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TNETD4000R Remote ADSL Chipset
The new TNETD4000R remote terminal ADSL chipset from Texas Instruments is designed to give OEMs a complete, cost-effective and simplified way of building next-generation remote ADSL solutions. Designed for remote applications such as external modems, small office home office (SOHO) routers and residential gateways, the '4000R builds on TI's leadership in supplying breakthrough solutions for the ADSL industry.

The chipset leverages the industry's most advanced DSP core technology - TI' s TMS320C6000 generation - and leading-edge analog and integration capabilities to deliver a cost effective, interoperable and highly programmable solution for stand-alone customer premise applications. The '4000R chipset builds on two previous generations of modem design from Texas Instruments, leveraging Amati ADSL software and technology. Some of the advanced remote chipset features include:

  • High Integration
  • Lower Total System Cost
  • Design ease
  • Proven Interoperability
  • Maximum Programmability
TI's ADSL solutions inherit much of their programmability and interoperability from TI's purchase of Amati, a pioneer in the DSL industry. With the combination of TI's silicon expertise and Amati's seven years of standards-based DSL intellectual work, '4000R chipset customers get all of the technology they need to implement any version of ADSL. This represents a tremendous advantage in getting leading-edge products to market quickly.

The TNETD4000R chipset devices include:

TNETD4150 Universal Digital Interface
The Universal Digital Interface (UDI) provides the data interfaces (serial or Utopia 2) for the modem. Functions performed by the UDI include bearer channel muxing/demuxing, ADSL framing/deframing, ATM transmission convergence, Reed-Solomon encode/decode, CRC scrambling/descrambling, and interleave/deinterleave (8Kbytes on-chip interleave memory) .

TNETD4250 ADSL Transceiver
The TNETD4250 utilizes TI's industry-leading 'C6000 DSP technology to provide superior performance and unparalleled programmability. The device performs the ADSL digital signal processing and all real-time OA&M and management functions for the modem. Specific digital signal processing includes the control and processing of all initialization/training sequences and the steady state ADSL modem processing. The steady state processing functions include FFT/IFFT, line equalization (FEQ &TEQ) filtering and echo cancellation.

TNETD2011/13 ADSL Codecs
The TNETD2011 and '13 are high performance ADSL codecs that provide a 14-bit analog-to-digital converter, 14-bit digital-to-analog converter and a complete set of digital and analog filters. The '11 device features sets of filters for POTS while the '13 provides the filtering for ADSL over ISDN applications. The set of POTS filters in the '11 are applicable for both full-rate and G.lite implementations.

THS6022 Line Driver
A remote terminal line driver, the THS6022 contains two high-speed, high-current drivers capable of providing 250 mA output current (min) into a 50 ohm load. The drivers can be configured differentially to drive a 50-V p-p output signal over low-impedance lines.

THS6062 Line Receive
Using the latest ultra-low noise amplifier technology, the THS6062 consists of two low-noise, high-speed remote terminal line receive amplifiers.