Back to Search
Start Over
A 112 Gb/s PAM-4 56 Gb/s NRZ Reconfigurable Transmitter With Three-Tap FFE in 10-nm FinFET.
- Source :
- IEEE Journal of Solid-State Circuits; Jan2019, Vol. 54 Issue 1, p29-42, 14p
- Publication Year :
- 2019
-
Abstract
- This paper presents a reconfigurable 56 GS/s transmitter (TX) that operates up to 112 Gb/s with four-level pulse-amplitude modulation (PAM-4) and at 56 Gb/s with non-return-to-zero (NRZ) modulation scheme. Fabricated in the 10-nm FinFET technology, the TX incorporates a four-way interleaved quarter-rate architecture with a three-tap feed-forward equalizer (FFE). Key features of the TX include a 1-UI pulse-generator-based 4:1 serializer combined with a current-mode logic (CML) driver, low-power data-serializing paths, an output pad-network using a multi-segment $\pi $ -coil for bandwidth co-optimization together with ESD diodes, sub-80-fs resolution duty-cycle detector/corrector (DCD/DCC) and quadrature-error detector/corrector (QED/QEC) circuits, and a hybrid LC-phase-locked loop (PLL) with quadrature clock distribution circuits. The TX operating at 112 Gb/s in PAM-4 modulation consumes 232 mW from 1- and 1.5-V supplies, achieving an 2.07 pJ/b energy efficiency. The TX front end occupies an area of 0.0302 mm2. [ABSTRACT FROM AUTHOR]
- Subjects :
- FIELD-effect transistors
PULSE amplitude modulation
DIODES
Subjects
Details
- Language :
- English
- ISSN :
- 00189200
- Volume :
- 54
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Journal of Solid-State Circuits
- Publication Type :
- Academic Journal
- Accession number :
- 134230882
- Full Text :
- https://doi.org/10.1109/JSSC.2018.2874040