Title :
Jitter considerations in the design of a 10-Gb/s automatic gain control amplifier
Author :
Kucharski, Daniel ; Kornegay, Kevin T.
Author_Institution :
Cornell Broadband Commun. Res. Lab., Cornell Univ., Ithaca, NY
Abstract :
The effects of noise on random jitter in multistage broad-band amplifiers are analyzed. Limiting amplifiers are compared to automatic gain control (AGC) amplifiers with different gain profiles. Results are presented for a 10-Gb/s AGC amplifier implemented in an SiGe process with fT of 45 GHz. Active peaking techniques were used to achieve a maximum gain of 48 dB with 7.8 GHz of bandwidth. The amplifier demonstrates low jitter and less than 0.5 dB of peak-to-peak output amplitude variation over a 50-dB input amplitude range. It consumes 30 mW of power from a 3.3-V supply. The amplifier core occupies 0.1 mm2 and requires no external components
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; automatic gain control; integrated circuit noise; jitter; random noise; semiconductor device noise; semiconductor materials; wideband amplifiers; 10 Gbit/s; 3.3 V; 30 mW; 45 GHz; 48 dB; 7.8 GHz; AGC amplifier; SiGe; active peaking methods; automatic gain control amplifier; gain profile; multistage broad band amplifiers; noise effect; peak-to-peak output amplitude variation; random jitter; Bandwidth; Broadband amplifiers; Circuit noise; Clocks; Gain control; Jitter; Optical amplifiers; Optical attenuators; Optical fiber communication; Optical receivers; BiCMOS integrated circuits; broad-band amplifiers; gain control; optical communication; optical receivers; timing jitter;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.840731
