| 摘要 |
An attenuation circuit comprises a signal attenuation channel (22) which is designed to attenuate a signal by a first quantity, comprising an attenuator value and a calibration value; and a reference signal channel (24) which is designed to attenuate the signal by a second quantity which is practically equal to the calibration value. This structure makes it possible to enhance the precision of the attenuation. <IMAGE>
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