Characteristic Specifications Supplemental Information
APx525/526 B Series Audio Analyzers: Analog I/O Specifications 19
525
Amplitude Range 0 to 60.0 Vpp, balanced;
0 to 30.0 Vpp, unbalanced
Amplitude Accuracy ±0.10 dB [±1.2%]
Risetime 2.0 sec Typically <1.7 sec when Rs 200
Even Harmonic Content
Fq = 10 Hz to 5 kHz –100 dB to at least 80 kHz
Fq = 5 kHz to 20 kHz –90 dB to at least 80 kHz
Non-Harmonic Content Typically <–110 dB
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 60.0 Vpp, balanced;
0 to 30.0 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 60.0 Vpp, balanced;
0 to 30.0 Vpp, unbalanced.
Option AG52 increases maximum to
75.4 Vpp bal, 37.7 Vpp unbal.
Amplitude Accuracy ±0.06 dB [±0.70%]
Residual IMD
1,2,3
–95 dB [0.0018%], 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 60.0 Vpp, balanced;
0 to 30.0 Vpp, unbalanced.
Option AG52 increases maximum to
75.4 Vpp bal, 37.7 Vpp unbal.
Amplitude Accuracy ±0.06 dB [±0.70%]
Residual IMD
1,2,3
–106 dB [0.0005%]
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