III. Gm-C Filtering - Epublications - Université de Limoges

IV.4 Rauch Filter Performances: Measurements versus Simulations
IV.4.a Measurements Bench
To measure the test chip IC of the Rauch filter, the following setup has been used, as it
may be seen in Figure 174. Hybrids ensure the single-to-differential conversion of the signal.
Figure 174. Filter gain versus frequency
IV.4.b Measurements Results
The frequency response of the filter is measured at different central frequencies as
illustrated in Figure 175. The tuning range of the filter covers frequencies from 45 up to
240MHz.
Figure 175. Filter gain versus frequency
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