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Rev. A - v00.0711
HMC6383 Evaluation Kit User Manual
19.Restoring earlier gain settings with second VGA gain now set at 10 dB, but reducing the
low pass filter bandwidth to 5 MHz (input signal is single channel WCDMA signal with
bandwidth of 3.84 MHz) is shown in Figure 30.
Figure 30. System View Configuration dialog showing restored gain settings and 5 MHz LPF bandwidth setting
20.The effect of reducing the filter bandwidth is shown in Figure 31. Clearly the noise in
the passband (5 MHz) has been amplified, and the signal centered at 10 MHz has been
attenuated by approximately 35 to 40 dB.
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