VT DSO-2A20 Manual Rev. 1.1
Virtins Technology
2 Specifications
2.1 VT DSO-2A20 Hardware Specifications
Oscilloscope Horizontal (Time) Axis
Real Time Sampling
Frequency (f
s
)
Single Analog Channel
200 MHz
Single or Dual Analog Channels with or without 1-bit Digital
Channel
100 MHz, 50 MHz, 25 MHz, 20 MHz, 10 MHz, 5 MHz,
4 MHz, 2 MHz, 1 MHz, 500 kHz, 400 kHz, 200 kHz,
100 kHz, 50 kHz, 40 kHz, 20 kHz, 10 kHz, 5 kHz, 4 kHz,
2 kHz, 1 kHz, 500 Hz, 400 Hz, 200 Hz, 100 Hz, 50 Hz,
40 Hz, 20 Hz, 10 Hz, 5 Hz, 4 Hz, 2 Hz, 1 Hz
Equivalent Sampling
Frequency
= [Real Time Sampling Frequency]
×
[Number of Frames
Persisted]. Maximum 40 GHz, for repetitive signals whose
maximum frequency is less than ¼ of the real time sampling
frequency. Not valid for the case of post-trigger.
Analog
Single Channel
40000 samples (8 bits)
20000 samples (16 bits)
Dual Channels
20000 samples / channel (8 bits, Non-ALT mode)
10000 samples / channel (16 bits, Non-ALT mode)
40000 samples / channel (8 bits, ALT mode)
20000 samples / channel (16 bits, ALT mode)
Normal
Frame Mode
Digital
20000 samples (1 bit)
Record Mode
(Streaming
Mode)
Limited only by hard disk space available and maximum file
size allowed by the operating system.
Maximum sampling frequency for continuous streaming is
computer speed and software setting dependent and typically
10 MHz (single channel, 8 bit) in Multi-Instrument.
Buffer
Size
Roll Mode
(Streaming
Mode for
Low
Frequency
Signals)
Limited only by the computer memory available.
Roll Mode is allowed when f
s
≤
1MHz and [Record Length]
≥
4
×
[Roll Width]. Maximum sampling frequency for
continuous streaming is computer speed and software setting
dependent.
Sweep Time
5 ns ~ 500 s (Non-Streaming Mode)
Sampling Frequency
Accuracy
±
50 ppm
Oscilloscope Vertical (Analog) Axes
Number of Channels
2 (i.e. Ch. A and Ch. B)
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