Characteristic Specifications Supplemental Information
APx ADIO Module for B Series: Specifications 49
ADIO
IMD Test Signals
SMPTE & MOD
Lower Frequency (LF) 40 Hz to 1.00 kHz LF tone must be 1/6 • HF tone.
SMPTE Upper Frequency (HF) 2 kHz to (0.499 • SR) or 60 kHz,
whichever is lower
MOD Upper Frequency (HF) 240 Hz to (0.499 • SR) or 60 kHz,
whichever is lower
Mix Ratio (LF:HF) 10:1, 4:1 or 1:1
Residual IMD
1,2
Typically < –140 dBFS
DFD
Difference Frequency (Fdiff) 80 Hz to 2.0 kHz F
diff
= |F2-F1|;
F
mean
must be 6 • Fdiff
Mean Frequency (Fmean) 2.5 kHz to (0.499 • SR – F
diff
/ 2) or
60 kHz, whichever is lower
F
mean
= (F1 + F2)/2
Residual IMD
1,2
Typically < –150 dBFS
Multitone, Wave File Playback
Sample Rate (SR) 8 kS/s to 216 kS/s
Maximum File Size 32 MSample
Flatness (1 kHz ref) Typically <0.001 dB to 0.499 • SR
Spurious Content Typically <–140 dBFS
DIGITAL INPUT RELATED:
Formats
Unbalanced SPDIF-EIAJ per IEC 60958, 5 Vpp Input typically 75 or 8.3 k
Balanced AES-EBU per AES3-2003, 10 Vpp Input typically 110 or 2.5 k
Optical Toslink® or equivalent
Sample Rate (SR) Range
Electrical 27 kS/s to 200 kS/s Usable over the extended range of
16 kS/s to 216 kS/s with degraded
waveform fidelity, accuracy, and jitter
Optical 27 kS/s to 108 kS/s
SR Measurement Accuracy ±0.0003% [±3 ppm]
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