The FNIRSI TSG6020 is a benchtop, high-precision function and arbitrary waveform generator that leverages Direct Digital Synthesis (DDS) technology to deliver precise electrical signals. Featuring a generous 60MHz maximum output frequency, a fast 200MS/s sampling rate, and a crisp 14-bit vertical resolution, this dual-channel instrument outputs clean waveforms with minimal jitter. Its compact form factor, paired with a intuitive 4.3-inch touch display, makes it a powerful asset for RF circuit testing, education, filter characterization, and medical device development.

Specifications

• Model: TSG6020
• Channels: 2 Independent Channels (CH1 and CH2)
• Maximum Output Frequency: 60MHz (Sine wave maximum)
• Sampling Rate: 200MS/s
• Vertical Resolution: 14 Bits
• Frequency Resolution: Ultra-fine 1uHz
• Standard Waveforms: Sine, Square, Triangle/Ramp, Pulse, Noise, and DC
• Arbitrary Waveforms: True Point-by-Point mode up to 10MHz (4kpts memory length, 24 non-volatile user slots)
• Rise/Fall Time (Square/Pulse): ≤ 13.5ns typical
• Overshoot: ≤ 1% (Optimized by ZeroSurge technology)
• Integrated Frequency Counter: 7-Digit hardware counter, range 100mHz - 100MHz
• Control UI: 4.3-inch TFT-LCD touch screen with complementary physical entry buttons
• Power Input: Type-C (5V / 2A)

Core Structural Technologies

• ZeroSurge Technology: Traditional DDS generators often suffer from severe voltage spikes (overshoot) when transitioning fast rising or falling edges. The TSG6020 incorporates active ZeroSurge conditioning, restricting edge overshoot to ≤ 1%, protecting sensitive microelectronics under test from transient over-voltages.
• VeriPoint Arbitrary Output: Standard generators skip points at high frequencies to maintain clock speed, distorting custom shapes. VeriPoint mode enables a true point-by-point arbitrary memory clock, preserving fine graphical transitions and maintaining ultra-low jitter (<200ps>
• Dynamic Amplitude Matching: Output scaling switches dynamically based on target frequency and systemic terminal load (50Ohm or High Impedance):
  • <10MHz>pp to 10Vpp (50Ohm) | up to 20Vpp (High-Z)
  • >10MHz: 1mVpp to 50Vpp (50Ohm) | up to 10Vpp (High-Z)

Waveform Optimization Breakdown

The TSG6020 handles different waveform configurations with unique boundaries:

• Sine Wave: Entire operational footprint (1uHz to 60MHz).
• Square Wave: Limited to 24MHz to preserve structural edge transitions.
• Pulse Wave: Fully adjustable pulse width (17ns) and variable edge timing (12ns) up to 24MHz.
• Ramp/Triangle: Selectable symmetry from 0.0% to 100.0%, maximizing at 20MHz.
• Gaussian Noise: Outputs a true random 60MHz white-noise distribution spectrum for system testing.

Modulation & Sweep Modalities

The instrument provides broad capabilities for communication, RF simulations, and structural sweeps:

• Analog Modulation Types: AM, FM, and PM. Compatible with internal or external carriers across audio and medium-wave envelopes (2mHz - 200kHz).
• Digital Modulation Types: ASK, FSK, and PSK, supporting standard communication bus testing.
• Frequency Sweep: Operates in both Linear and Logarithmic layouts. The sweep time is configurable from 1ms up to 500s (± 0.1%), which is highly effective for charting the cutoff slopes of analog filters.
• Output Gating: Enables burst and gated output triggers based on specific logic events or software commands.

Operating Best Practices

• Coordinate the Load Impedance Switch: Always ensure the generator's internal channel settings match your physical circuit configuration. If the generator is configured for 50Ohm output but you connect it to an open circuit or high-impedance oscilloscope channel, the actual output voltage will double on screen. Ensure you select "High Impedance" or "50Ohm" in the touchscreen settings to maintain calibration alignment.
• Leverage the Real-Time Preview: The 4.3-inch display updates the mathematical output profile instantly as you key in values. Before outputting high voltages to a live board, utilize the preview screen to check the safety offsets, peak-to-peak calculations, and modulation depths.
• BNC Ground Isolation Awareness: The outer shells of the channel outputs are isolated up to 42Vpk relative to earth ground. However, the grounds for CH1 and CH2 share an internal bus. Avoid connecting the ground shield of CH1 to a high potential and CH2 to a low potential on the same project board to prevent a ground short-circuit.