w681388 Winbond Electronics Corp America, w681388 Datasheet

w681388

Manufacturer Part Number

w681388

Description

Single Programmable Extended Codec/slic

Manufacturer

Winbond Electronics Corp America

Datasheet

1.W681388.pdf (2 pages)

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w681388DG

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line interface optimized for short loop applications. It integrates

SLIC (Subscriber Line Interface Circuit) functionality with a

programmable CODEC and a DC-to-DC controller. The SLIC

supports internal ringing up to 90 V

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 pulse width modulation (PWM) driver

allows the control of DC-to-DC conversion for the 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

he W681388 implements a single channel FXS telephone

DC / DC

Control

Single Programmable Extended CODEC/SLIC

Sigma/delta

Line Monitor

Sigma/delta

Line Feed

DAC

ADC

DACs

(5 REN at 4 kft), ideal

Nuvoton W681388

Loop Closure

Conditioning

Gain Adjust

PCM Filters

Ring Trip

Algorithm

Detection

DC feed

DC/DC Supervision

Loop Supervision

Supervision

Generation

FEATURES

Diagnostic

Ringing

Performs complete BORSCHT functions for a single channel

with 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-48, QFN-48

Loop

Tone

FSK

Line

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

DTMF

PCM

PLL

SPI

Revision 1.1 - 01/2008

W681388

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w681388 Summary of contents

Page 1

... Single Programmable Extended CODEC/SLIC T he W681388 implements a single channel FXS telephone line interface optimized for short loop applications. It integrates SLIC (Subscriber Line Interface Circuit) functionality with a programmable CODEC and a DC-to-DC controller. The SLIC supports internal ringing REN at 4 kft), ideal PK for customer premise equipment (CPE) ...

Page 2

... QFN/LQFP 7 NC2 8 NC3 9 TEST 10 INT Note: For more details on the W681388, please refer to Nuvoton America’s web site at: © 2008 All Rights Reserved Analog Analog PCM PCM W681388 W681388 Single Single Control Control SPI ...

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