Digital Analyzer
Available only in the SYS-2720 and SYS-2722 configurations.
Digital Interface Signal Measurements
Input Sample Rate
Range 28 kHz–200 kHz for fully specified performance.
Usable from 16 kHz–216 kHz.
Accuracy
Int. Reference ±(0.0003% + 1 digit) [±3 PPM].
Ext. Reference ±(0.0001% + 1 digit) [±1 PPM].
Input Amplitude
Balanced (XLR) 0 Vpp–10.00 Vpp, ±(5% + 25 mV).
Unbalanced (BNC) 0 Vpp–2.5 Vpp, ±(5% + 6 mV).
Optical Displays voltage of internal logic signal (not
linearly related to optical input power).
Jitter Measurement
Range
25
0 UI–0.200 UI [0 ns–32 ns at 48k, 0 ns–8.0 ns at
192k, etc.].
Accuracy ±(10% + 1.0 ns), peak calibrated.
Detection “Pk” (for measurements per AES-3), or
“Avg” (for transfer function measurements).
Bandwidth <50 Hz–100 kHz,
120 Hz–100 kHz,
700 Hz–100 kHz, or
1.2 kHz–100 kHz.
Flatness
26
±1 dB, 100 Hz–50 kHz.
Residual Jitter
27
£600 ps with “700 Hz–100 kHz” bandwidth,
£1.0 ns with “50 Hz–100 kHz” bandwidth.
Jitter Spectrum Spurious products are typically 40 dB below jitter
signal or <0.0003 UI [–70 dBUI], whichever is
larger.
Common Mode Amplitude 0 Vpp–20.0 Vpp, ±(10% + 50 mV),
100 Hz–100 kHz.
Channel Status Bits Full implementation, English language decoded
(Professional or Consumer) hex formats,
independent in each channel.
User Bits Not displayed.
Validity Flag Displayed for each channel.
Parity Displayed for total signal (both channels
combined).
Output to Input Delay Measures propagation from the rear panel AES/
EBU Reference Output to the input.
Range –12.7 to +115.1 UI [–10% to +90% of frame] in
seconds, 60 ns resolution.
Chapter 6: Specifications Digital Analyzer
80 Getting Started with Your 2700 Series Instrument
25
The maximum measureable jitter increases to 1.000 UI for sine wave jitter signals below 1 kHz decreasing to
0.200 UI at or above 8 kHz.
26
System specification at 32, 44.1, 48, 88.2, 96, 176.4, and 192 ks/s using the “50 Hz to 100 kHz” analyzer
bandwidth selection. Flatness of the jitter generator will exhibit degradation at other sample rates.
27
Applies to electrical signal formats only. Specification subject to the following conditions: (1) all jitter generator
impairments must be turned off or disabled including the delay from reference output feature; (2) the digital
input signal must be ³ 1.5 Vpp (AES/EBU) or ³ 300 mVpp (SPDIF-EIAJ) and have a risetime £ 20 ns.
Jitter via the optical path may be considerably worse with embedded audio or dither enabled (limited by
Toslink® technology).
To Next Page
Loading...
Need help?
General
