Texas Instruments DEM-DAI3793A Stereo Receiver User Manual


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5.4.4.2D/ASpectrum
0
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140
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Amplitude(dB)
AMPLITUDEvsFREQUENCY
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5
10 15 20
Frequency(kHz)
BPZ(ZeroData)Input
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140
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Amplitude(dB)
AMPLITUDEvsFREQUENCY
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10 15 20
Frequency(kHz)
-60dBInput
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140
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Amplitude(dB)
AMPLITUDEvsFREQUENCY
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10 15 20
Frequency(kHz)
0dBInput
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140
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Amplitude(dB)
AMPLITUDEvsFREQUENCY
WideRangeto130kHz
0 20 40 60 80 100 120
Frequency(kHz)
BPZ(ZeroData)Input
MeasurementsforDynamicCharacteristics
Measurementpath:01.LineOutputandHeadphoneOutput
csvfile:01_DAC_Line_Output_and_Headphone_Output.csv
NotethatanunweightedfilterandanAES17bandwidthof22Hzto20kHzshouldbesettoobtainprecise
spectrumresults.
Figure5-11.D/AAmplitudevsFrequencyFigure5-12.D/AAmplitudevsFrequency
Result:BPZ(ZeroData)InputResult:–60dBInput
Figure5-13.D/AAmplitudevsFrequencyFigure5-14.D/AAmplitudevsFrequency
Result:WideRangeto130kHz,BPZ(Zero
Result:0dBInput
Data)Input
SeeAppendixA:LineOutputandHeadphoneOutputforasignalflowblockdiagram.
EvaluationandMeasurements 60SBAU127–July2007
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