Keysight N7010A
Active Termination Adapter
User’s Guide
Notices
CAUTION
WARNING
© Keysight Technologies, Inc. 2015-2016,
2020
No part of this manual may be reproduced in
any form or by any means (including electronic storage and retrieval or translation into
a foreign language) without prior agreement
and written consent from Keysight Technologies, Inc. as governed by United States and
international copyright laws.
Manual Part Number
N7010-97003
Edition
Fourth edition, November 2020
Published by:
Keysight Technologies, Inc.
1400 Fountaingrove Parkway
Santa Rosa, CA, 95403
Warranty
The material contained in this document is
provided “as is,” and is subject to being
changed, without notice, in future editions.
Further, to the maximum extent permitted
by applicable law, Keysight disclaims all
warranties, either express or implied, with
regard to this manual and any information
contained herein, including but not limited
to the implied warranties of merchantability
and fitness for a particular purpose. Keysight shall not be liable for errors or for incidental or consequential damages in
connection with the furnishing, use, or performance of this document or of any information contained herein. Should Keysight
and the user have a separate written agreement with warranty terms covering the
material in this document that conflict with
these terms, the warranty terms in the separate agreement shall control.
Technology Licenses
The hardware and/or software described in
this document are furnished under a license
and may be used or copied only in accordance with the terms of such license.
Restricted Rights Legend
U.S. Government Rights. The Software is
"commercial computer software," as
defined by Federal Acquisition Regulation ("FAR") 2.101. Pursuant to FAR
12.212 and 27.405-3 and Department
of Defense FAR Supplement ("DFARS")
227.7202, the U.S. government acquires
commercial computer software under
the same terms by which the software is
customarily provided to the public.
Accordingly, Keysight provides the Software to U.S. government customers
under its standard commercial license,
which is embodied in its End User
License Agreement (EULA), a copy of
which can be found at http://www.keysight.com/find/sweula. The license set
forth in the EULA represents the exclusive authority by which the U.S. government may use, modify, distribute, or
disclose the Software. The EULA and the
license set forth therein, does not
require or permit, among other things,
that Keysight: (1) Furnish technical
information related to commercial computer software or commercial computer
software documentation that is not customarily provided to the public; or (2)
Relinquish to, or otherwise provide, the
government rights in excess of these
rights customarily provided to the public
to use, modify, reproduce, release, perform, display, or disclose commercial
computer software or commercial computer software documentation. No additional government requirements beyond
those set forth in the EULA shall apply,
except to the extent that those terms,
rights, or licenses are explicitly required
from all providers of commercial computer software pursuant to the FAR and
the DFARS and are set forth specifically
in writing elsewhere in the EULA. Keysight shall be under no obligation to
update, revise or otherwise modify the
Software. With respect to any technical
data as defined by FAR 2.101, pursuant
to FAR 12.211 and 27.404.2 and DFARS
227.7102, the U.S. government acquires
no greater than Limited Rights as
defined in FAR 27.401 or DFAR
227.7103-5 (c), as applicable in any
technical data.
Safety Notices
A CAUTION notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in personal
injury or death. Do not proceed
beyond a WARNING notice until the
indicated conditions are fully
understood and met.
2 N7010A User’s guide
Contents
1 General Information / 5
Connecting the N7010A / 6
Using the N7010A / 8
N7010A’s Low Noise Floor / 11
Avoiding Costly Repairs / 12
Safety Information / 14
Inspecting the N7010A / 17
Cleaning the N7010A / 17
Returning the Product for Service / 18
Contacting Keysight Technologies / 19
2 Specifications and Characteristics / 21
Specifications and Characteristics / 22
N7010A Dimensions / 26
3 Performance Verification / 27
Test 1. Bandwidth / 28
Test 2. Input Resistance at DC / 34
Performance Test Record / 37
Index
N7010A User’s guide 3
Contents
4 N7010A User’s Guide
Keysight N7010A Active Termination Adapter
CAUTION
CAUTION
User’s Guide
1 General Information
Connecting the N7010A 6
Using the N7010A 8
N7010A’s Low Noise Floor 11
Avoiding Costly Repairs 12
Safety Information 14
Inspecting the N7010A 17
Cleaning the N7010A 17
Returning the Product for Service 18
Contacting Keysight Technologies 19
The N7010A active termination adapter is a 30 GHz single-ended adapter
featuring a user adjustable common termination voltage (V
noise performance. The N7010A is ideal for high SNR (low noise) measurements
for standards such as:
• HDMI 2.0,
• DisplayPort, and
• MIPI M-PHY Gear 3/4.
) and extremely low
term
Before using the N7010A, refer to “Safety Information" on page 14. Handle the N7010A
with care and refer to the safety notices in this manual. Avoid any mechanical shocks to
this product in order to guarantee accurate performance and protection.
The maximum allowable input to the N7010A is ±4V.
