Characteristic Specifications Supplemental Information
APx515 B Series Audio Analyzer: Specifications 27
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
Spurious Content Typically <–100 dB
Output Equalization
Arbitrary 30-pole output filter
Source Resistance (Rs)
Balanced Selectable 100 ±1% or
600 ±1%.
Grounded, symmetrical
Unbalanced Selectable 50 ±1.5% or
600 ±1%.
Electronically floating, 0.3 Vpk max;
bnc shield to ground ≈10-17 || 22nF
Common Mode Test Same as Balanced selections
Max Output Current
Typically >50 mA peak, 50 mA dc
Reverse Overload Protection
Up to 30 W
Output Related Crosstalk
1
(–120 dB + 1 µV) to 20 kHz
ANALOG ANALYZER
Number of Channels
2, independently auto-ranging. Max ADC sample rate = 192 kS/s
Maximum Rated Input
125 Vpk, 120 Vdc any input to ground;
0.5 Vpk for unbalanced bnc shields
Input Impedance
Balanced 100 k || 230 pF, each side to gnd
Unbalanced 100 k || 230 pF to bnc shield Electronically floating, 0.5 Vpk max;
bnc shield to ground ≈500Ω || 22nF
Input Termination
Selectable 600 ±1%, 1.5 W max. Termination automatically opens in the
80 V range.
Input Coupling
Selectable DC or AC Typically <0.5 μA bias current with DC
coupling, typically <0.03 dB roll-off at 20
Hz with AC coupling
Input Ranges
250 mVrms to 80 Vrms, 10 dB steps Maximum ac signal is ≈88 Vac unbal,
115 Vac bal, in the 80V range
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