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CATV Amplifiers Target 1-GHz Networks

Nov. 12, 2007

A FAMILY OF GALLIUM-ARSENIDE (GaAs) cable-television (CATV) hybrid amplifiers recently welcomed the addition of two multi-chip modules (MCMs). These modules boast feature bandwidth of 40 to 1000 MHz for high output capacity. The maximum noise figure for both modules is 6.5 dB. With 22.5 dB gain, the MC-7832- HA push-pull amplifier is designed to serve as an input stage for line amplifiers, nodes, splitters, trunk amplifiers, and bridgers in bandwidth- hungry CATV networks. It boasts maximum composite-triple-beat (CTB) and composite-secondorder (CSO) performance levels of -57 dBc and maximum X-modulation of -50 dBc. Its sibling, the MC-7891, delivers 19 dB of gain. Maximum CTB is -63 dBc while maximum CSO is -65 dBc. The amplifier's maximum Xmodulation is -60 dBc. This module is well suited for the delivery of digital programming. Both modules are housed in industry-standard 7-pin packages. P&A: stock. See associated figure

California Eastern Laboratories, 4590 Patrick Henry Dr., Santa Clara, CA 95054-1817; (408) 919-2500, FAX: (408) 988-0279, Internet: www.cel.com.

About the Author

Nancy Friedrich | RF Product Marketing Manager for Aerospace Defense, Keysight Technologies

Nancy Friedrich is RF Product Marketing Manager for Aerospace Defense at Keysight Technologies. Nancy Friedrich started a career in engineering media about two decades ago with a stint editing copy and writing news for Electronic Design. A few years later, she began writing full time as technology editor at Wireless Systems Design. In 2005, Nancy was named editor-in-chief of Microwaves & RF, a position she held (along with other positions as group content head) until 2018. Nancy then moved to a position at UBM, where she was editor-in-chief of Design News and content director for tradeshows including DesignCon, ESC, and the Smart Manufacturing shows.