ICEpower50ASX2

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DATASHEET Version 1.3<strong>ICEpower50ASX2</strong>2x50W or 1x170W ICEpower Amplifierwith integrated ICEpower SupplyPage 18 of 32Power vs. FrequencyDue to the compensating Zobel network in the output stage, the maximum allowable short-termoutput power is frequency-dependant. The short-term output power is defined as the maximum undistorted(THD+N < 1%) output power until thermal shutdown occurs. The maximum Full PowerBandwidth is 20 kHz. Above this frequency the Zobel protection circuit may briefly shutdown the amplifierto protect the Zobel network from damage.Note that this limitation will never cause any problems when the amplifier is fed a music signal at theinput, but the limit must be taken into consideration when the amplifier is tested under laboratoryconditions using sine waves or noise signals..Output ImpedanceThe output impedance is measured by feeding 1A RMS into the output of the amplifier and measuringthe voltage on the output. The voltage then corresponds to the output impedance. The output impedanceis measured directly on the terminals on the PCB.The figure below shows the output impedance from 100Hz – 20kHz for the SE-version.300m280m260m240m220m200m180mV160m140m120m100m80m60m40m20m100 200 500 1k 2k 5k 10k20kHzFigure 9: Measured voltage at output terminals while feeding 1A RMS into the output of the amplifier at PCB.
DATASHEET Version 1.3Page 19 of 32<strong>ICEpower50ASX2</strong>2x50W or 1x170W ICEpower Amplifierwith integrated ICEpower SupplyThe figure below shows the output impedance from 100Hz – 20kHz for the BTL-version.600m550m500m450m400m350mV300m250m200m150m100m50m100 200 500 1k 2k 5k 10k20kHzFigure 10: Measured voltage at output terminals while feeding 1Arms into the output of the amplifier at PCB
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ICEpower50ASX2

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