| 摘要 |
<p>A peak-detector is provided that is particularly suitable for measuring the peak value of an RSSI-signal in a digital communication device. The peak-detector comprises a peak value storage capacitor which is charged by a high current or by a low current. When the RSSI-signal is greater than the output voltage of the peak-detector, the storage capacitor is charged with the low current. When the RSSI-signal is substantially greater than the output voltage of the peak-detector, the storage capacitor is charged with the high current. Herewith, it is achieved that the peak value of the RSSI-signal is determined quickly, without any overshoot, i.e. the peak value is determined accurately.</p> |
