29 October 2009
Push-pull amplifiers for multiple catv infrastructure applications
RF Micro Devices has introduced 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.
RFMD says that each amplifier in its CGA/CGR product range leverages its proprietary HBT8D InGaP HBT process technology, combined with push-pull architecture, to deliver 'best in class' composite second order distortion performance.
The amplifiers are designed for ultra-linear amplification in current and next generation catv applications, including multiple dwelling unit amplifiers, low cost line extenders, and customer premises equipment.
According to RFMD, the CGA-1518Z matches the gain of competing 12Vdc push-pull amplifiers with lower multi-carrier distortion and a reduction of >1.5W in DC power consumption.
The CGA-7718Z offers higher gain and lower multi-carrier distortion performance than the CGA-1518Z and are suitable for applications that require 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 what RFMD says is the broadband industry's only 25dB gain surface mount device return path amplifier capable of ultra-linear 50dBmV rf output per channel performance from 5 to 65MHz, combined with low multi-carrier distortion, modulation error ratio and low DC power consumption.
The CGR-0218Z provides 5 to 210MHz bandwidth for ultra-linear return path applications requiring a SMD package, making it ready now for mid-split return path architectures and suitable for soon-to-be-implemented DOCSIS(R) 3.0 compliant 5 to 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.
Author
Chris Shaw
Supporting Information
Websites
http://www.rfmd.com
Companies
RF Micro Devices Inc
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