Name
Abstract | ||
|---|---|---|
A 40 Gb/s serial link interface is presented that includes four lanes of transceiver optimized for chip-to-chip communication while compensating for 20 dB of channel loss. Transmit equalization consists of a 2-tap feed-forward equalizer (FFE) while receive equalization includes a 2-tap FFE using a transversal filter, a 3-stage continuous-time linear equalizer with active feedback, and discrete-time equalizers consisting of a 17-tap decision feedback equalizer (DFE) and a 3-tap sampled FFE. The receiver uses quarter-rate double integrate-and-hold sampling. The clock and data recovery (CDR) unit uses a split-path CDR/DFE design which facilitates wider bandwidth and lower jitter simultaneously. A phase detection scheme that filters out edges affected by residual inter-symbol interference allows recovering a low-jitter clock from a partially-equalized eye. A fractional-N PLL is implemented for frequency offset tracking. Combining these techniques, the digital CDR recovers a stable 10 GHz clock from an eye containing 0.8 UI p-p input jitter and achieves 1-10 MHz of tracking bandwidth. The transceiver achieves horizontal and vertical eye openings of 0.27 UI and 120 mV, respectively, at BER = 10-9. The quad SerDes is realized in 28 nm CMOS technology. Amortizing common blocks, it occupies 0.81 mm2 per lane and achieves 23.2 mW/Gb/s power efficiency at 40 Gb/s. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/JSSC.2014.2374176 | J. Solid-State Circuits |
Keywords | Field | DocType |
transceivers,bandwidth,jitter,phase locked loops,intersymbol interference,receiver,synchronisation,ber,cmos technology,cmos integrated circuits,ui | Phase-locked loop,Transceiver,Equalization (audio),Computer science,Frequency offset,Electronic engineering,CMOS,Bandwidth (signal processing),Jitter,SerDes | Journal |
Volume | Issue | ISSN |
50 | 4 | 0018-9200 |
Citations | PageRank | References |
8 | 0.75 | 0 |
Authors | ||
14 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Reza Navid | 1 | 19 | 6.28 |
| E.-Hung Chen | 2 | 93 | 9.14 |
| Masum Hossain | 3 | 80 | 15.83 |
| Brian S. Leibowitz | 4 | 100 | 12.89 |
| Jihong Ren | 5 | 101 | 12.55 |
| Chuen-huei Adam Chou | 6 | 9 | 1.46 |
| Barry Daly | 7 | 27 | 6.64 |
| Marko Aleksic | 8 | 68 | 7.98 |
| Bruce Su | 9 | 10 | 1.84 |
| Simon Li | 10 | 27 | 6.27 |
| Makarand Shirasgaonkar | 11 | 9 | 1.46 |
| Fred Heaton | 12 | 30 | 6.57 |
| Jared Zerbe | 13 | 48 | 9.04 |
| John C. Eble | 14 | 19 | 5.12 |