Interface Signal Impairments
Variable Rise/Fall Time 12 ns–100 ns, ±(10% + 2 ns).
Cable Simulation Approximates the signal degradation of
40 m–100 m of typical digital audio cable.
Induced Jitter (sine wave)
Frequency Range
22
2 Hz–200 kHz.
Amplitude Range
21
0 UI–0.127 UI in 0.0005 UI steps,
0.13 UI–1.27 UI in 0.005 UI steps,
1.3 UI–12.7 UI in 0.05 UI steps.
Accuracy ±(10% + 2.0 ns), peak calibrated.
Flatness
23
±1 dB, 100 Hz–50 kHz.
Residual Jitter
24
£600 ps (700 Hz–100 kHz an a lyzer band width),
£1.0 ns (50 Hz–100 kHz an a lyzer band width).
Spu ri ous Jit ter Prod ucts Typically 30 dB be low jit ter sig nal or 0.001 UI,
which ever is larger.
Nor mal Mode Noise
Wave form Pseudo-random pulse train.
Bal anced (XLR) 0 Vpp–2.55 Vpp in 10 mV steps, ±(10% +
100 mV).
Un bal anced (BNC) 0 mVpp–635 mVpp in 2.5 mV steps, ±(10% +
25 mV).
Com mon Mode Sig nal Ap plies to Bal anced (XLR) out puts only.
Fre quency Range 20 Hz–100 kHz.
Am pli tude Range 0 Vpp–20.4 Vpp in 80 mV steps,
±(10% + 160 mV).
De lay from rear panel –64 UI to +63.5 UI in 0.5 UI steps.
Ref er ence Output
Embedded Signal Generation
En coding is selectable 8–24 bit Lin ear, µ-Law, or A-Law
Sine Family Common Characteristics
Waveforms Sine, Sine Burst (rectangular envelope), Variable
Phase Sine (two sine waves of same frequency
but settable phase), Stereo Sine (independent
frequency and amplitude in each channel), Dual
Sine (sum of two sine waves with variable ratio),
Sine + Offset, and Shaped Sine Burst (raised
cosine envelope).
Frequency Range 10 Hz to 47% of Sample Rate
[22.56 kHz at 48 ks/s].
Frequency Resolution Sample Rate ¸ 2
23
[0.006 Hz at 48 ks/s].
Flatness ±0.001 dB.
Chapter 6: Specifications Digital Signal Generator
76 Getting Started with Your 2700 Series Instrument
22
Combinations of jitter amplitude and frequency must not result in greater than 50% reduction in transmitted bit
width.
23
System specification at 32, 44.1, 48, 88.2, 96, 176.4, and 192 ks/s. Flatness of the jitter generator will exhibit
degradation at other sample rates.
24
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).
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