Finersi TSG6020 Signal and Arbitrary Waveform Generator; Precise Signal Generation up to 60 MHz
In many research and development projects, laboratory training, and automated test systems, a simple signal source is not sufficient. Engineers need to accurately control amplitude, frequency, waveform, rise time, duty cycle, modulation, and circuit excitation conditions; all without distortion, overshoot, or thermal instability compromising the test results.
Finersi TSG6020 is a dual-channel function and arbitrary waveform generator that, utilizing DDS technology, a 200 MSa/s sampling rate, and 14-bit vertical resolution, enables generation of standard and custom signals up to 60 MHz. This device is designed for testing analog and digital circuits, frequency response analysis, telecommunications equipment testing, electronics education, and designing automated test systems.
Important Note: TSG6020 is a signal generator, function generator, and arbitrary waveform generator; not an oscilloscope. Its primary role is to generate controlled signals for circuit excitation and evaluation.
Why is TSG6020 a suitable choice for precise testing?
TSG6020 combines a set of key features in a portable instrument: two independent outputs, adjustable amplitude, arbitrary waveform generation, diverse modulations, linear and logarithmic sweep, internal frequency counter, and a touch user interface. The result is a device suitable for quick bench setups and also usable in repetitive and automated testing processes.
The DDS architecture allows digital and stable control of signal parameters. The 200 MSa/s sampling rate enables the device to reconstruct waveforms with appropriate detail, while the 14-bit vertical resolution allows finer amplitude steps and smoother signal reproduction.
Two channels for simultaneous tests and comparative excitations
Having two output channels makes TSG6020 suitable for scenarios beyond generating a single signal. For example, it can:
Generate input and reference signals simultaneously.
Apply two different frequencies or amplitudes to two parts of a circuit.
Compare responses of two paths, filters, or amplifier channels.
Use a main waveform alongside a modulated signal.
Create two separate stimuli in automated tests without needing two independent devices.
Output amplitude depends on load impedance and frequency. This is important in professional applications because the displayed and actual signal values differ between 50-ohm load and high-impedance mode. The device amplitude specifications are as follows:
Output Condition
Amplitude Range
High impedance, frequency below 10 MHz
2 mVpp to 20 Vpp
High impedance, frequency above 10 MHz
2 mVpp to 10 Vpp
50-ohm load, frequency below 10 MHz
1 mVpp to 10 Vpp
50-ohm load, frequency above 10 MHz
1 mVpp to 5 Vpp
This range allows working with very low amplitude signals for sensitive inputs and also applying stronger signals for testing power circuits, amplifiers, and industrial inputs; amplitude selection should always consider the specifications of the circuit under test.
Standard and custom waveform generation
TSG6020 supports common laboratory waveforms:
Sine
Square
Ramp
Pulse
Noise
DC
Arbitrary waveform
For routine tests, standard waveforms allow quick device setup. For example, sine waves are used for frequency response checks, square waves for transient behavior evaluation, and pulse waves for timing tests or digital input excitation.
In projects where standard waveforms are insufficient, custom waveforms can be defined and stored in the device memory. The non-volatile internal memory can hold up to 24 arbitrary waveforms, so frequently used waveforms remain available after power cycling without reconfiguration.
More accurate waveform reproduction with VeriPoint
VeriPoint technology is designed for true point-by-point output of arbitrary waveforms. This feature becomes important when the waveform goes beyond a simple pattern and its timing details must be precisely preserved.
The adjustable sampling rate in this section ranges from 1 µSa/s to 200 MSa/s. This range allows balancing record length, waveform detail, and signal change speed. Also, jitter below 200 ps helps maintain the timing position of waveform points; critical in timing tests, digital communications, and analyzing phase-sensitive circuits.
ZeroSurge for fast edges and controlled overshoot
In square, pulse, or ramp waves, edge quality is not limited to voltage change speed. Excessive overshoot can cause unwanted circuit excitation, measurement errors, or applying undesirable voltage to component inputs.
