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Rev.01 Nov.2010

8/10

UM365XX

Figure 2

Figure 3

Additionally, some ceramic capacitors have a piezoelectric response. A piezoelectric device

generates voltage across its terminals due to mechanical stress, similar to the way a piezoelectric

accelerometer or microphone works. For a ceramic capacitor the stress can be induced by

vibrations in the system or thermal transients. The resulting voltages produced can cause

appreciable amounts of noise, especially when a ceramic capacitor is used for noise bypassing.