Abstract
The Deep Underground Neutrino Experiment requires a line driver to drive at least 25-meter long twin-axial (twinax) cables. To compensate the high-frequency loss over the long cables and alleviate the de-emphasis of the low-frequency signal magnitude, a hybrid of current-mode transmitter equalization (TXEQ) and voltage-mode pre-emphasis is proposed. The TXEQ employs a finite-impulse response (FIR) filter to boost the high-frequency components while deemphasizing the low-frequency signal magnitude, thereby flattening the overall channel frequency response and reducing Inter-Symbol Interference (ISI). Voltage-mode pre-emphasis is proposed to further boost the high-frequency portion without degrading the signal magnitude. The main driver utilizes voltage-mode source-series-terminated (SST) output stages, which offers higher signal swing and better power efficiency than the conventional current-mode logic (CML) drivers. Designed in 65-nm CMOS, the proposed hybrid line driver operates at 1.28 Gbps and with 6.8 mW power consumption when driving a 25-meter long twinax cable.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
