Digital Signal Processing Reference
In-Depth Information
D.2.11
Measurement Features
•
Automatic measurements
Measurements are continuously updated. Cursors track current
measurement.
•
Voltage (analog channels only)
Peak-to-peak, maximum, minimum, average, amplitude, top, base,
overshoot, preshoot, RMS (DC)
•
Time
Frequency, period, + width, - width, and duty cycle on any channels
Rise time, fall time, X at max (time at max volts), X at min (time at
min volts), delay, and phase on analog channels only
•
Counter
Built-in 5 digit frequency counter on any channel. Counts up to
125 MHz
Threshold definition
Variable by percent and absolute value; 10%, 50%, 90% default for
time measurements
•
Cursors
Manually or automatically placed readout of Horizontal (X,.X, 1/.X)
and Vertical (Y,.Y)
Additionally digital or analog channels can be displayed as binary
or hex values
•
Waveform math
One function of 1-2, 1*2, FFT, differentiate, integrate
Source of FFT, differentiate, integrate: analog channels 1 or 2 (or 3
or 4 for 54624A), 1-2, 1+2, 1*2
D.2.12
FFT
•
Points
Fixed at 2048 points
•
Source of FFT
Analog channels 1 or 2 (or 3 or 4 on 54624A only), 1+2, 1-2, 1*2
•
Window
Rectangular, flattop, Hanning
•
Noise floor
-70 to -100 dB depending on averaging
•
Amplitude display
In dBV, dBm.
