PRELIMINARY TECHNICAL DATA a Adaptive Linear PowerTM +12V ADSL-CO Line Driver AD8393 Preliminary Technical Data FEATURES * * * Analog Devices' Adaptive Linear PowerTM architecture o Low power consumption for DSL line driver applications o Enables high port density Central Office modems. Single +12V supply (or +/-6V supplies) o 600mW total power consumption for non-overlapped applications (19.8dBm line power into 70 resistive load) o 660mW total power consumption for overlapped applications (20.4 dBm line power into 70 resistive load) MTPR of -67.4dBc (526KHz, 5.3 Crest Factor, non) overlapped, RL= 70 BENEFITS * * Fig. 1. AD8393 MTPR Performance Reduces system complexity and cost - Low power architecture enables greater port density, reduced thermals, and lower system power. Simplifies line card voltage requirements - Single supply operation (+12V) for CO designs. APPLICATIONS * * ADSL DSLAMs xDSL line cards using DMT signals PRODUCT DESCRIPTION The AD8393 is a low power, high output current, low distortion line driver that enables increased port density in DSL line card designs. The AD8393 features ADI's Adaptive Linear PowerTM architecture, which delivers the same performance typically found with +/-12V drivers, but does so with a single +12V supply. The AD8393 is designed to drive DMT (Discrete Multi-Tone) signals with a Peak to Average Ratio of 3.3 to 6.4. Driving a DMT signal with a Peak to Average Ratio of 5.3, the AD8393 consumes only 600mW of total power for non-overlapped ADSL applications (19.8dBm line power into 69.8 resistive load). The AD8393-1 has been optimized for peak input signals (PMPP-PMPN) of 1.0V to 1.3V. The AD8393-2 has been optimized for peak input signals (PMPP-PMPN) of 0.6V to 0.9V. Fig. 2. AD8393 single +12V supply operation showing Adaptive Linear PowerTM supplies and driver outputs. Internally, the supplies (Vccp, Veep) are brought outside the rails to accommodate peaks above 12 V and below GND. To inquire about AD8393 samples and an evaluation board, contact Analog Devices via email at: high_current_drivers.com@analog.com The AD8393 is available in a 32L 5x5mm LFCSP package. REV. PrD June 2002 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. *Adaptive Linear PowerTM is a trademark of Analog Devices, Inc. **Patents Pending One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 U . S . A . Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 (c)Analog Devices, Inc., 2002