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Copyright 2003 by Tabor Electronics Ltd. Printed in Israel. All rights reserved. This book or parts thereof may
not be reproduced in any form without written permission of the publisher.
User Manual
Model 9260
Dual Channel/Differential
Power Amplifier
Publication No. 041210
Tabor Electronics Ltd.
Tabor Electronics Ltd.
P.O. Box 404, Tel Hanan Israel 20302
Tel: +972-4-821-3393, FAX: +972-4-821-3388
PUBLICATION DATE: March 1, 2016
Rev 1.0
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Summary of Contents for Tabor Electronics 9260
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Page 1: User Manual
P.O. Box 404, Tel Hanan Israel 20302 Tel: +972-4-821-3393, FAX: +972-4-821-3388 PUBLICATION DATE: March 1, 2016 Copyright 2003 by Tabor Electronics Ltd. Printed in Israel. All rights reserved. This book or parts thereof may not be reproduced in any form without written permission of the publisher. -
Page 2: Proprietary Notice
Authorization is required from Tabor Electronics before you send us your product for service or calibration. Call your nearest Tabor Electronics support facility. A list is located on the last page of this manual. If you are unsure where to call, contact Tabor Electronics Ltd. Tel Hanan, Israel at 972-4-821-3393 or via fax at 972-4- 821-3388. -
Page 3: For Your Safety
FOR YOUR SAFETY Before undertaking any troubleshooting, maintenance or exploratory procedure, read care- fully the WARNINGS and CAUTION notices. This equipment contains voltage hazardous to human life and safety, and is capable of inflicting personal injury. If this instrument is to be powered from the AC line (mains) through an auto- transformer, ensure the common connector is connected to the neutral (earth pole) of the power supply. -
Page 4: Declaration Of Conformity
DECLARATION OF CONFORMITY We: Tabor Electronics Ltd. 9 Hatasia Street, Tel Hanan ISRAEL 36888 declare, that the 45MHz 34Vp-p Dual / Differential Channel Signal Amplifier Model 9260 meet the intent of Directive 89/336/EEC for Electromagnetic Compatibility and the requirements of the Low Voltage Directive 73/23/EEC amended by 93/68/EEC. -
Page 5: Table Of Contents
Power Requirements ..........................2-4 Grounding Requirements ........................2-5 Long Term Storage or Repackaging for Shipment ................. 2-5 Preparation for Use ..........................2-6 Installation..............................2-6 Factory Configuration of the 9260 Settings ..................... 2-6 Field Configuration of the 9260 Settings ....................2-7... - Page 6 Chapter 3 - MAINTENANCE, PERFORMANCE CHECKS and ADJUSTMENTS What’s in This Chapter ..........................3-1 Disassembly Instructions ......................... 3-1 Special Handling of Static Sensitive Devices ..................3-2 Cleaning ..............................3-3 Repair and Replacement ......................... 3-3 Performance Checks..........................3-4 Environmental Conditions ........................3-4 Recommended Test Equipment ......................
- Page 7 List of Figures 1 -1, The Model 9260 ..........................1-3 1 -2, The 9260 Rear Panel ........................1-6 2-1, Field Modification of Channel 1 Input Impedance ................2-7 List of Tables 2 -1, Input Impedance Jumpers ........................ 2-7 ...
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Page 9: Chapter 1 - Portrayal
34 Vp-p. Note The output of the 9260 tends to oscillate if left open. The same may occur if the signal is applied to a high impedance source. The bandwidth of the amplifier is around 30 MHz for large signals. -
Page 10: 9260 Feature Highlights
2 outputs an inverted signal that has exactly 180 phase offset to the normal output. Full amplitude and bandwidth is preserved when the 9260 operates in differential mode. Using the differential mode, the 9260 does not sacrifice accuracy, nor does it sacrifice bandwidth. -
Page 11: Functional
Figure 1 -1, The Model 9260 Detailed functional description of the features, operation and Functional options available with the 9260 is given in the following paragraphs. Description The wideband amplifier can be ordered with different configurations such as input impedance, gain, etc. Therefore read the following... -
Page 12: Specifications
20C to 30C. Specifications outside of the temperature range are degraded by 0.1% per C. The 9260 has 4 BNC connectors on its front panel, two for each Front Panel channel. Two are marked INPUT and the other two are marked Connectors OUTPUT. - Page 13 Channel 1 Output The channel 1 output connector outputs amplified signals. When the 9260 is configured as two separate amplifiers, this output connector generates amplified signals that are applied to the channel 1 input connector. If the instrument is configured for...
