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UHF TV RF modulators shorten time-to-market

Posted: 16 Jan 2007 ?? ?Print Version ?Bookmark and Share

Keywords:CMOS? UHF? RF modulator? Freescale? modulators?

Freescale Semiconductor has introduced its first 3.3V UHF TV RF modulators based on CMOS technology. These modulators promise cost-effective, low-power solutions designed to help shorten design-to-market cycles. They also reduce system requirements for TV-related applications including DVD/DVDR players, modules and video games, as well as analog, digital and IP STBs for satellite, terrestrial or cable television.

"The introduction of our 3.3V CMOS RF modulators supports high-growth applications in the home entertainment consumer business segment worldwide," said Ritu Favre, manager of Freescale's application specific product operations organization.

Simplifies layout
The MC44CM373 and MC44CM374 devices meet current system application requirements with low component counts and minimal board space. They combine sound sub-carrier and UHF voltage controlled oscillators in a single-chip solution, thereby enabling designers to implement the RF output function with ease. The modulators do not require tuned components and have few critical RF paths, contributing to a simple layout and easy integration onto the system board.

The parts operate between 460MHz and 880MHz, are fully integrated and require no external active components or precision parts. They are extremely versatile and easily controlled by the high-speed I?C compatible bus and offer several modes to simplify production testing.

Exceptional RF performance
The use of the CMOS technology not only renders exceptional RF performance, but also helps to reduce power consumption and device cost. Both parts are offered in the space-saving plastic SOIC 16-pin package. An evaluation kit consisting of a board populated with the MC44CM373 CMOS modulator along with test software and user manual also is expected to be available.

Two versions of the modulators are available: the MC44CM373a world standard version supporting PAL/NTSC/SECAM; and the MC44CM374a PAL/NTSC-only version. Limited VHF functionality is available through the use of selectable internal dividers.

Freescale expects initial sampling for the modulators in May 2007, and production release in July 2007. Suggested OEM pricing for the MC44CM373 is expected to be $1.08 in quantities of 5,000 or greater and $1 in quantities of 5,000 or greater for the MC44CM374.




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