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RF/Microwave??

CMMB receiver IC offers -100dBm sensitivity

Posted: 29 Jul 2009 ?? ?Print Version ?Bookmark and Share

Keywords:mobile TV? CMMB? receiver chip? processor?

Mobile TV chipmaker Siano Mobile Silicon has rolled out the SMS1186 TV receiver chip, touted to offer a complete, high quality, cost-effective and secure solution for the new business models of the emerging China Multimedia Mobile Broadcasting (CMMB) market.

The SMS1186 opens up new design and market opportunities for mobile phone makers, as well as manufacturers of cellular-connected devices such as netbooks and portable navigation devices. In terms of performance, the SMS1186 exhibits -100dBm sensitivity as well as extremely high noise immunity. In addition, it includes the secure "root-of-trust" hardware (known as UAM) that adheres to China Mobile's latest data security requirements. With the combination of performing the CMMB stream real-time descrambling on-chip, the SMS1186 is the most secure and cost effective solution for the CMMB MBBMS network, as the cryptographic operations and keys are not exposed.

Siano CTO Roy Oren said, "Siano's SMS1186 'buries' the entire conditional access flow inside one closed chipthe RF signal is received from the antenna on one end, and outputs a clear (non-encrypted) CMMB bit-stream on the other end. This is unlike competing approaches, which will let the data decryption (descrambling) run on the host CPU or the 3G baseband processor, which makes the system more prone to hacking.

Wei Wang, general manager of Siano China added, "With the SMS1186, end users that upgrade their terminals from GSM to TD-SCDMA will be able to keep their existing SIM cards by simply placing them in their new terminals, and immediately enjoy advanced TD-SCDMA and CMMB services."

The SMS1186 is identical in both package and size to its predecessor, the SMS1180, allowing CMMB device makers a smooth transition from free-to-air to Pay-TV CMMB devices, at practically zero design cycle. The SMS1186 mainly targets mobile phones and small data cards. Another flavor of the SMS1186 (part numbered SMS1188) provided in a slightly larger package, targets motherboards of netbooks, notebooks, and similar devices. The SMS1186 is already endorsed by several leading mobile phone makers, with plans to launch products in the next few months. The SMS1186 Evaluation Kit is available to select customers now and in high-volumes during the second half of August 2009.

CMMB is already deployed in 186 major cities in China, with plans to extend the coverage to 300 cities by the end of 2009.





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