Analog Analyzer
All 2700 series configurations except SYS-2720 contain an input module with two
independent auto-ranging input stages, each having its own level (rms) and frequency
meters; a phase meter; plus a single channel multi-function analyzer module providing
additional signal processing and gain stages. Standard analog analyzer functions
include amplitude and noise (both wideband and selective), THD+N, and crosstalk.
The SYS-2712 and SYS-2722 configurations add dual-channel A/D converters for
FFT and other special forms of analysis. Option “IMD” adds inter-modulation
distortion measurement capability. Option “W&F” adds wow & flutter measurement
capability.
Unless otherwise noted, all specifications assume dc coupling, rms detection, and
auto-ranging operation.
Analog Input Characteristics
Input Ranges 40 mV–160 V in 6.02 dB steps.
Maximum Rated Input 230 Vpk, 160 Vrms (dc to 20 kHz),
overload protected in all ranges.
Input Impedance
Balanced 200 kW / 95 pF (differential).
Unbalanced 100 kW / 185 pF.
Terminations Selectable 600 W or 300 W, each ±1%,
1 Watt [+30 dBm] maximum power.
CMRR
10
40 mV–2.5 V ranges ³80 dB, 10 Hz–20 kHz.
5 V and 10 V ranges ³65 dB, 10 Hz–20 kHz.
20 V–160 V ranges ³50 dB, 10 Hz–1 kHz.
Input Related Crosstalk
10 Hz–20 kHz £ –140 dB or 1 µV, whichever is greater.
20 kHz–100 kHz £ –126 dB or 2.5 µV, whichever is greater.
Level Meter Related
Measurement Range 5 mV–160 V for specified accuracy and flatness,
usable to <100 µV.
Resolution (full scale)
11
4/s and 8/s 1/40,000 [0.00022 dB].
16/s 1/20,000 [0.00043 dB].
32/s 1/10,000 [0.00087 dB].
64/s 1/5,000 [0.0017 dB].
128/s 1/2,500 [0.0035 dB].
Accuracy (1 kHz) ±0.5% [±0.05 dB].
Chapter 6: Specifications Analog Analyzer
58 Getting Started with Your 2700 Series Instrument
10
Not valid below 50 Hz with ac coupling.
11
Resolution within a given range is equal to its full scale value multiplied by the fraction indicated for the
selected reading rate. (Example: 40 mV input range reading resolution = 4 µV, using the 32/s reading rate).
Numerical displays using a dB unit are rounded to the nearest 0.001 dB.