User manual

Appendix A: Specifications
A-8
AM700 Audio Measurement Set User Manual
Table A-1: Analog Analyzer Specifications (Cont.)
Capabilities Description
THD + N Measurement
High Bandwidth Mode Residual THD + N
THD + N measured using the high bandwidth ADC
over an 80 kHz BW. The measurement is noise-
limited for amplitudes below 125 mV (–16 dBu).
Input > 125 mV (–16 dBu);
frequency v20 kHz to w72 Hz.
Typically v0.03% , maximum 0.05%.
High Resolution Mode Residual THD + N
Measurement bandwidth = 20 kHz
Input Amplitude > 62.5 mV ([–21.9 dBu) v0.015%, noise-limited for amplitudes t250 mV
([–10 dBu)
Input Amplitude Between 250 mV
([–10 dBu) and 16 V ([+26 dBu)
and frequencies between 20 Hz and 6.6 kHz
On +2, +8, +14, +20, and +26 dBu
Input Ranges
400 Hz to 6.6 kHz
100 Hz tot400 Hz
20 Hz tot100 Hz
At Full Scale At Full Scale –6 dB
v0.003%, v0.003%,
typ. v0.0015% typ. v0.002%
v0.005%, v0.003%
typ. v0.0025% typ. v0.0025%
v0.011% v0.005%,
typ.v0.003% at
20 Hz