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DAC2 Series Instruction Manual Rev C Page 50

udio Precision DAC2 - THD VS FREQ AT 0 dBFS

Balanced Outputs

DAC2 - EVEN AND ODD THD vs FREQUENCY.at27

ColorSweep Trace Line Style Thick Data Axis Comment Cursor1 Cursor2

1 1 Green Solid 4 Distortion.Ch.1 Harm Sum1 Ratio Left *-115.210 dB *-112.066 dB

1 2 Red Solid 4 Distortion.Ch.1 Harm Sum2 Ratio Right -115.165 dB -120.544 dB

GREEN = EVEN HARMONIC DISTORTION (2,4,6,8,10,12,14)

RED = ODD HARMONIC DISTORTION (3,5,7,9,11,13,15)

-130

-90

-125

-120

-115

-110

-105

-100

-95

-130

-90

-125

-120

-115

-110

-105

-100

-95

-115.21

-112.066

20 10k 50 100 200 500 1k 2k 5k

1.00318k 10k

dx=8.99682 kHz d

=+3.144 dB

Graph Plot 11 - EVEN AND ODD THD vs. FREQUENCY

This plot demonstrates that the harmonic distortion of the DAC2 is lower than the THD+N numbers

would suggest. This plot shows THD not THD+N. Even and odd harmonic distortions are plotted

separately. Note that odd harmonics are lower than the more "musical" even harmonics. Both

sets of harmonics are very low in amplitude (-112 dB to -120 dB), and should be entirely inaudible.

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Benchmark DAC1 HDR Manual de instrucciones Pagina 50