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Demodulator offers high integration, superior performance

Posted: 23 Aug 2005     Print Version  Bookmark and Share

Keywords:micronas  drx-h  demodulator 

Micronas unveiled its DRX-H family of multi-standard 8VSB/QAM/QPSK/NTSC demodulator products targeting applications in digital TV sets, STBs, multimedia PCs, DVD recorders, PVRs and tuner modules.

According to the company, the feature-rich DRX-H product family delivers superior performance and ATSC compliance in U.S. Digital Television (DTV) applications, while enabling compliance with the FCC Tuner Mandate. This mandate requires TV manufacturers to integrate digital receivers into televisions and certain other consumer electronics devices within certain deadlines.

Based on Micronas' primeD technology, the DRX-H promises to provide a superior solution to satisfy the increasing market demand for more robust and higher quality DTV reception performance. As opposed to merely filtering echoes out, primeD technology combines multiple echoes to create a single, stronger signal, resulting in enhanced overall reception quality. Devices employing DRX-H are able to cope with notoriously difficult terrestrial reception situations and provide measurable improvements to the overall DTV experience of consumers, said the press release.

"Unlike most competitors' implementations, the DRX-H demodulator does not simply discard undesired echoes but combines them in a unique patented manner with the desired signal which results in superior performance under realistic field conditions," explained Rich Citta, Chief Scientist of Micronas. "We are approaching theoretical limits of the 8VSB demodulation standard thanks to our unique implementation."

Offering one of the highest level of integration and performance of any solution on the market today, the DRX-H integrates an ATSC A/53-compliant 8VSB demodulator with an ITU-T J.83 Annex B-compliant QAM demodulator, a high quality NTSC demodulator, and a BTSC decoder, as well as an OOB (Out of Band) QPSK demodulator and OOB Local Oscillator for seamless integration into DCR (Digital Cable Ready) television sets.

The DRX-H is designed for applications ranging from flat panel HDTVs to highly space-constrained Integrated Tuner/Demodulator (IT/D) modules. All features of the DRX-H are controlled via a standard I²C-interface. The DRX-H includes its own on-chip memory.

Micronas offers four versions of the DRX-H, with tailored functionality and corresponding ASP, in order to deliver the best cost versus feature ratio for different market applications. All are available in a 14-by-20mm 128 pin QFP package.

Additionally, the DRX-H solution includes a range of software modules to control the device. All modules share a common API. This allows customers to complete their design and get to production quickly.

Samples are available today, with mass production planned for Q3 of 2005.




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