← 返回 JSSC 论文列表JSSC 2020第8期RF & Wireless0.25µm SiGe:C BiCMOSPAM-4
A 25Gbaud PAM-4 Linear Burst-Mode Receiver With Analog Gain- and Offset Control
一款支持25Gbaud PAM-4调制的线性突发模式接收器，具有模拟增益和偏移控制功能
25Gbaud NRZ: -18.1dBm灵敏度, 3.5dBm过载; PAM-4: -11.4dBm灵敏度, 4.4dBm过载; 280mW功耗
突发模式接收器PAM-4自动增益控制线性接收器光通信
▸采用前馈与反馈结合的自动增益控制(AGC)和自动偏移控制(AOC)环路
▸支持快速突发切换的线性突发模式接收器(LBMRx)架构
▸在25Gbaud NRZ和PAM-4调制下均表现出色
Abstract
We present a burst-mode receiver (BMRx) whose
architecture and design is optimized for linear operation up
to 25Gbaud modulation rates. The linear burst-mode receiver
(LBMRx) consists of a fixed-gain transimpedance amplifier,
followed by a three-stage post-amplifier and a 50-ohm output
buffer. The gain of the post-amplifier stages and dc-offsets of
the datapath can be quickly adjusted from one burst to the next
through combined feedforward (providing rapid settling) and
feedback (providing accurate