Dsl line driver

Line drivers transmit broadband signals over a twisted pair, power lines or coax cable. Because this typically results in a point-to-point connection, a minimum of two drivers are needed, one at each end. The high output drive capability makes them suitable for use as a LED driver for light fidelity (LiFi) communications systems. DSL line drivers Line drivers supporting ADSL, VDSL, VDSL2 and www.doorway.ru for CPE (customer premise equipment) and CO (central office) applications. Digital Subscriber Line Drivers Back to top Offering the highest level of performance and reliability, Renesas' DSL line drivers cover both central office (CO) and customer premise equipment applications.

xDSL Line Drivers Analog Devices xDSL line driver amplifiers provide industry-leading performance for cable set top boxes, cable modems, xDSL modems, and xDSL central office line cards. Due to our portfolio’s very low noise, high speed, and overall high performance, we provide designers with a top tier solution that is widely deployed as xDSL receivers. The line-driver (LD) power consumption accounts for the largest part in the DSL power budget and scales with the transmit power (TP)[1–3]. With few exceptions[ 2, 4, 5 ], previous study has therefore focussed on minimizing the transmit sum-power[ 3, 6 – 8 ] through power spectral optimization, also known as dynamic spectrum management (DSM)[ 9 ]. 1. DSL Line driver • Drives phone line through a transformer • 8 load (drives ohms phone line through transformer) • Max swing = Vpp differential • Crest Factor = • RMS Power delivered = dBm • Signal Bandwidth MHz THD 80dB LD To splitter 1: 8

Communications line drivers, in particular DSL line drivers driving discrete multi-tone (DMT) signals with high crest factor (CF), can benefit from Class G. 8 чэр г. Also, the line driver output impedance and gain become insensitive to process and line variations. As an example, a line driver for ADSL. Figure 1 shows a complete central office DSL line driver/receiver. This is the basic circuit topology that provides differential transmit signal drive to.