Title :
A 24 Gb/s Software Programmable Analog Multi-Tone Transmitter
Author :
Amirkhany, Amir ; Abbasfar, Aliazam ; Savoj, Jafar ; Jeeradit, Metha ; Garlepp, Bruno ; Kollipara, Ravi T. ; Stojanovic, Vladimir ; Horowitz, Mark
Author_Institution :
Rambus Inc., Los Altos
fDate :
4/1/2008 12:00:00 AM
Abstract :
A 24 Gb/s transmitter employs a digital linear equalizer and a 12 GS/s 8-bit digital-to-analog converter (DAC). Implemented in a 90 nm CMOS technology, the transmitter can be programmed to support a variety of communication modes including 4-channel and 2-channel analog multi-tone (AMT), as well as various baseband (BB) modes ranging from 2 to 256 PAM. Selection of the transmission mode is enabled through software programming of the appropriate tap coefficients into the equalizer. The transmitter dissipates 510 mW of power and is fabricated over an area of 0.8 mm. Experimental results confirm clear eye diagrams at 28 Gb/s.
Keywords :
CMOS integrated circuits; digital-analogue conversion; equalisers; field programmable analogue arrays; transmitters; CMOS technology; digital linear equalizer; digital-to-analog converter; size 90 nm; software programmable analog multitone transmitter; tap coefficients; various baseband modes; Backplanes; Baseband; CMOS technology; Decision feedback equalizers; Digital-analog conversion; Frequency response; Interference cancellation; Intersymbol interference; Reflection; Transmitters; Decision feedback equalizers; MIMO systems; equalizers; frequency division multiplexing; high-speed circuits;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2008.917520
