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CMD announces new HDMI port protection solutions

Posted: 06 Sep 2006 ?? ?Print Version ?Bookmark and Share

Keywords:CMD? MediaGuard? HDMI? CM2030? CM2031?

MediaGuard port protection solutions from CMD

California Micro Devices (CMD) has announced new products in its MediaGuard family of integrated port protection solutions for high speed HDMI 1.3 interfaces in digital consumer devices such as digital TVs, DVD and recordable DVD players, flat panel monitors, STBs, PCs and video game consoles.

The new MediaGuard CM2030 and CM2031 multifunction application specific integrated passive devices integrate ESD protection, backdrive protection, overcurrent protection, voltage level shifting, as well as active DDC pullups and CEC slew rate limiting. They support the latest advanced HDMI 1.3 capabilities including higher speeds, as well as CEC enhancements and extended length cable support. CM2030 is intended for source applications such as DVD recorders and STBs, while CM2031 is intended for receiver applications such as digital TVs.

The two devices provide low capacitance ESD protection for all 12 data lines, according to CMD, providing the industry's lowest capacitance 0.9pF ESD diode arrays. The company said these devices represent a complete HDMI protection and signal integrity solution to support the advanced features for HDMI 1.3, including backdrive protection and electrical isolation on all signals, level shifting circuits for DDC, hot plug and CEC lines and overcurrent protection per HDMI spec for source ports (CM2030). Slew rate limiting on the CEC lines helps to minimize ringing and EMI, while the dynamic DDC pullups allow longer and less expensive cables to be used, explained CMD. The new devices also feature multiport DDC support, eliminating the need for an external analog switch when addressing multiple EEPROMs.

The CM2030 and CM2031 are available in a space saving 38-pin TSSOP package. They are currently sampling, with production scheduled for Q4 of this year. Pricing starts at $1.31 each in 1,000 units for the CM2030, and at $1.29 each in 1,000 units for the CM2031.

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