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Related Manuals for Keysight Technologies N4985A-P15
Summary of Contents for Keysight Technologies N4985A-P15
- Page 1 Keysight N4985A System Amplifiers Operating and Service Manual...
- Page 2 Federal Acqui- DOCUMENT IS PROVIDED “AS IS,” sition Regulation (“FAR”) 2.101. Pursu- AND IS SUBJECT TO BEING © Keysight Technologies 2013-2017 ant to FAR 12.212 and 27.405-3 and CHANGED, WITHOUT NOTICE, IN No part of this manual may be repro- Department of Defense FAR Supple- FUTURE EDITIONS.
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Page 3: Compliance Notices And Regulatory Information
Compliance Notices and Regulatory Information Compliance with Electromagnetic Compatibility (EMC) This product conforms with the protection requirements of EMC Directive 2004/ 108/EC for Electromagnetic Compatibility. This product complies to the EMC Directive by assessment according to the IEC/ EN61326-1:2005 EMC standard. In order to preserve the EMC performance of this product, any cable which becomes worn or damaged must be replaced with the same type and specifications. -
Page 4: Regulatory Markings
Regulatory markings The CE mark is a registered trademark of the European Community. This CE mark shows that the product complies with all the relevant European Legal Directives. The CE mark is a registered trademark of the ICES/NMB-001 indicates that European Community. -
Page 5: Waste Electrical And Electronic Equipment (Weee) Directive 2002/96/ Ec
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/ 96/EC This instrument complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard this electrical or electronic product in domestic household waste. Product category With reference to the equipment types in the WEEE directive Annex 1, this instrument is classified as a “Monitoring and Control Instrument”... - Page 6 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N4985A Operating and Service Manual...
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Page 7: Table Of Contents
Table of Contents Compliance Notices and Regulatory Information ....3 Compliance with Electromagnetic Compatibility (EMC) ... 3 Regulatory markings . - Page 8 Example Application ........47 Service and Maintenance .
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Page 9: Keysight N4985A Operating And Service Manual
Figure 3-16 Typical N4985A-P15 performance (S21) ...37 Figure 3-17 Typical N4985A-P15 performance (group delay) ..37 Figure 3-18 Typical N4985A-P15 performance (S11, S22) ..38... - Page 10 ....... . . 42 Figure 3-25 Mechanical dimensions of the N4985A-P15/N4985A-P25 amplifier .
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Page 11: Keysight N4985A Operating And Service Manual
..27 Table 3-3 Additional specifications for N4985A-OA5 ..27 Table 3-4 N4985A-P15 and N4985A-P25 specifications ..35 Table 3-5 Supplementary specifications for the N4985A amplifiers Table 3-6 Physical specifications for the N4985A amplifiers . - Page 12 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N4985A Operating and Service Manual...
- Page 13 Keysight N4985A System Amplifiers Operating and Service Manual Introduction Product Overview This chapter provides an overview of the N4985A system amplifiers.
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Page 14: Introduction
Introduction Product Overview High performance broadband RF amplifier The N4985A-S30 and N4985A-S50 system amplifiers are high performance, broadband amplifiers featuring baseband RF (<100 kHz) through millimeter wave frequency coverage. These amplifiers, which have many uses in research, development, or production-line environment, are a useful addition to the laboratory where RF, microwave, or millimeter wave measurements are made. -
Page 15: Figure 1-2 Keysight N4985A-P15/N4985A-P25 Amplifier
Introduction High performance system amplifier The N4985A-P15 and N4985A-P25 are high performance, broadband amplifiers with excellent power and gain up to 50 GHz, which have many uses in research, development, or production-line environment. These amplifiers are a useful addition to the laboratory where RF, microwave, or millimeter wave measurements are made. -
Page 16: Features Of The Keysight N4985A Amplifiers
N4985A-P15 and N4985A-P25 – The amplifier is designed to be easily used in laboratory and test applications. -
Page 17: Applications
The N4985A-P15 and N4985A-P25 are test amplifiers designed for broadband power and gain applications. It is ideally suited for saturated RF amplifier testing, driving TWT amplifiers, or as an antenna system amplifier. High gain and typically... - Page 18 Introduction THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N4985A Operating and Service Manual...
- Page 19 Keysight N4985A System Amplifiers Operating and Service Manual Installation Initial Inspection Service and Recalibration Related Documentation Operating and Safety Precautions This chapter provides you important information on how to check and prepare your instrument for operation.
