Specifications
Table 1: Signal acquisition sy stem characte ristics (cont.)
Characteristic
Description
All U nits:
Channel 1 - Channel 2
Channel 2 - Channel 1
Channel 1 + Channel 2
Channel 1 * Channel 2 FFT
Math Modes
4 c hannel units (TDS20X4C):
Channel 3 - Channel 4
Channel 4 - Channel 3
Channel 3 + Channel 4
Channel 3 * Channel 4
Voltage Measurement
Functions
Mean, Cyc RMS, P eak-to-Peak, Max, Min, RMS, CursorRMS
This is the difference between the measured DC gain and the nominal DC gain, divided by the nominal
DC gain and expressed as a percent.
±3%, 5 V/div through 10 mV/div
√ DC Gain Accuracy,
Sample or Average
Acquisition
±4%, 5 mV/div and 2 mV/div
DC Voltage
Measurement Accuracy,
Average Acquisition
Mode
Vertical position = 0: ±(3% of |reading| + 0.1 div + 1 mV)
Vertical position ≠ 0 and vertical scale = 2 mV/div to 200 mV/div: ±[3% of |reading + vertical position|
+ 1% of |vertical position| + 0. 2 div + 7 mV]
Vertical position ≠ 0 and vertical scale > 200 mV/div: ±[3% of |reading + vertical position| + 1% of
|vertical position| + 0.2 div + 175 mV]
Delta volts between any two averages of 16 waveforms acquired under the same setup and ambient
conditions.
Delta Volts Measurement
Accuracy, Average
Acquisition Mode
(3% of |reading| + 0.05 div)
Analog Bandwidth
Defined in Section 4.6 of IEEE std 1057. The difference between the upper and lower frequencies, at
which the amplitude response, as seen in the data record, is 0.707 (-3 dB) of the response seen in the
data record at the specified reference frequency. Specifies only the -3 dB point. It does not include
the in-band response.
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 3
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