Tektronix AFG1022 Technical Reference

Arbitrary function generator specifications and performance verification

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Page 1 AFG1000 Series Arbitrary Function Generator Specifications and Performance Verification Technical Reference www.tektronix.com *P077113202* 077-1132-02...
Page 2 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.
Page 3 Tektronix, shipping charges prepaid, and with a copy of customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
Page 5: Table Of Contents
Table of contents Important safety information ........................iii Preface ................................1 Finding other information ........................2 Manual conventions ..........................2 Specifications ..............................3 Electrical specifications ........................... 3 Input and output specifications ......................9 General specifications ..........................10 Performance tests ............................12 Test record ............................
Page 6 Table of contents List of figures Figure 1: AFG1000 Series dimensions ......................11 Figure 2: Frequency/Period tests........................20 Figure 3: 50 Ω terminator accuracy ......................21 Figure 4: Amplitude tests ..........................22 Figure 5: 50 Ω terminator accuracy ......................23 Figure 6: DC offset tests ..........................23 Figure 7: Counter tests ..........................24 Figure 8: AC flatness tests for 1 kHz ......................26 Figure 9: AC flatness tests for the frequency greater than 100 kHz ............26...
Page 7: Important Safety Information
Important safety information This manual contains information and warnings that must be followed by the user for safe operation and to keep the product in a safe condition. To safely perform service on this product, additional information is provided at the end of this section.
Page 8 Important safety information Power disconnect. The power cord disconnects the product from the power source. See instructions for the location. Do not position the equipment so that it is difficult to operate the power cord; it must remain accessible to the user at all times to allow for quick disconnection if needed.
Page 9 Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries. Use care when lifting and carrying the product. Use only the Tektronix rackmount hardware specified for this product. Service safety summary The Service safety summary section contains additional information required to safely perform service on the product.
Page 10 Important safety information Terms in this manual These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property. Symbols and terms on the product These terms may appear on the product: DANGER indicates an injury hazard immediately accessible...
Page 11: Preface
Series Arbitrary Function Generator to the module level. Unless noted otherwise, the term “AFG3000 Series” refers to the models in the following table. Table 1: Supported products AFG1022 AFG1062 To prevent personal injury or damage to the arbitrary function generator, consider the following before attempting service: The procedures in this manual should be performed only by a qualified service person.
Page 12: Finding Other Information
Important safety information Finding other information This manual focuses on the performance verification of the arbitrary function generator. See the following list for other documents supporting the instrument. All documents except the Online Help are on the AFG1000 Series Arbitrary Function Generator Documentation CD-ROM that ship with instrument.
Page 13: Specifications
Description Standard Sine, Square, Ramp, Pulse, Noise Numbers of channel Arbitrary waveform Exponential rise, Exponential fall, Sin(x)/x, Staircase, DC, etc. 45 built-in waveforms, User Defined Waveform length AFG1022 2 to 8,192 AFG1062 2 to 1M Sampling rate AFG1022 125 MS/s...
Page 14: Table 4: Frequency/Period
Specifications Table 4: Frequency/Period Characteristic Description PV ref page Frequency range Sine AFG1022 Range 1 μHz to 25 MHz Sine wave in burst mode 2 mHz to 25 MHz AFG1062 Range 1 μHz to 60 MHz Sine wave in burst mode...
Page 15: Table 6: Amplitude
Specifications Table 6: Amplitude Characteristic Description PV ref page Range AFG1022 1 mVp-p to 10 Vp-p (into 50 Ω load) 2 mVp-p to 20 Vp-p (into Open circuit or High-Z) AFG1062 ≤ 25 MHz: 1 mV to 10 V 25 MHz: 1 mV to 5 V >...
Page 16: Table 9: Output Characteristics
Flatness (at 1.0 V amplitude, relative to 1 kHz) (See page 26, AC flatness test.) AFG1022 < 10 MHz: ±0.4 dB 10 MHz ≤ frq ≤ 25 MHz: ±0.7 dB AFG1062 < 10 MHz: ±0.5 dB 10 MHz ≤ frq ≤ 60 MHz: ±0.9 dB Harmonic distortion (at 1.0 V...
