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TI positions 16bit, dual-channel DAC

Posted: 03 Apr 2008 ?? ?Print Version ?Bookmark and Share

Keywords:DAC? dual-channel 16bit? data conversion?

Texas Instruments Inc. has announced a high-performance 16bit, dual-channel, 1GSps DAC family. The new single- and dual-channel DAC family features an LVDS data input port at 1Gbit/s, providing up to 400MHz signal bandwidth. In addition, the DAC family offers flexible configuration options as well as tools and support to ease design and speed time-to-market for base stations, wideband IF transmitters, radar, and test and measurement equipment.

Offered in a 9mm x 9mm QFN package, the DAC568x family delivers 70 percent space savings over conventional 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 W-CDMA, TD-SCDMA, WiMAX and LTE.

For an output frequency of 160MHz, the devices achieve 73dB ACPR for a single-carrier W-CDMA application or 67dBc for a four-carrier application, says TI. 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; and 8 sample input data FIFO.

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.

The DAC5682Z is available in a 64-pin QFN package and sells for $31.95 each in 1,000-piece quantities.

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