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Page 20: Installation
“Sales and Technical Support” on page 5 of this manual for the Keysight Technologies nearest to you. Attach a tag indicating the type of service required, return address, model number, and serial number. Mark the container FRAGILE to insure careful handling. In any correspondence, refer to the instrument by model number and serial number. -
Page 21: Service And Recalibration
Installation Service and Recalibration If your N4985A amplifiers require service or repair, contact the nearest Keysight office for information on where to send it. Refer to “Sales and Technical Support” on page 5 of this manual. The performance of the N4985A can only be verified by specially-manufactured equipment and calibration standards from Keysight. -
Page 22: Operating And Safety Precautions
Installation Operating and Safety Precautions Observe the following guidelines before connecting or operating the N4985A system amplifiers. ESD damage Protection against electrostatic discharge (ESD) is important while handling and operating the N4985A. Static electricity can build up on your body and can easily damage sensitive components when discharged. - Page 23 Installation The N4985A can be damaged if excessive torque is applied to the CAUTION connectors. The recommended torque value is 8 lb-in torque for 2.4 mm and 2.92 mm, 5 Ib-in torque for 1.85 mm DCA sampling head. Keysight N4985A Operating and Service Manual...
- Page 24 Installation THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N4985A Operating and Service Manual...
- Page 25 Keysight N4985A System Amplifiers Operating and Service Manual Specifications General Specifications Supplementary Specifications Physical Specifications Mechanical Dimensions This chapter provides the specifications of the N4985A system amplifiers.
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Page 26: Specifications
Specifications General Specifications Specifications Specifications refer to the performance standards or limits against which the N4985A is tested. Typical characteristics are included for additional information only and they are not specifications. These are denoted as “typical”, “nominal”, or “approximate” and are printed in italics. - Page 27 Specifications Table 3-2 Additional specifications for N4985A-OA3 Description Minimum Typical Maximum Output eye amplitude — S21 (V) Input eye amplitude — — S21 (ps) Jitter additive (rms) — < 0.5 < 1 Tr/Tf (ps) Rise/fall time — < 8 < 10 Table 3-3 Additional specifications for N4985A-OA5 Description...
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Page 28: Figure 3-2 Gain Versus Output Power (P 1Db Indicated With *)
Specifications Figure 3-2 Gain versus output power (P indicated with *) [for N4985A-S30] Figure 3-3 Saturated output power (for N4985A-S30) Keysight N4985A Operating and Service Manual... -
Page 29: N4985A-Oa3 (2 31 - 1) Eye: >7 V Output (1.5 V/Div)
Specifications Figure 3-4 N4985A-OA3 (2 – 1) EYE: >7 V output (1.5 V/div) Figure 3-5 N4985A-OA3 (2 – 1) EYE: <500 fs added rms jitter (5 ps/div) Keysight N4985A Operating and Service Manual... -
Page 30: N4985A-Oa3
Specifications Figure 3-6 N4985A-OA3 (2 – 1) EYE: <10 ps Tf/Tf (5 ps/div) Figure 3-7 N4985A-OA3 (2 – 1) EYE: Input signal from PRBS generator Keysight N4985A Operating and Service Manual... -
Page 31: Figure 3-8 Small Signal Parameters Versus Frequency
Specifications Figure 3-8 Small signal parameters versus frequency (for N4985A-S50) Figure 3-9 Gain versus output power (P indicated with *) [for N4985A-S50] Keysight N4985A Operating and Service Manual... -
Page 32: Figure 3-10 Saturated Output Power (For N4985A-S50)
Specifications Figure 3-10 Saturated output power (for N4985A-S50) Figure 3-11 Input pulse = Ch3, 420 m Vppk, 10.4 pS rise time, Output pulse = Ch4, 6.5 Vppk, 11.0 pS rise time (for N4985A-S50) Keysight N4985A Operating and Service Manual... -
Page 33: Figure 3-12 N4985A-Oa5
Specifications Figure 3-12 N4985A-OA5 (2 – 1) EYE: >7 V output (1.5 V/div) Figure 3-13 N4985A-OA5 (2 – 1) EYE: <500 fs added rms jitter (5 ps/div) Keysight N4985A Operating and Service Manual... -
Page 34: N4985A-Oa5
