Accuracy ±0.01% of reading or 0.0001% of Sample Rate,
whichever is greater.
Resolution 0.003% of reading or 0.0001% of Sample Rate,
whichever is greater.
Phase Measurements
Measurement Ranges ±180, –90/+270, or 0/+360 degrees.
Accuracy
28
±1 degree, 10 Hz to 45% of Sample Rate.
Resolution 0.01 degree.
Minimum Input –30 dBFS, both inputs.
SMPTE IMD Measurements
Test Signal Compatibility Any combination of 40 Hz–250 Hz (LF) and
(2 kHz to 45% of Sample Rate) (HF) tones, mixed
in any ratio from 1:1 to 5:1 (LF:HF).
IMD Measured Amplitude modulation products of the HF tone.
(–3 dB measurement bandwidth is
10 Hz–750 Hz.)
Measurement Range 0%–20%.
Accuracy ±0.5 dB.
Residual IMD £–130 dB at 0 dBFS, 60 + 7 kHz or 250 + 8 kHz
£–110 dB at –25 dBFS, 60 + 7 kHz or 250 +
8 kHz.
Embedded Audio, FFT Spectrum Analyzer
with “FFT” DSP program (48-bit processing)
Acquisition Length 800 samples–4 M samples in 15 steps.
Transform Length 256–32768 samples in binary steps.
Windows Blackman-Harris (4-term with –92 dB sidelobes),
(see Figures 56 and 57, Hann,
page 71) Flat-top,
Equiripple (AP design –160 dB sidelobes),
None,
None, move to bin center,
Hamming,
Gaussian,
Rife-Vincent 4-term,
Rife-Vincent 5-term.
Amplitude Accuracy ±0.001 dB, 20 Hz–20 kHz,
with Flat-top window.
Phase Accuracy
29
±0.05 degree, 10 Hz to 45% of Sample Rate.
Resolution 0.01 degree.
Averaging 1–4096 averages in binary steps. Averaging is
power-based (frequency domain), or synchronous
(time domain).
Digital Analyzer Chapter 6: Specifications
Getting Started with Your 2700 Series Instrument 83
28
Both DSP analyzer input channels must have the same coupling (ac or dc) selection. Accuracy is valid for any
input signal amplitude ratio up to ±30 dB.
29
Both DSP analyzer input channels must have same coupling (ac or dc) selection. Accuracy is valid for any
input signal amplitude ratio up to ±30 dB
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