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Page 14: Front Panel
The 9260 has 2 indicators on its front panel. The POWER LED will Front Panel light as soon as you press the switch to power up the 9260. An Indicators illuminated power light designates power is applied to the instrument and you should expect to have signal at its output connector(s). - Page 15 Appendix A to avoid damaging the amplifier circuits. With normal configuration, this input is used for driving the front panel output for channel 1 only. When the 9260 is configured for differential outputs, channel 2 auxiliary inputs are disabled and only channel 1 signal is amplified.
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Page 16: Operating
I/O connectors. Being a passive device, there are no controls, nor computer Operating programming required to operate the Model 9260. The following Instructions procedure is recommended for proper operation of the power amplifier: 1. Make sure your box is configured for input and output impedance and gain 2. -
Page 17: Chapter 2 - Installation
Chapter 2 CONFIGURING the INSTRUMENT Installation This chapter contains information and instructions necessary to prepare the Model 9260 for operation. Details are provided for initial Overview inspection, grounding safety requirements, repackaging instructions for storage or shipment, installation information and Ethernet address configuration. -
Page 18: Performance Checks
User Manual 9260 WARNING For maximum safety, do not touch the product, test ca- bles, or any other instrument parts while power is ap- plied to the circuit under test. ALWAYS remove power from the entire test system before connecting cables or... -
Page 19: Operating Environment
User Manual 9260 Operating The 9260 is intended for operation on the bench or inside a rack of instruments. It is intended for indoor use only and should be Environment operated in a clean, dry environment with an ambient temperature within the range of 0 °C to 50 °C. -
Page 20: Grounding Requirements
Failure to adhere to this limitation may damage the 9260 and the surrounding equipment connected to its I/O connectors. Long Term Storage If the instrument is to be stored for a long period of time or shipped to a service center, proceed as directed below. -
Page 21: Preparation For Use
The default configuration is single-ended. With this configuration, there are two independent channels that amplify signals that are applied to the channel 1 and 2 inputs. The 9260 can be ordered with differential outputs; In this case, channel 2 input is disabled and channel 1 output is amplified and routed differentially to both channels 1 and 2. -
Page 22: Field Configuration Of The 9260 Settings
User Manual 9260 Field Configuration Limited flexibility is available for you, as the user, to change 9260 configuration in the field. Changing configuration involves the opening of the 9260 Settings of the top cover and therefore, it is suggested that this operation be completely avoided or, if absolutely necessary, should be carried out by factory-trained person. -
Page 23: 2 -2, Input Coupling Jumpers
User Manual 9260 Configure Input/Output Coupling The default input/output coupling is DC. Before you change the 9260 input/output coupling settings, identify first the jumper location for all of the inputs and outputs. When the jumpers are on the links, the path is DC coupled. - Page 24 User Manual 9260 This page was intentionally left blank 2-8 Portrayal...
