An 18-Gb/s/pin Single-Ended PAM-4 Transmitter for Memory Interfaces with Adaptive Impedance Matching and Output Level Compensation

An 18-Gb/s/pin Single-Ended PAM-4 Transmitter for Memory Interfaces with Adaptive Impedance Matching and Output Level Compensation

This paper presents a method for preventing output level distortion while matching the channel impedance in the single-ended PAM-4 transmitter for memory interfaces. ZQ codes for all four output signal levels were obtained through ZQ calibration and saved in the ZQ code table. The ZQ code generator...

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Bibliographic Details
Main Authors: Changho Hyun, Yong-Un Jeong, Suhwan Kim, Joo-Hyung Chae
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Electronics
Subjects:
single-ended signaling
transmitter
four-level pulse amplitude modulation (PAM-4)
impedance matching
level separation mismatch ratio (RLM)
memory interface
Online Access:https://www.mdpi.com/2079-9292/10/15/1768

Internet

https://www.mdpi.com/2079-9292/10/15/1768

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