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VDSL line driver consumes 47% less power

Posted: 22 Mar 2011     Print Version  Bookmark and Share

Keywords:VDSL  line driver  broadband 

Texas Instruments Inc. introduces the THS6226, a gated, dual-port Class H VDSL line driver that claims 47 per cent less power usage than comparable Class AB alternatives targeting high-density VDSL applications used in high-speed broadband networks.

 THS6226 Class H VDSL line driver

The device offers a digitally adjustable quiescent current and simplifies product sourcing and design by covering all VDSL profiles with a single line driver.

Key features and benefits of the device include power consumption as low as 350mW for 17a profile; adjustable quiescent current of 7.6mA to 23.5mA with a current step of 1mA; multi-tone power ratio (MTPR) distortion of 70dB with 19.8dBm for VDSL2 profile 8b to help maintain signal fidelity; output swing on +12V power supplies, coupled with current drive that allows for up to 20dBm output power into the load.

Also, the device integrates an input biasing circuit and all gain and feedback resistors to reduce system board space and cost.

TI offers a SPICE-based simulation program for designing, testing, and troubleshooting a broad variety of basic and advanced circuits, including complex architectures, without any node or number of device limitations. It also offers software for application and calculation utilities, including an active filter design application and a fully differential amplifier component calculator.

The THS6226 VDSL line driver is available now in a 5 x 5mm QFN package, priced at Rs.68.22 ($1.50) in quantities of 1,000.

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