SI2457 SILABS [Silicon Laboratories], SI2457 Datasheet

SI2457

Manufacturer Part Number

SI2457

Description

Broadband AND Voice Telephony Solutions

Manufacturer

SILABS [Silicon Laboratories]

Datasheet

1.SI2457.pdf (2 pages)

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Broadband & Voice Telephony Solutions

D E S C R I P T I O N

Silicon Laboratories’ broad array of mixed-signal communication devices brings

unsurpassed integration, performance and value to broadband access and voice

telephony solutions. These integrated circuits provide global compliance using a single

hardware solution while reducing the PCB footprint and total solution bill-of-materials.

Optimized for customer premise equipment (CPE) applications, these best-in-class

solutions address global telecom standards through a high degree of programmability.

Additionally, these products are designed using standard digital CMOS. This reduces

power and cost while increasing system performance and flexibility through increased

integration without sacrificing system performance.

S Y S T E M B E N E F I T S

A P P L I C A T I O N S

• Small footprints save board space and discrete component cost

• Requires only 3.3 V and 5 V power supplies and eliminates the need for costly

• Reduces system power consumption

• Line voltage/current monitoring for remote system provisioning and fault detection

• Globally compliant solutions enable a single design for all countries

• PCM/SPI or GCI digital interfaces for FXS and FXO ports

• ADSL/cable modems

• Integrated access devices (IADs)

• PBX systems

• Voice over IP (VoIP) gateways and routers

additional power supplies

I N N O V A T I V E , F L E X I B L E , G L O B A L , E C O N O M I C A L

• Pair gain systems

• Line cards

• Computer telephony

K E Y P R O D U C T S

Si3216 ProSLIC

• Integrated CMOS SLIC/codec

• On-chip tracking dc-dc converter

• Wideband audio codec (Si3216)

• Software programmable for global compliance

• Internal ringing up to 100 V

• DTMF generation/decoding (Si3220)

• FSK caller ID generation

• On-chip GR-909 line diagnostics

Si3050 Voice DAA

• Integrated codec

• Globally compliant

• 16 selectable ac terminations

• Programmable hybrid

• Line voltage/current monitoring

• Loop start/ground start support

• PCM/SPI or GCI interface

•

• Greater than 5 kV line isolation

Si3110 ADSL2+ AFE

• Integrated line driver, codec, hybrid and VCXO

• Supports G.dmt, Annex A/B/C, ADSL2, ADLS2+

• 1 W typical power consumption

• Only 3.3 V and 5 V power supplies needed

• Programmable hybrid improves rate/reach

Si2457 ISOmodem

• Complete controller-based embedded modem

• Pin-compatible solutions from

• AT command UART or parallel interface

• Line-in-use and parallel phone intrusion detection

• Globally compliant line interface meets all PTT

• More than 5 kV line isolation

S O L U T I O N S G U I D E

controller (Si3216)

µ -

and SHDSL

2400 bps to 56 kbps

standards worldwide

law or A-law companding

SOLUTIONS FOR BROADBAND

COMPLETE MIXED-SIGNAL

ACCESS APPLICATIONS

and Si3220 Dual ProSLIC

Related parts for SI2457

SI2457 Summary of contents

Page 1

... Supports G.dmt, Annex A/B/C, ADSL2, ADLS2+ and SHDSL • typical power consumption • Only 3.3 V and 5 V power supplies needed • Programmable hybrid improves rate/reach Si2457 ISOmodem ® • Complete controller-based embedded modem • Pin-compatible solutions from 2400 bps to 56 kbps • ...

Page 2

... Voice-over-Broadband (VoB) solution. The Si3110 delivers industry leading ADSL performance in the smallest footprint by integrating the line driver, DAC, ADC, filters, VCXO and hybrid. The Si2457 provides a fully integrated V.90 modem for broadband backup, provisioning or remote system configuration. The Si3050 offers a globally-compliant interface to the switched network for emergency “ ...

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