Tektronix AWG2021 250 MHz Arbitrary Waveform Generator

Features: In AutoStep mode, the SETUP menu parameters cannot be modified, and the parameters between steps can be independently set (such as Step 1 amplitude of 2V, Step 2 amplitude of 3V).

2. Extended Editor (Option 09)

Editor Type Function Key Parameters

FFT editor for frequency domain editing, supporting fast Fourier transform/inverse transform window functions: 6 types including rectangle, Hanning, and Hamming; Filtering: low-pass/high pass/band-pass/bandstop

Convolutional waveform editor supports high-speed convolution/correlation operations with a maximum of 32000 data points, where the number of result points equals the sum of two waveform points

3. Key menu configuration

(1) SETUP menu (output parameter settings)

Parameter Category Configuration Options Value Range/Description

Clock source: Internal/External; Frequency (Internal) 10.00 Hz -250.0 MHz (4-digit accuracy)

Waveform Sequence (file selection) supports selecting waveform/sequence files WFM/. SEQ file, automatically loads corresponding parameters

CH1 Operation: Normal/AM/Add/External AM AM: CH1 × CH2; Add: CH1+CH2 (1/5 CH2 weight)

Filter Through/1/5/20/50 MHz suppresses high-frequency noise, such as 50 MHz filtering, which is suitable for high-frequency waveforms

Amplitude: Vertical axis full bias voltage of 0.05 V -5 V (50 Ω load, 1 mV step)

Offset Vertical axis offset voltage -2.5 V -+2.5 V (5 mV step size)

(2) MODE menu (operating mode)

Mode name function triggering conditions

Cont (continuous mode) continuously outputs waveforms without triggering, select and run

Triggered mode outputs a waveform every time it is triggered. External trigger (rising/falling edge) or MANUAL key is used

When the gate signal is valid, output waveform external signals (high/low level) or press and hold the MANUAL key

Burst mode: After triggering, output the specified number of waveform bursts 1-65535 times, triggered externally or with the MANUAL key

Waveform Advance switches to the next waveform every time it is triggered, ignoring the number of repetitions in the sequence file and cyclically outputting in order

Press AutoStep AST file step output, with independent parameters for each step and execution of one step per trigger, supporting 100 steps

Data Management and Transmission (LOAD/SAVE menu)

1. Storage medium and capacity

Storage Type Capacity Characteristics

Internal memory (RAM) up to 400 files lost due to power failure, used for temporary editing/output

NVRAM (non-volatile memory) 512KB, up to 400 files can be saved in case of power failure, suitable for long-term storage of critical files

3.5-inch floppy disk is compatible with MS-DOS format and supports directory hierarchy. It needs to be formatted first (UTILITY menu)

2. File loading/saving operations

Load file

Press the LOAD/SAVE key → select Device → select the target media (Disk/NVRam/GPIB).

Select Load → Select 'Load All' or individual file → Confirm loading into internal memory.

Save file

Press the LOAD/SAVE key → select Device → select the target medium.

Select Save → Select "Save All" or individual file → Optional ASCII format for external analysis.

3. GPIB direct transmission

Supported devices: Tek TDS series oscilloscope, HP 54600 series oscilloscope, etc. (refer to Table 3-19).

Operation steps:

Connect AWG2021 to the source device using GPIB cable.

Select Device → GPIB → Select Source Device (such as "Tek TDS CH1").

Select Load ->Automatically load waveform into internal memory (named as "TDSCH1. WFM").

Calibration and maintenance

1. Self calibration process

Trigger condition:

Regular: once every 90 days when the environment is stable (± 2 ℃); When the fluctuation is greater than 5 ℃, once every 30 days.

Manual: Press and hold the CAL key when turning on, or UTILITY → Calibration → Start.

Steps:

Disconnect all probes, the instrument displays "CALIBRATION...".

Internal calibration of ADC and reference source (approximately 2 minutes), complete display of "CAL PASS".

If 'CAL FAIL', check the ambient temperature (+18 ℃ -+28 ℃) and recalibrate.

2. Common troubleshooting

Possible causes and solutions for the fault phenomenon

No display/power adapter failure, fuse blown, replace with 12V/3A adapter; Check the 2A/250V fuse (Rear panel)

The waveform has no inflection point (such as the breakdown voltage test of the Zener transistor), the vertical sensitivity is insufficient, and the filter gear is improper. The vertical sensitivity is set to 1 μ A/div (leakage current measurement), and MAG X10 is turned on; Select a 50 MHz filter

GPIB transmission checksum error, loose cable, incorrect command format, replace GPIB cable (total length ≤ 20m); Confirm that the command termination symbol (EOI/LF) is consistent with the device

Appendix Key Content

Appendix A (Options and Accessories): Detailed description of hardware specifications and connection methods for options such as Option 02 (2-channel) and Option 03 (ECL output).

Appendix B (Performance Characteristics): Electrical characteristics (such as clock frequency accuracy ± 10 ppm), mechanical characteristics (weighing approximately 10kg), environmental characteristics (storage humidity 10% -90%).