Page 17: Table 10: Modulation
Specifications Table 9: Output characteristics (cont.) Characteristic Description PV ref page Rising/Falling Edge Time, typical AFG1022 < 12 ns (Fixed) AFG1062 < 10 ns (Fixed) Overshoot, typical < 5% Jitter (rms), typical AFG1022 < 1 ns AFG1062 < 500 ps...
Page 18 Sweep Carrier waveforms Sine, Square, Ramp and Arb Type Linear or Logarithmic Min start/stop frequency 1 μHz Max start/stop frequency AFG1022 Sine: 25 MHz Square: 12.5 MHz Ramp: 1 MHz AFG1062 Sine: 60 MHz Square: 30 MHz Ramp: 2 MHz...
Page 19: Input And Output Specifications
Up / Down Trigger Source Internal, External, or Manual Burst Waveforms Sine, Square, Ramp, Pulse, and Arbitrary Burst count AFG1022 1 to 50,000 cycles, infinite or gated AFG1062 1 to 1,000,000 cycles, infinite or gated Start Phase -360° to +360° Trigger Sources...
Page 20: General Specifications
Table 13: Power Characteristic Description Source voltage and frequency 220 - 240 VAC, 100 - 120 VAC, 50/60 Hz, CATⅡ Power consumption AFG1022 Less than 28 W AFG1062 Less than 35 W Fuse 110 V: 250 V, F1AL 220 V: 250 V, F0.5AL...
Page 21: Figure 1: Afg1000 Series Dimensions
Specifications 306.36 mm 229.16 mm (12.06 in) (9.02 in) 111.16 mm (4.38 in) Figure 1: AFG1000 Series dimensions AFG1000 Series Specifications and Performance Verification...
Page 22: Performance Tests
Performance tests The Performance Tests include functional tests, such as the interface functional test in this manual. The Functional Tests verify the functions; they verify that the instrument features operate. They do not verify that they operate within limits. The Performance Tests verify that the instrument performs as warranted. The Performance Tests check all the characteristics that are designated as checked in Specifications.
Page 23: Table 18: Test Equipment
Checks counter Frequency Accuracy: ±1 ppm Spectrum Analyzer 20 kHz to 1.25 GHz Tektronix RSA3303A Checks output signals. Harmonics Spurious. Tektronix part number BNC Coaxial Cable 50 Ω, male to male BNC Signal interconnection 012-0482-00 connector, 91 cm BNC terminator 50 Ω, ±1 Ω, 2 W, DC to...
Page 24: Test Record
Performance tests Table 18: Test equipment (cont.) Description Minimum requirements Recommended equipment Purpose 10. Adapter Dual-Banana Tektronix part number BNC (female) to dual banana Signal interconnection to a Plug 103-0090-00 11. Adapter BNC BNC (female) to N (male) Tektronix part number...
Page 25: Table 19: Series Performance Test Record
Performance tests Table 19: Series Performance Test Record Instrument Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician: Frequency, Amplitude, DC Offset, Counter, and AC Flatness Test Record Frequency Minimum Test result Maximum Sine at 1.000000 MHz 0.999999 MHz 1.000001 MHz Pulse at 1.000000 MHz 0.999999 MHz...
Page 26 Minimum Test result Maximum Sine at 1.000000 MHz 999.990 kHz 1.00009 MHz Pulse at 1.000000 MHz 999.990 kHz 1.00009 MHz AC Flatness (AFG1022) Minimum Test result Maximum CH1 AC Flatness ———- ———- Frequency 1.00 kHz dB ( = Reference) (Ampl: 1.000 V Reference - 0.40 dB...
Page 27 Frequency 60.00 MHz Reference - 0.90 dB Reference + 0.90 dB Harmonic Distortion Test Record Fundamental = reference Limit Harmonic Distortion Spectrum Analyzer reading AFG1022 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz Sine 20 kHz CH1 Harmonic Distortion...
