Le87281NQCT Microchip

Le87281 G.Fast Single Channel Line Driver Preliminary Data Sheet Document ID 147990 Version 5 December 2017 FEATURES Supports high frequency G.Fast transmission ORDERING INFORMATION Supports VDSL2 and ADSL2+ operation Very low power dissipation Le87281NQC 16-pin QFN Green Package Tray Class AB operation Le87281NQCT 16-pin QFN Green Package Tape and Reel 5 programmable states The green package meets RoHS 2 Directive 2011/65/EU of the No external gain resistors required European Council to minimize the environmental impact of electrical Small footprint package equipment. 16-pin (4 mm x 4 mm) QFN RoHS compliant BLOCK DIAGRAM APPLICATIONS G.Fast Line Driver S VS VDSL2 Line Driver Mode Control EN ADSL2+ CPE Line Driver GND VS DESCRIPTION VINA + VOUTA A The Le87281 is a single channel differential amplifier VS designed to drive G.Fast transmission signals as well as GND VDSL2 and ADSL2+ signals with very low power dissipation. The Le87281 contains a pair of wideband amplifiers designed with Microsemis HV15 Bipolar SOI process for low power consumption. The line driver gain is fixed internally. The amplifiers are powered from a single supply. VS The device can be programmed to one-of-three preset GND VOUTB Bias levels or to impedance controlled Disable or B VINB + Standby states. The control pins respond to input levels GND that can be generated with a standard tri-state GPIO. The Le87281 is available in a 16-pin (4 mm x 4 mm) QFN package with exposed pad for enhanced thermal conductivity. 1 Microsemi Corporation Confidential and ProprietaryLe87281 Preliminary Data Sheet TABLE OF CONTENTS Features 1 Applications .1 Description 1 Ordering Information .1 Connection Diagram .3 Pin Descriptions 4 Absolute Maximum Ratings .5 Thermal Resistance 5 Package Assembly .5 Operating Ranges 5 Device Specifications 6 State Control .7 Applications .8 Line Driver Protection .8 Physical Dimensions 9 16-Pin QFN 9 2 Microsemi Corporation Confidential and Proprietary