Texas Instruments : 16-bit, dual-channel D-A converters have 1 Gbps LVDS inputs

Texas Instruments Inc. has introduced a high-performance 16-bit, dual channel, 1 GSPS (giga sample per second) digital-to-analog converter (DAC) family. The new single and dual-channel DAC family features a low-voltage differential signaling (LVDS) data input port at 1 Gbps, providing up to 400 MHz signal bandwidth. In addition, the DAC family offers flexible configuration options as well as industry-leading tools and support to ease design and speed time to market for base stations, wideband IF transmitters, radar, and test and measurement equipment. (See

Best-in-class performance and flexibility in a space-saving package Offered in a small 9 mm x 9 mm QFN package, the DAC568x family builds upon TI‚s commitment to offer high-performance, integrated solutions by providing a 70 percent space savings over traditional data converters. The devices provide several configuration options to support different transmit architectures, such as direct up-conversion, real or complex IF, and different wireless air interfaces such as WCDMA, TD-SCDMA, WiMAX and LTE. For an output frequency of 160 Mhz, the devices achieve 73 dB ACPR for a single-carrier WCDMA application or 67 dBc for a four-carrier application. Along with the single-channel DAC5681 and DAC5681Z, the dual DAC5682Z offers many digitally configurable features such as:

– Selectable low-, high-, or bypass filter modes
– Interpolation: 2x, 4x or bypass
– Optional +/-Fs/4 or +/-Fs/8 coarse mixer
– Optional 2x-32x clock multiplying PLL
– 8 sample input data FIFO

World-class tools and support reduce development time TI also offers a complete suite of easy-to-use evaluation modules (EVMs) to allow designers to make rapid systems-level evaluation with the DAC5682ZEVM for baseband outputs and the TSW3082 for RF output. In addition, across its complete DAC portfolio, TI offers the TSW3100 digital pattern generator. The tool provides inputs to either evaluation platform via a 1 GSPS LVDS bus with up to 256 mega vector pattern depths. Together, the evaluation modules and TSW3100 provide a quick and cost-effective evaluation solution and allow designers to fully realize the increased system performance provided by the family‚s wide bandwidth, including the following:

– Improved power amplifier linearization for digital pre-distortion (DPD) solutions with TI‚s GC5322 single-chip transmit processor solution
– Enhanced resolution for radar and advanced imaging
– Reduced cost of infrastructure, covering wide bandwidth with one implementation
– Implementation of more standards in software-defined radios
– Advanced system performance for test and measurement

To further simplify design, TI offers a wide variety of devices to complete the signal chain, including operational amplifiers (OPA695), a clock synchronizer and jitter cleaner (CDCM7005), an integrated PLL/VCO (TRF3761), and quadrature modulators (TRF3703). The DAC5682Z also works with TI‚s family of single- and multi-core wireless infrastructure-optimized digital signal processors.

Pricing and availability

The DAC5682Z is available now in a 64-pin quad flat no-lead (QFN) package and is priced at $31.95 each in 1,000-piece quantities (suggested resale pricing). Samples and EVMs for the entire 16-bit, 1 GSPS DAC family is available from

About Texas Instruments

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through manufacturing, design and sales operations in more than 25 countries. For more information, go to

For reader inquiries please contact:
Texas Instruments
European Customer Support Center
Toll Free: 00800 ASK TEXAS (00800 275 83927)
If Toll Free number is not available: +49 8161 80 2121

Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.

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