Characteristic Specifications Supplemental Information
34 APx555 B Series Audio Analyzer: Analog I/O Specifications
555
Amplitude Range
1
10 Hz to 80 kHz 0-26.66 Vrms [75.4 Vpp] bal;
0-13.33 Vrms [37.7 Vpp] unbal & CMT
Will drive 600 balanced load to at
least +30.0 dBm when Rs = 40
0.001 Hz to 10 Hz 0-21.22 Vrms [60.0 Vpp] bal;
0-10.61 Vrms [30.0 Vpp] unbal & CMT
Amplitude Accuracy, 1 kHz
+15°C to +30°C
±0.030 dB [±0.35%]
0°C to +45°C
±0.040 dB [±0.46%]
Amplitude Setting Resolution Typically <0.001 dB or 0.05 µVrms
Flatness (1 kHz ref)
5 Hz to 20 kHz ±0.008 dB Typically <0.1 dB below 5 Hz
20 kHz to 50 kHz ±0.030 dB
50 kHz to 80 kHz ±0.10 dB
Residual THD+N
2, 3, 4
10 Hz to 20 kHz, 22 kHz BW (–105 dB + 1.0 µV)
5 Hz to 20 kHz, 80 kHz BW (–95 dB + 2.0 µV)
DAC Related Spurious Content
5 Hz to 20 kHz Typically <–100 dB to 500 kHz
20 kHz to 50 kHz Typically <–85 dB at (384 kHz ± 2 • Fs)
50 kHz to 76 kHz Typically <–70 dB at (384 kHz ± 2 • Fs)
76 kHz to 80 kHz Typically <–55 dB at (192 kHz – Fs)
Phase Offset Range –179.999 to +180.000 deg
Sine Burst
Generation Technique Zero-crossing synchronized analog
switching between Low/High states
Frequency Range 10 Hz to 80 kHz, Dual Sine
10 Hz to 100 kHz, HPSG
Frequency Accuracy same as selected sine generator
Amplitude Range
1
0–75.4 Vpp bal
0–37.7 Vpp unbal
Amplitude Accuracy (1 kHz) ±0.05 dB [0.58%]
Low/High Ratio Range 0 to –80 dB, and zero
Ratio Accuracy (1 kHz) ±0.15 dB, 0 to –60 dB Unspecified below –60 dB.
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