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Page 25: What's In This Chapter
This chapter provides maintenance and service information, performance tests, and the procedures necessary to adjust and Chapter troubleshoot the Model 9260 Universal Waveform Generator. WARNING The procedures described in this section are for use on- ly by qualified service personnel. Many of the steps cov-... -
Page 26: Special Handling Of Static Sensitive Devices
User Manual 9260 CMOS devices are designed to operate at very high impedance levels Special Handling for low power consumption. As a result, any normal static charge that of Static Sensitive builds up on your person or clothing may be sufficient to destroy these devices if they are not handled properly. -
Page 27: Cleaning
User Manual 9260 The Model 9260 should be cleaned as often as operating conditions Cleaning require. To clean the instrument, use the following procedure: Thoroughly clean the inside and outside of the instrument. When cleaning inaccessible areas, remove dust with low- pressure compressed air or a vacuum cleaner. -
Page 28: Performance Checks
Warm-up Period Most instruments are subject to small amount of drifts when first turned on. To ensure accuracy, turn on the power to the Model 9260 and allow it to warm-up for at least 10 minutes before beginning the performance test procedure. -
Page 29: Gain Accuracy Tests
User Manual 9260 Performance Check Use the following procedures to check the Model 9260 against the specifications. A complete set of specifications is listed in Appendix Procedures A. The following paragraphs show how to set up the instrument for the test, what the specifications for the tested function are, and what acceptable limits for the test are. -
Page 30: Amplifier Bandwidth
1. Configure the Oscilloscope as follows: 200 μs/div Time Base: Amplitude: 5 V/div 2. Connect the 9260 input to the PM8571A output 3. Connect 9260 Channel outputs to the Oscilloscope input via 50Ω/2W Termination 4. Configure the PM8571A as follows: Amplitude:... -
Page 31: Amplifier Pulse Response
Preparation: 1. Configure the Oscilloscope follows: Setup: As required for the test 2. Connect the 9260 input to the PM8571A output 3. Connect 9260 outputs to the oscilloscope input via 50Ω/2W Termination Configure the PM8571A as follows: Frequency: 1 MHz... -
Page 32: Auxiliary Input
1 μs/div Time Base: Amplitude: 5 V/div Measurement: DC offset 2. Connect the 9260 input to the PM8571A output 3. Connect 9260 Channel outputs to the Oscilloscope input via 50Ω/2W Termination 4. Configure the PM8571A as follows: Amplitude: Outputs: Frequency: 1MHz 5. -
Page 33: Auxiliary Input Checks
Amplitude: 5 V/div Measurement: Amplitude Vpp 2. Connect the 9260 input CH1 to the PM8571A CH1output and 9260 Auxiliary Input CH1 to the PM8571A CH2 output 3. Connect 9260 Channel outputs to the Oscilloscope input via 50Ω/2W Termination 4. Configure the PM8571A as follows:... -
Page 34: Adjustment Procedures
Output: 8. Adjust the PM8571A output till DMM reading is 0.707V 9. Connect the 9260 input channel 1 to the PM8571A output 10. Connect 9260 Channel 1 output to the DMM input via 50Ω/2W Termination Adjustment: Adjust RV5 till output amplitude is within 7.07 V, ±282 mV 11. -
Page 35: Pulse Response Adjustments
Frequency: 1MHz Amplitude: 2Vpp Output: 2. Connect the 9260 input channel 1 to the PM8571A output 3. Connect the 9260 output channel 1 to the oscilloscope input via 50Ω/2W Termination. Adjustment: Adjust C77 for best pulse response (<10ns, 10% aberrations) 4. - Page 36 User Manual 9260 This Page was intentionally left blank 3-12 MAINTENANCE, PERFORMANCE CHECKS and ADJUSTMENTS...
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Page 37: Appendix A - Specifications
Appendix A 9260 SPECIFICATIONS Main Input Characteristics Characteristics Description No. of Channels 2 with single-ended outputs; 1 with differential outputs, 2 Summing, 2 DC offset Connector Front panel BNC 50Ω, 75Ω or 1MΩ (factory configured) Impedance Coupling DC or AC... - Page 38 Frequency Characteristics Description Frequency Range DC to 45MHz 50Ω Load Bandwidth (-3dB) 45MHz (typ.) Harmonics Distortion (typ.) 10Vpp 25Vpp 1MHz <-65dBc <-54dBc 10MHz <-50dBc <-45dBc 30MHz <-38dBc <-30dBc Mechanical, Environmental and Maintenance Specifications Power supply Characteristics Description Power Requirements 85V to 265V, 47-63Hz, <25W Signal Ground Grounded to case ground or Floating EMC Certification...
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