ZeroSurge technology aims to reduce overshoot in square, pulse, and ramp waveforms. According to specifications, overshoot is limited to 1%, and rise and fall times can reach 13.5 ns. This feature is valuable for applications such as:
Testing digital and logic inputs
Checking switching circuit response times
Exciting converters and amplifiers
Analyzing transient filter behavior
Evaluating clock and trigger signals
Testing circuits sensitive to overshoot
In practice, faster and more controlled edges make the generated signal more closely resemble the intended stimulus and reduce the generator's contribution to test errors.
Modulation for telecommunications and RF testing
TSG6020 is not just a basic waveform generator; it also offers a set of modulation methods:
AM: Amplitude Modulation
FM: Frequency Modulation
PM: Phase Modulation
FSK: Frequency Shift Keying
ASK: Amplitude Shift Keying
PSK: Phase Shift Keying
These capabilities allow engineers to produce signals closer to real communication system conditions. For example, AM and FM are used to test receiver chains and filters, while FSK, ASK, and PSK evaluate digital paths and data transmission methods.
Support for modulation alongside two output channels makes the device suitable for teaching communication principles, testing receiver and transmitter blocks, analyzing filter behavior, and simulating signals needed in research environments.
Linear and logarithmic sweep for frequency response analysis
In testing filters, amplifiers, matching networks, and control systems, manually changing frequency and recording circuit response is time-consuming and error-prone. The Sweep function in TSG6020 organizes this process.
The device supports two sweep modes:
Linear sweep for uniform frequency change
Logarithmic sweep for examining frequency ranges on a more suitable scale
Sweep time is adjustable from 1 ms to 500 s with 0.1% accuracy. Fast sweeps are for observing transient system responses, and longer sweeps for precise circuit response recording or synchronizing with measurement equipment.
Internal seven-digit frequency counter
TSG6020 includes a 7-digit internal frequency counter capable of measuring frequency, period, and duty cycle of TTL signals. Measurement range is 100 mHz to 100 MHz with an accuracy of ±51 ppm.
This counter eliminates the need for separate tools for initial signal inspection or controlling the frequency of a TTL source. It is useful for quick troubleshooting, verifying outputs of other generators, teaching frequency measurement, and checking digital signal duty cycles.
Signal quality at high frequencies
TSG6020 provides important output quality specifications for higher frequency applications:
Parameter
Specified Value
Sampling rate
200 MSa/s
Vertical resolution
14 bits
Maximum frequency (TSG6020 model)
60 MHz
Output amplitude at 50 ohms
1 mVpp to 10 Vpp, depending on frequency
Phase noise
Max −125 dBc/Hz at 10 MHz with 10 kHz offset
Harmonic distortion
Less than −40 dBc from 30 to 60 MHz
Jitter on arbitrary waveform output
Less than 200 ps
Rise and fall time
Max 13.5 ns per ZeroSurge specs
Overshoot
Max 1% per ZeroSurge specs
Lower phase noise means better phase component stability around the main frequency, important in RF tests and phase-sensitive systems. Lower harmonic distortion helps the output waveform, especially at higher frequencies, more closely resemble the ideal waveform.
Simple control with touch screen and physical buttons
The TSG6020 user interface is based on a 4.3-inch TFT-LCD touch screen complemented by physical buttons. This combination simplifies quick parameter changes and provides flexibility for users who prefer direct physical control.
The display shows settings, real-time waveform preview, and operational status. Simultaneous viewing of waveform, frequency, amplitude, and active mode reduces configuration errors; especially useful in educational, workshop, or portable test environments.
Diverse operating modes for testing and automation
TSG6020 supports the following modes:
Continuous output
Gated output
Modulation
Sweep
Continuous mode generates a constant signal for general tests. Gated mode controls output active time, suitable for trigger-dependent excitations or step tests. Modulation and Sweep modes are used for telecommunications tests, filter analysis, and system response evaluation.
This variety makes TSG6020 suitable for automated test systems where parameter repeatability, programmed stimulus changes, and reduced operator intervention are important.
Output protection and stability for long-term use
In laboratory environments, incorrect connections, ground potential differences, or continuous use can stress the generator output. TSG6020 is designed for more stable operation in diverse scenarios with features such as channel isolation, ground connection safety, and TTL-compatible sync output.
The device cooling system uses an aluminum heat sink and a quiet fan. Proper heat dissipation helps maintain stable performance during long-term use, and the quiet fan minimizes noise disturbance in educational or lab settings.
