TI has started manufacturing the Class H line driver for high-density VDSL applications used in high-speed broadband networks. The dual-port THS6226 line driver offers a digitally adjustable quiescent current of 7.6 to 23.5mA with a current step of 1mA, allowing it to attain optimal power savings and achieve high linearity and low distortion. The company claims that the line driver simplifies product sourcing and design by covering all VDSL profiles with a single line driver. It offers multi-tone power ratio distortion of 70dB with 19.8dBm for VDSL2 profile 8b to help maintain signal fidelity. The device integrates an input biasing circuit and all gain and feedback resistors to reduce system board space. The company also offers tools such as the SPICE-based simulation program to quicken development of the line driver.
