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Amplifiers/Converters??

Ultra-linear, push-pull amps tailored for CATVs

Posted: 05 Nov 2009 ?? ?Print Version ?Bookmark and Share

Keywords:amplifier? CATV? broadband?

RF Micro Devices Inc. unveils a portfolio of push-pull amplifiers designed for multiple CATV infrastructure applications. The CGA/CGR product portfolio includes the CGA-1518Z and CGA-7718Z amplifiers for forward path, downstream applications and the CGR-0118Z and CGR-0218Z amplifiers for return path, upstream applications.

Each amplifier in RFMD's CGA/CGR product portfolio leverages the company's proprietary HBT8D InGaP HBT process technology, combined with "push-pull" architecture, to deliver best-in-class Composite Second Order distortion performance. RFMD's push-pull amplifiers are designed for ultralinear amplification in current and next generation CATV applications, including multiple dwelling unit (MDU) amplifiers, low-cost line extenders (LE) and customer premises equipment (CPE).

The CGA-1518Z matches the gain of competing +12Vdc push-pull amplifiers with lower multicarrier distortion and a reduction of more than 1.5W in DC power consumption. The CGA-7718Z offers higher gain and lower multicarrier distortion performance than the CGA-1518Z while consuming 1W less DC power than competing +12Vdc push-pull amplifiers. The CGA-1518Z and CGA-7718Z push-pull amplifiers are suitable for applications that require superior broadband amplification and must conserve DC power, such as CPE, MDUs and battery back-up cable and telephone networks carrying voice, data and video.

The CGR-0118Z offers the broadband industry's 25dB gain SMD return path amplifier capable of ultralinear +50dBmV RF output per channel performance from 5MHz to 65MHz combined with low multicarrier distortion, excellent modulation error ratio and low DC power consumption. The CGR-0218Z provides unmatched 5-210MHz bandwidth for ultra-linear return path applications requiring a SMD package, making it ready now for "mid-split" return path architectures and "future proof" for soon-to-be-implemented DOCSIS 3.0 compliant 5-85MHz return path networks. The CGR-0118Z and CGR-0218Z meet the performance requirements demanded by channel bonding capable return path networks, MDU class return amplifiers, and CPE cable modems.

Production quantities of the CGR-0118Z, CGR-0218Z, CGA-1518Z and CGA-7718Z are available immediately.

For application notes on amplifiers click here.





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