For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
A High-Speed PWM-Modulated Transceiver Network for Closed-Loop Channel Topology
IEICE TRANSACTIONS on Electronics
Publication Date: 2021/07/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
automotive communication, pulse-width modulation, high-speed transceiver, interface circuits, clock and data recovery,
Full Text: PDF>>
This paper proposes a pulse-width modulated (PWM) signaling to send clock and data over a pair of channels for in-vehicle network where a closed chain of point-to-point (P2P) interconnection between electronic control units (ECU) has been established. To improve detection speed and margin of proposed receiver, we also proposed a novel clock and data recovery (CDR) scheme with 0.5 unit-interval (UI) tuning range and a PWM generator utilizing 10 equally-spaced phases. The feasibility of proposed system has been proved by successfully detecting 1.25 Gb/s data delivered via 3 ECUs and inter-channels in 180 nm CMOS technology. Compared to previous study, the proposed system achieved better efficiency in terms of power, cost, and reliability.