题目/Title:
A 40 Gb/s SerDes Transceiver Chip with Controller and PHY in a 65nm CMOS Technology
作者/Author:吕方旭,王建业,郑旭强,王自强,贺娅君,丁浩,刘勇聪,张春,王志华
Fangxu Lv,Jianye Wang,Xuqiang Zheng,Ziqiang Wang,Yajun He,Hao Ding,Yongcong Liu,Chun Zhang,Zhihua Wang
期刊/Journal:哈尔滨工业大学学报(新系列) Journal of Harbin Institute of Technology (New Series)
年份/Issue Date:2019.May
卷(期)及页码/Volume(No.)&pages:Vol.26, No.3, pp. 50-57
摘要/Abstract:
A 40 Gb/s full serializer and deserializer(SerDes) transceiver with controller and physical layer(PHY) is presented. The controller mainly contains protocol transmission, forward error correction and user layer build-in self-test(BIST). The physical coding sub-layer(PCS) provides the functions of 64/66 encoder/decoder, PHY BIST, and polarity control. In the physical medium attachment(PMA), both transmitter(TX) and receiver(RX) adopt quarter-rate architecture to relax the timing constraint and reduce power dissipation. The receiver utilizes the phase interpolator(PI) based clock and data recovery(CDR) with bang-bang phase detector(BBPD) to extract the synchronic clock for retiming and de-multiplexing. The multiple-MUX based 4-tap FFE and a two-stage cascade CTLE are employed to mitigate the inter-symbol interference(ISI). In addition, a proposed 4∶1 MUX is used to improve the output jitter performance and reduce the power consumption. Fabricated in a 65 nm CMOS technology, the full transceiver consumes 890 mW at 40 Gb/s and occupies 12 mm2. The measurement results show that this transceiver can achieve bit error rate(BER) < 10-12 after a 15.3 dB loss channel at 20 GHz.