Channel A

Channel B

C M O S S L I C / C

TIP

RING

TIP

RING

U.S. Patent #6,567,521

U.S. Patent #6,812,744

Other patents pending

Part Number

See “Dual ProSLIC Selection

S i3220/25

Si3220

Si3225

Ordering Information

Guide” on page 109.

Ringing

External

Method

Internal

Ringer

O D E C

Si3220/25

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