NXP＇s New Generation of LVDS DDR Interface DAC

Published:2011/5/10 21:36:00 Author:Phyllis From:SeekIC

NXP Semiconductors released a new generation of LVDS DDR interface digital-to-analog converter with 16-bit dual-channel which supports up to 1.25 G sample/s output update rates. The electronics giant claims that the high-speed DAC provides not only the best single tone performance in spurious free dynamic range but also two-tone intermodulation between a 200 MHz broad output bandwidth.

Primarily designed for wireless infrastructure applications, the DAC1627D1G25 is profitable and does not exclude the Multi-Carrier GSM spectral mask and the LTE and LTE-advanced transmit specification. For multi-standard radio base stations, the DAC1627D1G25 is an ideal. The DAC transmit architecture can cut down the system bill-of-material costs.

The company said that this DAC is mainly focused on wireless infrastructure that is related to the rapid growth in mobile data traffic and base stations. they are currently looking for 0.6 exabytes per month by 2015. A divide of that growth is the access of internet video, M2M connections , gaming, as well as VOIP. There is a lot of growth in mobile data traffic which is driving a need for base stations. The new converters will be used in macro, micro and pico base stations.

A CGVxpress version of the DAC1627D1G25 will emerge in the following months which uses the serial interface and makes a smaller package possible. NXP has a blueprint that meets the most demanding digital radio transmitter signal fidelity requirements when combined CGVxpress with CGV and NXP’s implementation of the industry-leading JESD204A high speed serial interface. The multi-carrier GSM spectral mask plays a vital role as it requires a combination of high linearity, low noise and high dynamic range. The DAC1627D1G25 is fully compliant to this very challenging process and the LTE/LTE-A Tx specifications.

The Multi-Device Sychronization is an element of NXP’s CGV technology feature set, which solves tough system synchronization and latency challenges in many digital communications system applications like active antenna array and MIMOLTE radio base stations.

At the IMS2011 and the IEEE MTT-S International Microwave Symposium held on June 7-9, 2011 in Baltimore, Maryland, the first demonstration of the DAC1627D will be made in the NXP booth. NXP also plans to showcase the BGX7100 IQ Modulator on a dedicated evaluation/demonstration printed circuit board to deliver optimum RF performance. The related integrated circuit is KDS181-RTK/P.

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