A 28-Gb/s/pin PAM-4 Single-Ended Transmitter with High-Linearity and Impedance-Matched Driver and 3-Point ZQ Calibration for Memory Interfaces | Semantic Scholar
VSWR and impedance, Part 5: Making a match
Impedance Matching of Audio Components
DAP Audio FLA07 - XLR 3 Pin Female to 1/4'' Jack Interconnect impedance- matching | eBay
Back to Basics: Impedance Matching (Part 3) | Electronic Design