Differences between TSG6020 and TSG3020
TSG6020 and TSG3020 share overall architecture, dual channels, 200 MSa/s sampling rate, 14-bit resolution, and main waveform generation capabilities. The main difference is in maximum output frequency.
Feature
TSG3020
TSG6020
Device type
Dual-channel function and arbitrary waveform generator
Dual-channel function and arbitrary waveform generator
Technology
DDS
DDS
Sampling rate
200 MSa/s
200 MSa/s
Vertical resolution
14 bits
14 bits
Max output frequency
30 MHz
60 MHz
Standard waveforms
Sine, square, ramp, pulse, noise, DC
Sine, square, ramp, pulse, noise, DC
Arbitrary waveform
Yes
Yes
Modulation
AM, FM, PM, FSK, ASK, PSK
AM, FM, PM, FSK, ASK, PSK
Sweep
Linear and logarithmic
Linear and logarithmic
Internal counter
7-digit
7-digit
If your project operates up to 30 MHz, TSG3020 is a suitable choice. For RF tests, harmonics, filters, and circuits requiring higher frequency coverage, TSG6020 with a 60 MHz ceiling offers a wider working range.
Practical applications of TSG6020
Research and Development
During design and prototyping, engineers can apply various signals to circuits and examine effects of frequency, amplitude, phase, or modulation changes. The ability to store custom waveforms allows faster repetition of complex test scenarios.
Electronics and Telecommunications Education
The touch interface, waveform preview, and access to standard waveforms make TSG6020 useful for teaching concepts like sweep, modulation, filter response, duty cycle, and digital circuit behavior. Students can directly observe and analyze the effect of parameter changes on circuit inputs.
Filter and Amplifier Testing
Using linear or logarithmic sweep, the desired frequency range can be covered and circuit response recorded. Adjustable amplitude enables examining amplifier behavior at different input levels.
Digital Circuit Testing
Square and pulse waves with controlled rise time are suitable for digital input excitation, timing checks, trigger testing, and circuit response analysis. TTL output and duty cycle support add flexibility for logic signal testing.
Communications and RF Testing
Modulations AM, FM, PM, FSK, ASK, and PSK alongside frequency coverage up to 60 MHz allow examination of communication system blocks and evaluation of receivers, filters, and transmission paths.
Automated Test Systems
Continuous, gated, modulation, and sweep modes, along with stored waveforms and precise parameter control, make TSG6020 suitable for processes requiring repeatable and adjustable stimuli.
TSG6020 Package Contents
The TSG6020 package includes:
TSG6020 Signal Generator
Charger adapter with US or EU plug
Type-C charging cable
Data cable
Test cable
Alligator clips
User manual
Test cables and alligator clips enable quick connection to test circuits, and the data cable is intended for communication with equipment or computers when needed.
Frequently Asked Questions about Finersi TSG6020
Is TSG6020 an oscilloscope?
No. TSG6020 is a function generator, signal generator, and arbitrary waveform generator used for signal production. An oscilloscope is required to view and measure circuit waveforms.
What is the maximum output frequency of TSG6020?
The maximum output frequency of this model is 60 MHz. The TSG3020 model operates up to 30 MHz.
Can custom waveforms be stored on the device?
Yes. The internal non-volatile memory can store up to 24 arbitrary waveforms for quick recall.
What is the output amplitude range at 50 ohms load?
At 50 ohms load, output amplitude ranges from 1 mVpp to 10 Vpp below 10 MHz and from 1 mVpp to 5 Vpp above 10 MHz.
Is the device suitable for modulated signals?
Yes. TSG6020 supports AM, FM, PM, FSK, ASK, and PSK modulations and is suitable for education, communication circuit testing, and RF system evaluation within its operating range.
Finersi TSG6020, with dual-channel output, frequency bandwidth up to 60 MHz, 14-bit resolution, 200 MSa/s sampling rate, point-by-point arbitrary waveform, diverse modulations, and precise amplitude and timing control, is a versatile tool for electronics and telecommunications laboratories. It is most valuable when a precise, repeatable, and flexible stimulus source is needed for development, education, or automated testing.
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