Keysight M8121A, User Manual

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14 Keysight M8121A Arbitrary Waveform Generator User Guide
1 Introduction
DAC Format Modes
Each channel internally uses two DACs (A & B). Each DAC usually
contributes to the signal 50% of a sample period.
The following three DAC format modes are available:
• NRZ (Non Return to Zero)
• DNRZ, (Double NRZ)
• Doublet
For more details on the DAC format modes, refer to the section “Dual-Core
DAC Architectures” in the Fundamentals of Arbitrary Waveform Generation
Reference Guide (Manual Part No. M8190-91050).
Figure 1 DAC Format Modes
NRZ: DAC A sends value for
whole sample period DNRZ: DAC A and B send same value Doublet: DAC A sends +Value,
DAC-B sends –Value