Benchmark DAC1 HDR Manual de Instruções descarregar pdf (Página 47)

DAC2 Series Instruction Manual Rev C Page 47

udio Precision DAC2 - THD+N vs AMPLITUDE AT 1 KHZ (w/20 kHz LPF unweighted)

Unbalanced Outputs, Relative to 0 dBFS, 0 dBFS = +7.2 dBu

DAC2 - Unbalanced THD+N_VS_AMPLITUDE.at27

ColorSweep Trace Line Style Thick Data Axis Comment

1 1 Green Solid 4 Anlr.THD+N Ampl Left

1 2 Red Solid 4 Anlr.THD+N Ampl Left

-120

-95

-119

-118

-117

-116

-115

-114

-113

-112

-111

-110

-109

-108

-107

-106

-105

-104

-103

-102

-101

-100

-99

-98

-97

-96

-14 -0-13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1

dBFS

Graph Plot 8 - Unbalanced THD+N versus Amplitude

This plot shows the THD+N performance of the unbalanced outputs. Note that the THD+N

performance of the unbalanced outputs approaches that of the balanced outputs. The DAC2

includes differential amplifiers that remove common-mode THD from the balanced outputs of the

SABRE converters. These differential amplifiers give the unbalanced outputs the ability to

approach the performance of the balanced outputs. Please note that the differential amplifiers also

eliminate common-mode distortion on the balanced outputs.

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Benchmark DAC1 HDR Manual de Instruções Página 47