Accuracy
Analog
7
±2 deg, 10 Hz to 5 kHz
±3 deg, 5 kHz to 20 kHz
±4 deg, 20 kHz to 50 kHz (with performance
option)
Digital ±1 deg, 10 Hz to 0.45´SR
Resolution 0.01 deg
Minimum Input (both channels)
Analog 1 mV (S/N >40 dB)
Digital
–60 dBFS (S/N >40 dB)
Residual Noise
(Amplitude Function only)
Analog
A-weighted £1.2 µV rms
Dolby 2K £2.0 µV rms
IEC 468 (CCIR) £6.0 µV Qpk
20 kHz LP £1.6 µV rms
Digital
A-weighted £–142 dBFS
Dolby 2K £–134 dBFS
IEC 468 (CCIR) £–127 dBFS
20 kHz LP
£–140 dBFS
THD+N Function
Fundamental Range 10 Hz to 0.47´SR
Measurement Range 0 to 100%
Accuracy ±0.3 dB, 10 Hz to 0.45´SR (no filters selected)
Residual THD+N
Analog £0.0009% [–101 dB] + 1.6 µV (with 20 kHz LP)
Digital –138 dBFS
Minimum Input for Counter Tuning
Analog 1 mV (S/N > 40 dB)
Digital –65 dBFS (S/N > 40 dB)
Notch Tuning Modes Counter Tuned, Sweep Track, Agen Track, Dgen
Track, or Fixed (set by direct entry)
Amplitude & THD+N Filters
(One filter from each of the following 3 groups may be enabled for 3 filters total)
Low Pass Group Fs/2 (no BW limiting)
20 kHz (6-pole elliptic, 0.1 dB ripple, 110 dB
stopband)
15 kHz (6-pole elliptic, 0.1 dB ripple, 110 dB
stopband)
User defined (6-pole max)
Chapter 6: Specifications
Getting Started with ATS-2 51
7
Both analyzer input channels must have same coupling (ac or dc) selection. Analog
accuracy is valid for any input signal amplitude ratio up to ±30 dB.
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