W682388_1

Winbond W682388 Dual Programmable Extended CODEC/SLIC 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. 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. T FEATURES Performs complete BORSCHT functions for two channels on a single device Internal balanced ringing up to 90VPK (5REN up to 4kft) Integrated Power Management ▫ Integrated DC-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 41mA) ▫ Ring trip and loop closure thresholds Programmable signal generation ▫ 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 Loop test and diagnostics support ▫ Integrated loopback modes ▫ Realtime 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 1MHz / 2MHz 3.3V operation Small Footprint Packages: LQFP-64, QFN-64 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 Conditioning Z matching Z matching & TransHybrid DC / DC Control Signaling Tone Generation Metering Pulse Generation DTMF Generation DTMF Detection Loopback Control Mode Control Thermal Supervision Dual Single SPI PCM Sigma/delta DAC PCM Filters Sigma/delta ADC Ringing Generation FSK Generation Loop Supervision Line Diagnostic Gain Adjust Line Feed DACs Line Monitor ADC Ring Trip Detection Loop Closure Detection Loop Supervision DC feed Algorithm PLL DC/DC DC/DC Supervision W682388 Revision 1.1 - 01/2008 Application Example: Analog Telephone Adapter (ATA) supporting 2 voice ports t/r Analog PCM Protection Protection W682388 Control Discrete Discrete Front End Front End Ethernet SPI Dual Programmable Extended CODEC VoIP Processor DC-DC Converter VDD2 RDC2 RDC1 VDD1 BAT2 TDC2 RVE2 RVE1 TDC1 BAT1 TVE2 TVE1 TIN2 TIN1 TIP2 TIP1 BENEFITS 48 47 46 45 44 43 RIP1 RIN1 OTAP1 GND1 OTAN1 RAC1 TAC1 VDD3 GND3 CT1 CR1 VREF1 DCL1 DCH1 VSSP FS RIP2 RIN2 OTAP2 GND2 OTAN2 RAC2 TAC2 VDD4 GND4 CT2 CR2 VREF2 IREF DCL2 DCH2 RESET 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 W682388 64-Lead LQFP 64-Lead QFN 42 41 40 39 38 37 36 35 34 High integration reduces overall system BOM and footprint Low power consumption for battery-backup and other power sensitive applications High programmability reduces real-time software overhead Extensive line sensing enables diagnostics support W682388 ORDERING INFORMATION Part Number W682388DG W682388YG Package LQFP-64 QFN-64 Notes RoHS RoHS 16 33 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PCMR PCMT INT SDI CS TEST VDDL DCN2 VDD5 DCN1 GND5 BCLK DCP2 SCLK DCP1 SDO Note: For more details on the W682388, please refer to Winbond America’s web site at: http://www.winbond-usa.com © 2008 All Rights Reserved Printed in the U.S.A W682388 Revision 1.1 - 01/2008