Keysight U7233A Testing Notes page 71

Keysight U7233A/U7233B DDR1 Compliance Test Application
Compliance Testing Methods of Implementation
6 Differential Signals AC Input
Parameters Tests
Probing for Differential Signals AC Input Parameters Tests / 72
VID(AC), AC Differential Input Voltage - Test Method of Implementation / 75
VIX(AC), AC Differential Input Cross Point Voltage -Test Method of Implementation / 78
This section provides the Methods of Implementation (MOIs) for Differential Signals AC Input tests
using an Keysight 54850A, 8000, 80000 or 90000A series Infiniium oscilloscope, recommended
InfiniiMax 116xA or 113xA probe amplifiers, E2677A differential solder-in probe head and the DDR1
Compliance Test Application.