User Manual

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Figure 8. High Frequency AWG spectral characteristics (left), 1dB detail (right) []
The 3dB bandwidth is 40MHz+, the 0.5dB bandwidth is 20MHz+, the ±0.1dB flatness band is 14MHz+.
The 3dB bandwidth is close to the theoretical Nyquist limit for a 100MHz sampling system. This has the advantage of very sharp edges
(see the rectangular signal in Fig. 9), but also generates alias effects. The ZmodADC generated signals were recorded with a high BW
scope in Fig. 9, and the right side of Fig. 10 and Fig. 11. In Fig. 11, the sinus frequency is 10MHz, and the 100MHz samples are clearly
visible. In the left side of Fig. 10 and Fig. 11, the same scope was used, but with 20MHz BW limitation. The rectangular signal edges are
slower and the sine wave samples are not visible.
The typical Slew Rate of the AWG can be read in Fig. 9:
SR = = 183 V / μS (18)
2.05 V
11.2 ns