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40 Gbit/s/GHz clock recovery and frequency multiplying AlGaAs/GaAs-HEMT-IC using injection-synchronised narrowband ring-VCOs and auxiliary PLLs

AlGaAs/GaAs-HEMT-IC zur 40 Gbit/s/GHz Taktrückgewinnung und Frequenzvervielfachung mit einem injektionssynchronisierten schmalbandingen Ring-VCO und einer Hilfs-PLL


Electronics Letters 35 (1999), No.14, pp.1151-1152 : Ill., Lit.
ISSN: 0013-5194
Journal Article
Fraunhofer IAF ()
GaAs electronics; GaAs-Elektronik; PLL; pseudomorphic HEMT; VCO

An IC technique for clock recovery and frequency multiplication was developed by combining a preprocessor, an injection-synchronised narrowband ring voltage controlled oscillator, and a phaselocked loop. A 4OGbit/s/GHz ICs realised using 0.2 mu m GaAs HEMTs. A multiplying factor as high as 64 was reached. The DC consumption is 900mW.