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ADSL Line Drivers from Texas Instruments Offer High Output Drive with Low Distortion in a Small PackageDALLAS (Sept. 21, 1998) -- Two new line drivers announced today by Texas Instruments (TI) deliver ultra-low distortion, high output drive and high speed for multiple bit rate versions of ADSL (asymmetrical digital subscriber line) Internet access technologies. One of the chips is designed for customer premise equipment applications; the other is tailored to central office equipment requirements. The line drivers are part of TI's aggressive efforts to leverage its world leadership DSP and analog technology in the ADSL communications market. ADSL will greatly improve Internet access speed and allow simultaneous voice and data communications over a single, standard telephone line.
TI's new THS6022 line driver is targeted at ADSL personal computer modems and remote terminal applications, which require less current than central office applications. It is also well suited for other forms of xDSL including HDSL (high data rate digital subscriber line) and VDSL (very high data rate digital subscriber line). Both the THS6012 and THS6022 are offered in TI's patented, thermally enhanced PowerPAD™ package. This innovative, small-footprint package eliminates the heatsink often required by other ADSL line drivers, allowing higher levels of density in central office ADSL equipment. Both of these devices offer low distortion of -72dB at 1 MHz over low impedance telephone lines. They feature high-speed, 140 MHz bandwidth at a slew rate of 1000V per microsecond. The THS6012 has a typical output drive capability of 500mA while the THS6022 has 250mA drive. Other characteristics shared by the two devices include independent power supply connections for low cross talk and a wide supply voltage operating range of +/-4.5V to +/-16V. xDSL Leveraging its expertise in network access and DSP solutions to deliver ADSL chipsets, TI is enabling extensible, affordable end-to-end interoperable solutions for high-speed remote access to the Internet or wide area network for corporate users and consumers. The company's family of standards-compliant ADSL chipsets deliver the performance and programmability necessary to support evolutionary versions of DSL, in addition to existing xDSL standards. xDSL high-speed data communication technologies include ADSL, splitterless ADSL, HDSL and VDSL. Service providers are currently testing high-speed data access based on these technologies in U.S. and European markets. Initial broad deployment is expected to begin in late 1998. Pricing and Availability Samples of the THS6012 and THS6022 are available now from TI and its authorized distributors, with production quantities planned for shipment in November 1998. Pricing in quantities of 1,000 is expected to be $4.80 for the THS6012 and $3.71 for the THS6022. The THS6012 and THS6022 join TI's THS6002, which combines a driver with a receiver in a single package. The THS6012 and THS6022 eliminate the receiver function and provide separate solutions for subscriber equipment and central office equipment. These offerings expand the ability of TI to meet the needs of a wide range of equipment providers.
More information about TI's high-speed amplifier products is available on the World Wide Web at http://www.ti.com/sc/amplifiers. More information about TI's ADSL chipsets is available at
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