Specifications Figure 3-14 N4985A-OA5 (2 – 1) EYE: <10 ps Tf/Tf (5 ps/div) Figure 3-15 N4985A-OA5 (2 – 1) EYE: Input signal from PRBS generator Keysight N4985A Operating and Service Manual... -
Page 35: Table 3-4 N4985A-P15 And N4985A-P25 Specifications
Specifications Table 3-4 N4985A-P15 and N4985A-P25 specifications Specification N4985A-P15 N4985A-P25 Frequency 10 MHz to 50 GHz 2 GHz to 50 GHz Gain (dB) 30 dB 30 dB 20 (min), 25 (typ) 10 MHz to 2 GHz 25 (min), 29 (typ) - Page 36 Specifications Table 3-4 N4985A-P15 and N4985A-P25 specifications (continued) Specification N4985A-P15 N4985A-P25 –60 (typ) 10 MHz to 2 GHz –60 (typ) 2 GHz to 10 GHz –60 (typ) 2 GHz to 10 GHz –60 (typ) 10 GHz to 30 GHz Reverse isolation (dB) –60 (typ)
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Page 37: Figure 3-16 Typical N4985A-P15 Performance (S21)
Specifications Figure 3-16 Typical N4985A-P15 performance (S21) Figure 3-17 Typical N4985A-P15 performance (group delay) Keysight N4985A Operating and Service Manual... -
Page 38: Figure 3-18 Typical N4985A-P15 Performance (S11, S22)
Specifications Figure 3-18 Typical N4985A-P15 performance (S11, S22) Figure 3-19 Typical N4985A-P15 performance (saturated output power) Keysight N4985A Operating and Service Manual... -
Page 39: Figure 3-20 Typical N4985A-P25 Performance (S21)
Specifications Figure 3-20 Typical N4985A-P25 performance (S21) Figure 3-21 Typical N4985A-P25 performance (group delay) Keysight N4985A Operating and Service Manual... -
Page 40: Figure 3-22 Typical N4985A-P25 Performance (S11, S22)
Specifications Figure 3-22 Typical N4985A-P25 performance (S11, S22) Figure 3-23 Typical N4985A-P25 performance (saturated output power) Keysight N4985A Operating and Service Manual... -
Page 41: Supplementary Specifications
Supplementary Specifications Table 3-5 Supplementary specifications for the N4985A amplifiers Model N4985A-S30 N4985A-S50 N4985A-P15 N4985A-P25 Bias voltage and current 9 Vdc at 500 mA 9 Vdc at 500 mA 9 Vdc at 1.5 A 9 Vdc at 1.5 A RF connectors 2.92 mm (f) -
Page 42: Mechanical Dimensions
Specifications Mechanical Dimensions Figure 3-24 Mechanical dimensions of the N4985A-S30/N4985A-S50 amplifier [1] Dimensions in millimeters. Keysight N4985A Operating and Service Manual... -
Page 43: Figure 3-25 Mechanical Dimensions Of The N4985A-P15/N4985A-P25
Specifications Figure 3-25 Mechanical dimensions of the N4985A-P15/N4985A-P25 amplifier Keysight N4985A Operating and Service Manual... - Page 44 Specifications THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N4985A Operating and Service Manual...
- Page 45 Keysight N4985A System Amplifiers Operating and Service Manual Operating Guide Operating Instructions Service and Maintenance This chapter provides the operating instructions for the N4985A system amplifiers.
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Page 46: Operating Guide Operating Instructions
Operating Guide Operating Instructions Performance verification The figures below show the setup used to verify the performance of the N4985A system amplifiers. A calibrated power splitter (or calibrated coupler) connected to the amplifier input reference plane and to power sensor A, as shown, establishes the input power level. -
Page 47: Figure 4-3 Example Of An Amplified Rf Power Measurement System
Operating Guide Example Application The N4985A amplifies the RF Source output power to the level needed to characterize DUT performance. The small size of the N4985A is easy to place close to the DUT input “Reference Plane”. The high gain of the amplifier easily overcomes the cable losses from the remote RF Source. -
Page 48: Service And Maintenance
Operating Guide Service and Maintenance Service The N4985A does not have internal adjustments and should not be opened; it should only be repaired by service-trained personnel. Should it become necessary to return the N4985A for repair or service, contact your nearest Keysight Sales and Service Center. - Page 49 This information is subject to change without notice. Always refer to the Keysight website for the latest revision. © Keysight Technologies 2013-2017 Edition 3, March 17, 2017 Printed in Malaysia *N4985-90001* N4985-90001 www.keysight.com...