Winbond W682388 Dual Programmable Extended CODEC/SLIC FEATURES 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. 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 Conditioning Z matching & TransHybrid Metering Pulse Generation PCM Filters Ringing Generation DTMF Generation Gain Adjust FSK Generation DTMF Detection Ring Trip Detection Loop Supervision Loopback Control Loop Closure Detection Line Diagnostic Mode Control Sigma/delta ADC Line Monitor ADC Signaling Tone Generation Sigma/delta DAC Line Feed DACs 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 Loop Supervision DC / DC Control DC feed Algorithm PCM SPI Thermal Supervision PLL DC/DC Supervision Dual Single W682388 Revision 1.1 - 01/2008 Application Example: Analog Telephone Adapter (ATA) supporting 2 voice ports Analog PCM W682388 Discrete Front End Protection t/r Dual Programmable Extended CODEC Control Ethernet SPI VoIP Processor VDD1 TIP1 TIN1 BAT1 TVE1 TDC1 RDC1 RVE1 RVE2 RDC2 TDC2 TVE2 BAT2 TIN2 10 40 39 11 38 12 37 13 36 14 35 15 34 RIP1 RIN1 OTAP1 GND1 OTAN1 RAC1 TAC1 VDD3 GND3 CT1 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 CR1 VREF1 DCL1 DCH1 VSSP FS Part Number Package Notes W682388DG LQFP-64 RoHS W682388YG QFN-64 RoHS PCMT 16 33 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 INT RESET 9 41 PCMR DCL2 DCH2 W682388 64-Lead LQFP 64-Lead QFN 8 BCLK IREF 42 DCP1 VREF2 43 7 DCN1 CR2 6 VDD5 CT2 44 VDDL GND4 5 DCN2 VDD4 45 GND5 TAC2 46 4 DCP2 RAC2 3 TEST OTAN2 47 CS GND2 48 2 SCLK OTAP2 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 SDO RIN2 BENEFITS 1 SDI RIP2 TIP2 VDD2 DC-DC Converter 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