Virtins DSO-2A20E

Description

The Virtins DSO-2A20E Package

*All prices exclude GST if applicable

1. Introduction The Virtins DSO-2A20E is one of the second-generation USB DSO (USB Oscilloscopes) designed and developed by Virtins Technology. This generation of USB DSOs features Virtins Technology’s unique hardware-based DSP algorithm which enhances the performance and functionality dramatically without adding extra hardware cost. When used in conjunction with Multi-Instrument^® software, the Virtins DSO-2A20E USB DSO converts any desktop, laptop, or tablet PC into a powerful oscilloscope, spectrum analyzer, multimeter, data logger, signal generator and so forth, all of which work simultaneously.
2. Package Contents1) VT DSO-2A20E unit with a hardware bundled Multi-Instrument Standard software license
   2) 2 × 100MHz Oscilloscope Probe P6100 with two switchable positions: × 1, × 10
   3) Signal Generator Test Lead (1 m)
   4) USB cable (1.5 m)
   5) CD (contains the copy-protected Multi-Instrument Software and VT DSO-2A20E driver)
   6) Individual voltage calibration data
3. VT DSO-2A20E Hardware Specifications

(Assuming white noise in the signal) Sampling FrequencyEffective Bit ResolutionSampling FrequencyEffective Bit Resolution≥ 100 MHz10 Bits≤ 25 MHz11 Bits≤ 6.25 MHz12 Bits≤ 1.563 MHz13 Bits≤ 391 kHz14 Bits≤ 97.7 kHz15 Bits≤ 24.4 kHz16 Bits≤ 6.10 kHz16 Bits≤ 1.526 kHz16 Bits

Bandwidthfs > 50 MHz80 MHzfs ≤ 50 MHz8 BitsNo Effective Bit Resolution Enhancement80 MHzEffective Bit Resolution Enhancement15 ~ 25 MHz16 BitsEffective Bit Resolution Enhancementabout 0.443 fsVoltage Measuring Range
(Full Scale)± 10 mV, ± 20 mV, ± 50 mV, ± 100 mV, ± 200 mV, ± 500 mV, ± 1 V, ± 2 V, ± 5 V, ± 10 V, ± 20 V, ± 50 VMax. Allowed Voltage± 100 V (DC + AC peak), derated above 100kHzDC Accuracy± 0.5%Coupling TypeAC / DCInput IsolationNo (Isolation can be achieved through a USB isolator)Terminal TypeReferenced Single-Ended, BNCInput Impedance1 MΩ , 15 pFZero CalibrationThrough hardware. Individually done at factory, user adjustableGain CalibrationThrough hardware. Individually done at factory, user adjustable

Virtins DSO-2A20E Package Specifications:

DDS Mode or Streaming Mode: 20 MHz, 10 MHz, 5 MHz, 2 MHz, 1 MHz, 500 kHz, 200 kHz, 100 kHz, 50 kHz, 20 kHz, 10 kHz, 5 kHz

Output Sampling Frequency Accuracy± 50 ppmBandwidthDC ~ 60 MHz

Output Signal Frequency0 ~ ½ of output sampling frequency

Rise Time (10% ~ 90%)< 5.8 nsDC Offset RangeFull output voltage range

DC Accuracy± 0.2% of full scale

Waveform:

DDS Mode*Sine, Rectangle (duty cycle adjustable), Triangle, Saw Tooth, White Noise, MLS (length = 2⁶³-1), User Configurable Waveform Library (Arbitrary), Musical Scale

Streaming Mode*Sine, Rectangle (duty cycle adjustable), Triangle, Saw Tooth,
White Noise, Pink Noise, MultiTones, MLS (127~16777215), DTMF, User Configurable Waveform Library (Arbitrary), Musical ScaleSignal Frequency Resolution

DDS Mode<0.05 Hz (fs = 200 MHz) <0.000001 Hz (fs = 5 kHz)

Streaming Mode  Virtually infinitesimal

Buffer Size

DDS Mode

Without interpolation: 1024 samples
With interpolation: 1024 × 65536 = 67108864 samples
(Note: interpolation is only available when fs <= 3.125 MHz)

Streaming Mode

Virtually unlimited

Frequency Sweep

DDS Mode

Supports linear sweep of all types of repetitive waveforms.
Sweep speed range: 1/32768 × fs² / 2³² ~ 65535 × fs² / 2³² (e.g. 284 Hz/s ~ 610 GHz/s when fs = 200 MHz)

Streaming Mode

Supports linear and logarithmic sweep of all types of repetitive waveforms.
Sweep speed range: unlimited

Amplitude Sweep

DDS Mode

Supports linear sweep of all types of waveforms.
Sweep speed range: 1/32768 × fs / (2³² –1) ~ 65535 × fs / (2³² –1) (e.g. 0.000142 %/s ~ 305171 %/s when fs = 200 MHz)

Streaming Mode

Supports linear and logarithmic sweep of all types of waveforms.
Sweep speed range: unlimited

Duration (Signal Length) Resolution

DDS Mode1/fs or 1µs, whichever is greater

Streaming Mode1/fsTHD≤ -60 dB (fs = 2 MHz, f = 1 kHz, from 2^nd to 20^th order, full-scale output)

SFDR≥ 65 dB (fs = 2 MHz, f = 1 kHz, full-scale output)

Zero Calibration Through software. Individually done at factory.

Gain Calibration Through software. Individually done at factory.

*The Virtins DSO-2A20E DDS mode consumes almost no computer CPU time while streaming mode consumes a lot. Maximum sampling frequency for continuous streaming is computer speed and software setting dependent and typically 10 MHz in Multi-Instrument. More advanced functions are provided via Multi-Instrument software under streaming mode. Please refer to Multi-Instrument software manual for details.

4. P6100 Oscilloscope Probe Hardware Specifications

Accessories include: a 12 cm snap-on rotating ground lead, a sprung hook, two marker rings, a probe compensation adjustment tool, two probe tip caps.

5. Examples

1) Measurements of PAL Composite Video Signals

2) Measurements of a 500Hz sine wave and a 1kHz square wave under ALT trigger mode

3) Mixed signal display. Channels A & B are analog input channels while Channel EXT is used as a digital input channel