Pro-X CODEC/SLCC

Part No.

W681388

Datasheet

Description

The W681388 implements a single channel FXS telephone line interface optimized for short loop applications. It integrates SLCC (Subscriber Line Control Circuit) functionality with a programmable CODEC and a DC-to-DC controller. The SLCC supports internal ringing up to 90 V_PK (5 REN at 4 kft) 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 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
For additional technical documentation please Contact Sales

Diagram

Block Diagram

Application Diagram

Features

Performs complete BORSCHT functions for a single channel with a single device
Internal balanced ringing up to 90 V_PK (5 REN up to 4 kft)
Integrated Power Management
- Integrated DC-to-DC controller regulates battery voltage to minimize power dissipation in all operating modes
Programmable linefeed characteristics
- Ringing frequency, amplitude, cadence
- Trapezoidal and Sinusoidal waveforms
- Two-wire AC impedance, transhybrid balance
- Constant Current feed (20 to 41 mA)
- Ring trip and loop closure threshold
Programmable signal generation
- DTMF generation and detection
- Metering pulse generation (12/16 kHz)
- 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
- Programmable audio path gains
Loop test and diagnostics support
- Integrated loopback modes
- Real-time linefeed monitoring
- On-chip temperature sensor
- PCM and SPI bus digital interfaces
- PCM Master and Slave modes supported
On-chip PLL for flexible clocking options including 1.000 MHz and 2.000 MHz BCLK operation
3.3V operation
Small Footprint Packages:LQFP-48, QFN-48

Package

LQFP-48, QFN-48

Other Files

W681388ProductBrief.pdf

Development Tools

N/A

Others

Parametric

PART NUMBER DESCRIPTION PACKAGE

W681388DG Pb-Free, single channel FXS telephone line interface, µ-law/A-law or 16-bit linear PCM LQFP-48

W681388YG Pb-Free, single channel FXS telephone line interface, µ-law/A-law or 16-bit linear PCM QFN-48

Contact us: CODEC@nuvoton.com