W682388_1 WINBOND [Winbond], W682388_1 Datasheet

W682388_1

Manufacturer Part Number

W682388_1

Description

Dual Programmable Extended CODEC/SLIC

Manufacturer

WINBOND [Winbond]

Datasheet

1.W682388_1.pdf (2 pages)

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line interface optimized for short loop applications. It

integrates dual SLIC (Subscriber Line Interface Circuit)

functionality with a dual channel programmable CODEC and a

dual DC-DC controller. The SLIC supports internal ringing up

to 90VPK (5REN at 4kft), ideal for customer premise equipment

(CPE). The CODEC can be configured for μ-law/ A-law or

16-bit linear PCM encoding and supports a comprehensive set

of signaling capabilities required to supervise and control both

telephone lines. These include tone generation (including ring

tones), DTMF generation and detection as well as FSK and

metering pulse generation. An on-chip dual pulse width

modulation (PWM) driver allows the control of DC-DC

conversion for each line. Programmable impedance and

transhybrid balancing allow for worldwide deployment.

APPLICATIONS

Analog Telephone Adapter

Voice enabled DSL Modems

Voice enabled Cable Modems

Residential VoIP Gateways / Routers

Integrated Access Devices

Fiber to the Premise/Home (FTTP/H)

Optical Network Terminals (ONT)

Set Top Boxes

Wireless Local Loop

PBX

ISDN NT1/TA

he W682388 implements a dual channel FXS telephone

DC / DC

Control

Dual Programmable Extended CODEC/SLIC

Sigma/delta

Line Monitor

Line Feed

DAC

ADC

DACs

Winbond W682388

Loop Closure

Conditioning

PCM Filters

Gain Adjust

Algorithm

Ring Trip

Detection

DC feed

DC/DC Supervision

Loop Supervision

Supervision

Generation

FEATURES

Diagnostic

Ringing

Performs complete BORSCHT functions for two channels on a

single device

Internal balanced ringing up to 90VPK (5REN up to 4kft)

Integrated Power Management

▫

Programmable linefeed characteristics

▫

Programmable signal generation

▫

Loop test and diagnostics support

▫

PCM and SPI bus digital interfaces

▫

On-chip PLL for flexible clocking options including 1MHz / 2MHz

3.3V operation

Small Footprint Packages: LQFP-64, QFN-64

Loop

Tone

Line

FSK

Integrated DC-DC controller regulates battery voltage to

minimize power dissipation in all operating modes

Ringing frequency, amplitude, cadence

Trapezoidal and Sinusoidal waveforms

Two-wire AC impedance, transhybrid balance

Constant Current feed (20 to 41mA)

Ring trip and loop closure thresholds

DTMF generation and detection

Metering pulse generation (12/16kHz)

Enhanced Caller ID (FSK) generation (Type I and Type II)

Tone generation (up to four simultaneous)

G.711 μ-Law/A-Law / 16-bit linear PCM audio

Integrated loopback modes

Realtime linefeed monitoring

On-chip temperature sensor

PCM Master and Slave modes supported

Signaling

Metering Pulse

Supervision

Generation

Loopback

Detection

Thermal

Control

DTMF

Mode

PCM

PLL

SPI

Revision 1.1 - 01/2008

Single

Dual

W682388

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W682388_1 Summary of contents

Page 1

Dual Programmable Extended CODEC/SLIC T he W682388 implements a dual channel FXS telephone line interface optimized for short loop applications. It integrates dual SLIC (Subscriber Line Interface Circuit) functionality with a dual channel programmable CODEC and a dual DC-DC controller. ...

Page 2

Application Example: Analog Telephone Adapter (ATA) supporting 2 voice ports DC-DC Converter DC-DC Converter RIP2 1 RIN2 2 ...

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