Page 28 Performance tests AFG1062 Spectrum Analyzer reading 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz Sine 20 kHz CH1 Harmonic Distortion 0 dBc reading - reference Nth - reference < -60 dBc CH2 Harmonic Distortion 0 dBc reading - reference Nth - reference <...
Page 29 Performance tests Total Harmonic Distortion (THD) Test Record Spectrum Analyzer reading Fundamental reference 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz 120 kHz 140 kHz Sine 20.0 kHz CH1 reading (dBm) reading - reference (A (dBc) = 10 Bn/20 Limit ∑...
Page 30: Frequency/Period Test
Performance tests Frequency/Period test This test verifies the frequency accuracy of the instrument. All output frequencies are derived from a single generated frequency. Only one frequency point of channel 1 is required to be checked. 1. Connect the arbitrary function generator to the frequency counter as shown in the following figure.
Page 31: Amplitude Test
Performance tests 5. Push the Pulse button on the front panel. 6. Check that reading of the Frequency Counter is between 0.999999 MHz and 1.000001 MHz. Amplitude test This test verifies the amplitude accuracy of the arbitrary function generator. All output amplitudes are derived from a combination of attenuators and 3 dB variable gain.
Page 32: Figure 4: Amplitude Tests
Performance tests 3. Connect the arbitrary function generator to the DMM as shown in the following figure. Be sure to connect the 50 Ω terminator to the arbitrary function generator Output connector side. Figure 4: Amplitude tests 4. Set up the arbitrary function generator as follows: a.
Page 33: Dc Offset Test
Performance tests DC offset test This test verifies the DC offset accuracy of the arbitrary function generator. This test uses a 50 Ω terminator. It is necessary to know the accuracy of a 50 Ω terminator in advance of this test. This accuracy is used as a calibration factor.
Page 34: Counter Test
Performance tests b. Press the Others bezel button. c. Press the Built_in bezel button, then Others bezel button. Select DC. d. Press the Offset/Low bezel button to choose Offset. The chosen parameter will be lighted with white background. e. Use the numeric keypad or the general purpose knob to set the offset value.
Page 35 Performance tests 2. Push the following buttons to recall the AFG1000 Series default setup: Utility > System > Set to Default. 3. Push the following buttons to enter the frequency counter function of AFG1000 Series: Utility > Counter. 4. Set up the AFG2021 signal generator as follows: a.
Page 36: Ac Flatness Test
Performance tests AC flatness test This test verifies the flatness of a sine wave to 1 kHz sine wave. 1. Connect the arbitrary function generator to the DMM as shown in the following figure. Be sure to connect the 50 Ω terminator to the arbitrary function generator Output connector side.
Page 37 7. Set the frequency of the Power Meter to 500 kHz. 8. Verify that the power measurement at each frequency is within the error specified in the following table. 9. Repeat steps 1 through 8 for the channel 2 output. AFG1022 Measurement Range (dB)
Page 38: Harmonics Distortion Test
Performance tests Harmonics distortion test This test verifies the harmonic distortion using a spectrum analyzer. 1. Connect the arbitrary function generator to the spectrum analyzer as shown in the following figure. Figure 10: Harmonic distortion tests 2. Push the following buttons to recall the arbitrary function generator default setup: Utility>...
Page 39 7. Verify that the differences between the reference level and the signal level in the frequency of higher-order at each frequency are below the limit specified in the following table. 8. Repeat steps 1 through 7 for the channel 2 output. AFG1022 Spectrum Analyzer Measurement Limit...
Page 40: Total Harmonic Distortion Test
Performance tests Total harmonic distortion test This test verifies the total harmonic distortion (THD) using a spectrum analyzer. 1. Connect the arbitrary function generator to the spectrum analyzer as shown in the following figure. Figure 11: Total harmonic distortion tests 2.
Page 41 Performance tests 6. Measure and record each level (A1 to A7) to the seventh harmonics of the 20 kHz sine wave. 7. Calculate the each B1 to B7, C1 to C7 value and the THD. NOTE: When all the harmonic components are -62 dBm or less, the calculation of THD can be skipped because it is THD <...

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