Characteristic Specifications Supplemental Information
APx585/586 B Series Audio Analyzer: Analog I/O Specifications 37
585
Noise Characteristics
Shape White (<5 Hz to >80 kHz),
Pink (<10 Hz to >80 kHz),
IEC 60268-1 or BS EN 50332-1
Amplitude Range 0 to 40.72 Vpp, balanced;
0 to 20.36 Vpp, unbalanced
Amplitude calibration is approximate
IMD Test Signals
SMPTE & MOD
Lower Frequency (LF) 40 Hz to 1.00 kHz LF tone must be 1/6 • HF tone.
SMPTE Upper Frequency (HF) 2.00 kHz to 60.00 kHz
MOD Upper Frequency (HF) 240 Hz to 60.00 kHz
Mix Ratio (LF:HF) 10:1, 4:1 or 1:1
Amplitude Range 0 to 40.72 Vpp, balanced;
0 to 20.36 Vpp, unbalanced
Amplitude Accuracy ±0.06 dB [±0.70%]
Residual IMD
1,2,3
0.0025% [–92 dB], 4:1 mix ratio
DFD & CCIF
Difference Frequency (Fdiff) 80 Hz to 2.00 kHz F
mean
= (F1 + F2)/2.
Mean Frequency (Fmean) 250 Hz to 60.00 kHz F
diff
= |F2 - F1|
F
mean
must be 6 • F
diff
Amplitude Range 0 to 40.72 Vpp, balanced;
0 to 20.36 Vpp, unbalanced.
Amplitude Accuracy ±0.06 dB [±0.70%]
Residual IMD
1,2,3
0.0010% [–100 dB]
Multitone, Wave File Playback
Sample Rate Range (SR) 8 kS/s to 108 kS/s, and
175 kS/s to 192 kS/s
Operation from 109 kS/s to 175 kS/s is
possible, but with degraded flatness
Maximum File Size 32M Sample
Amplitude Range 0 to 45.2 Vpp, balanced;
0 to 22.6 Vpp, unbalanced.
".Wav" file must peak at digital full scale
to obtain selected amplitude.
Flatness (1 kHz ref)
SR = 175 kS/s to 192 kS/sec Typically <0.012 dB to 20 kHz
SR = 8 kS/s to 108 kS/s Typically <0.04 dB to 20 kHz;
max frequency limited to 0.45*SR
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