Finesse 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 enough. An engineer must be able 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.
Finesse 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 the 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 automated test system design.
Important Note: The TSG6020 is a signal generator, function generator, and arbitrary waveform generator; it is not an oscilloscope. Its primary role is to generate controlled signals for stimulating and evaluating circuits.
Why is the TSG6020 a suitable choice for precise testing?
The TSG6020 combines a set of key features in a portable tool: two independent outputs, adjustable amplitude, arbitrary waveform generation, diverse modulation types, linear and logarithmic sweep, internal frequency counter, and a touch interface. The result is a device suitable for quick bench setups as well as repetitive and automated testing processes.
The DDS architecture provides stable digital control of signal parameters. The 200 MSa/s sampling rate allows the device to accurately reconstruct waveforms, while the 14-bit vertical resolution enables finer amplitude steps and smoother signal reproduction.
Two channels for simultaneous tests and comparative stimulation
Having two output channels makes the TSG6020 suitable for scenarios beyond generating a single signal. For example, one 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.
In automated tests, create two separate stimuli without needing two independent devices.
Output amplitude depends on load impedance and frequency. This is crucial in professional applications because the displayed and actual signal values differ between 50-ohm loads and high-impedance modes. The device's 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 on sensitive inputs and applying stronger signals for testing power circuits, amplifiers, and industrial inputs; amplitude selection should always consider the specifications of the circuit under test.
Generation of standard and custom waveforms
The TSG6020 supports common laboratory waveforms:
Sine
Square
Ramp
Pulse
Noise
DC
Arbitrary waveform
For routine tests, standard waveforms enable quick device setup. For example, sine waves are used for frequency response analysis, square waves for transient behavior evaluation, and pulses for timing tests or digital input stimulation.
When 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
The VeriPoint technology is designed for true point-by-point output of arbitrary waveforms. This feature is important when waveforms go beyond simple patterns and 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. Additionally, jitter below 200 ps helps maintain the timing position of waveform points; critical in timing tests, digital communications, and phase-sensitive circuit behavior analysis.
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 apply undesirable voltage to component inputs.
The 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
Evaluating switching circuit response times
Stimulating converters and amplifiers
Analyzing filter transient behavior
Assessing clock and trigger signals
Testing circuits sensitive to overshoot
Practically, faster and more controlled edges make the generated signal more closely resemble the intended stimulus, reducing the generator's contribution to test errors.
Modulation for telecommunications and RF testing
The 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 for receiver chain and filter testing, while FSK, ASK, and PSK are used to 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 the 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, while longer sweeps are for precise circuit response recording or synchronization with measurement equipment.
Internal seven-digit frequency counter
The TSG6020 is equipped with a 7-digit internal frequency counter capable of measuring frequency, period, and duty cycle of TTL signals. Measurement range is from 100 mHz to 100 MHz with an accuracy of ±51 ppm.
Having this counter means no separate tool is needed for initial input signal inspection or TTL source frequency control. This feature is useful for quick troubleshooting, controlling outputs of other generators, teaching frequency measurement, and analyzing digital signal duty cycles.
Signal quality at high frequencies
For higher frequency applications, the TSG6020 provides important output quality specifications:
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 in 30 to 60 MHz range
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 stay closer to the ideal shape, especially at higher frequencies.
Simple control with touch display and physical keys
The TSG6020 user interface is based on a 4.3-inch TFT-LCD touch screen complemented by physical keys. This combination simplifies quick parameter changes and offers flexibility for users preferring direct physical control.
The display shows settings, real-time waveform preview, and operational status. Simultaneous viewing of waveform, frequency, amplitude, and active mode reduces setup errors, especially when used in educational, workshop, or portable test environments.
Diverse operating modes for testing and automation
The TSG6020 supports the following operating modes:
Continuous output
Gated output
Modulation
Sweep
Continuous mode is for permanent signal generation in general tests. Gated mode allows control over output activation time, suitable for trigger-dependent stimuli or step tests. Modulation and sweep modes are used in telecommunications tests, filter analysis, and system response evaluation.
This variety makes the TSG6020 suitable for automated test systems where parameter repeatability, programmed stimulus changes, and reduced operator intervention are important.
Output protection and stability in long-term use
In laboratory environments, incorrect connections, ground potential differences, or continuous use can stress the generator output. The TSG6020 is designed for more stable operation in diverse scenarios with features like 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
The TSG6020 and TSG3020 share overall architecture, dual channels, 200 MSa/s sampling rate, 14-bit resolution, and core waveform generation capabilities. The main difference is the 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
Maximum 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 digits
7 digits
If your project operates up to 30 MHz, the TSG3020 can be a suitable choice. For RF tests, harmonics, filters, and circuits requiring higher frequency coverage, the TSG6020 with a 60 MHz ceiling offers a broader working range.
Practical applications of the TSG6020
Research and Development
During design and prototyping, engineers can apply various signals to circuits and study the effects of frequency, amplitude, phase, or modulation changes. The ability to save custom waveforms speeds up repeating complex test scenarios.
Electronics and Telecommunications Education
The touch interface, waveform preview, and access to standard waveforms make the TSG6020 useful for teaching concepts like sweep, modulation, filter response, duty cycle, and digital circuit behavior. Students can directly observe and analyze the effects of parameter changes on circuit inputs.
Filter and Amplifier Testing
Using linear or logarithmic sweep, desired frequency ranges can be covered and circuit responses recorded. Adjustable amplitude allows examining amplifier behavior at various input levels.
Digital Circuit Testing
Square and pulse waves with controlled rise times are suitable for stimulating digital inputs, timing analysis, trigger testing, and circuit response evaluation. TTL output and duty cycle support add flexibility for logic signal testing.
Communications and RF Testing
AM, FM, PM, FSK, ASK, and PSK modulation combined with frequency coverage up to 60 MHz enable testing communication system blocks and evaluating receiver, filter, and transmission path performance.
Automated Test Systems
Continuous, gated, modulation, and sweep modes, along with stored waveforms and precise parameter control, make the 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
The test cable 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 Finesse TSG6020
Is the TSG6020 an oscilloscope?
No. The TSG6020 is a function generator, signal generator, and arbitrary waveform generator used for signal generation. To view and measure circuit waveforms, an oscilloscope is required.
What is the maximum output frequency of the TSG6020?
The maximum output frequency of this model is 60 MHz. The TSG3020 model operates up to 30 MHz.
Can custom waveforms be stored in 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, 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. The 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.
Finesse TSG6020, combining dual-channel output, frequency range up to 60 MHz, 14-bit resolution, 200 MSa/s sampling rate, point-by-point arbitrary waveform generation, diverse modulations, and precise amplitude and timing control, is a versatile tool for electronics and telecommunications laboratories. It shows its greatest value when a precise, repeatable, and flexible stimulus source is needed for development, education, or automated testing.
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