Characteristic Specifications Supplemental Information
18 APx525/526 B Series Audio Analyzers: Analog I/O Specifications
525
ANALOG GENERATOR
Number of Channels
2, independent amplitude control
Waveforms
Sine, sine split frequency, sine split
phase, sine+DC offset, continuously
swept-sine, square-wave, noise, IMD
signals, multi-tone, wave file playback
Option AG52 required for square waves
and DIM test signals
Sine Characteristics
Frequency Range (Fs) 0.1 Hz to 80.1 kHz Setting resolution is typically 45 Hz
Frequency Accuracy ±(0.0003% + 100 Hz)
Amplitude Range 0 to 21.21 Vrms [60.0 Vpp], bal;
0 to 10.61 Vrms [30.0 Vpp], unbal
Option AG52 increases max output to
26.66 Vrms bal, 13.33 Vrms unbal
Amplitude Accuracy, 1 kHz
+15C to +30C
±0.03 dB [±0.35%]
0C to +45C
±0.05 dB [±0.58%]
Flatness (1 kHz ref)
Fs = 5 Hz to 20 kHz ±0.008 dB Typically <0.003 dB
Fs = 20 kHz to 50 kHz ±0.030 dB
Fs = 50 kHz to 80 kHz ±0.10 dB
Residual THD+N
1,2
Fs = 20 Hz–20 kHz (–105 dB + 1.3 µV), 20 kHz BW;
(–100 dB + 1.8 µV), 40 kHz BW;
(–92 dB + 2.6 µV), 80 kHz BW;
(–85 dB + 6 µV), 250 kHz BW;
(–82 dB + 9 µV), 500 kHz BW
Typically <–110 dB at 1 kHz, 2.5 V with
option AG52; typically <–108 dB in stan-
dard units
Non-Harmonic Content Typically <–110 dB when Fs 75 kHz,
increasing to –55 dB at Fs =80 kHz
Phase offset range (split phase). –179.999 to +180.000 deg
DC Offset Range ±12.00 Vdc balanced;
±6.00 Vdc unbalanced
DC offset limits maximum ac signal
Residual DC Offset 0.25% of Vrms setting [0.09% of
Vpp setting] + 100 V
Square Characteristics (requires option AG52)
Frequency Range (Fq) 0.1 Hz to 30 kHz Same accuracy as sine wave
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