5
1 General Information
NOTE
Connecting the N7010A
Compatible Oscilloscopes
The N7010A is compatible with the Keysight oscilloscopes shown in Table 1. The
table also lists the minimum required firmware version for the oscilloscope. The
N7010A is designed for oscilloscopes with 50Ω AutoProbe II interface channel
inputs. The AutoProbe II interface also provides power to the probe.
Table 1 Compatible Oscilloscopes and Support
Infiniium Oscilloscopes Required Firmware Version
Z-Series ¡ 5.30
V-Series
90000Q
UXR-Series
(Compatible for use with UXR-Series <=33 GHz)
90000X ¡ 5.50.0031
Is Your Oscilloscope Software Up-to-Date? Keysight periodically releases software updates to
support your probe, fix known defects, and incorporate product enhancements. To download
the latest firmware, go to www.keysight.com and search for your oscilloscope’s topic. Click on
the “Drivers, Firmware & Software” tab.
N7010A Input Connection
The N7010A comes with a 2.9 mm precision connector and a removable 3.5 mm
connector saver as shown in Figure 1 on page 7. The 2.9 mm connector is
compatible with 2.92 mm, 3.5 mm, and SMA connectors but can be damaged by
mating to low-quality SMA connectors. You can also connect SMP cables using an
adapter (not provided).
The relatively inexpensive connector saver protects the N7010A’s 2.9 mm
connector from wear caused when repeatedly making cable connections or from
mating with low-quality SMA connectors.
6 N7010A User’s Guide
General Information 1
CAUTION
CAUTION
CAUTION
Avoid costly repairs that are caused from making improper connections to the 2.9 mm
precision RF input connector. Always properly align any mating connection before
tightening the connection to the specified torque.
Torque all cables and adapter connections to the 2.9 mm connector to 8 in-lbs
(90 N-cm).
Torque all cables and adapter connections to the 3.5 mm connector saver to 8 in-lbs
(90 N-cm).
N7010A User’s Guide 7
Figure 1 N7010A with Supplied Connector Saver
1 General Information
CAUTION
Using the N7010A
This section describes how to use the N7010A active termination adapter. Figure 2
shows a block diagram of the N7010A connected to the oscilloscope. The V
V
controls are supplied from the oscilloscope via the AutoProbe II connector.
term
off
and
8 N7010A User’s Guide
V
Figure 2 Simplified Function Diagram
To avoid damaging the N7010A, the maximum low frequency (LF) input voltage must not
exceed ±8V. LF is defined as DC to approximately 50 kHz, and AC is defined as greater
than approximately 50 kHz.
Control
term
The V
terminated to a voltage rather than to ground, which is required by some devices
under tests (DUTs). V
never be more than 0.6V away from V
To set the V
1 Click Setup > Probe Configuration to open the Probe Configuration dialog box.
control is used to allow the 50 ohm input of the N7010A to be
term
can be set anywhere from –4V to +4V, however Vin must
term
voltage, perform the following steps on the oscilloscope:
term
term
.
General Information 1
2 Select the N7010A tab.
3 In the dialog box’s Probe System field, click Options to open the Probe dialog box.
4 Set the Termination Voltage.
Figure 3 Probe Dialog Box
V
Control
off
The V
thereby allowing the N7010A output to be centered around ground.
To set the V
1 Click Setup > Probe Configuration to open the Probe Configuration dialog box.
2 Select the N7010A tab.
3 In the dialog box’s Probe System field, click Probe Offset and enter the required
offset voltage.
N7010A User’s Guide 9
control allows the N7010A to subtract the DC voltage component from Vin
off
control, perform the following steps on the oscilloscope:
off
1 General Information
600 mV– V
inputVtermination
–()+600 mV≤≤
NOTE
CAUTION
Maximum Signal Input
To avoid distortion, the input signal to the N7010A must and be within the
following limits:
The maximum allowable input signal (1.2 V
V
and V
term
signal into the oscilloscope is centered around ground.
Vin is the voltage at the input of the N7010A. If the source driving the N7010A has a non-zero
output impedance then V
is adjusted to remove the DC component of Vin, which means the
off
will interact with Vin.
term
) occurs when Vin is centered on
pp
To avoid damaging the N7010A, the maximum low frequency (LF) voltage on the input
should not exceed ±8V. To avoid damaging the oscilloscope input, the maximum AC
voltage should not exceed 5V
(which is 0.5W into 50 ohms).
rms
10 N7010A User’s Guide
N7010A’s Low Noise Floor
With the N7010A’s low attenuation ratio setting (1.16:1), the adapter has an
extremely lower noise floor. The following two pictures compare two eye diagrams
for the same MIPI M-PHY Gear 3 data rate signal at 5.8304 Gb/s. The amplitude
swing is 140 mV
oscilloscope’s channel input without using a N7010A. Figure 5 shows the same
signal connected to the oscilloscope through the N7010A. Notice that the N7010A
doesn’t inherently contribute noise.
pp
General Information 1
. Figure 4 shows the signal connected directly to the Infiniium
Figure 4 Direct Signal Connect to Infiniium Scope Without N7010A
Figure 5 Signal Connected to Infiniium Scope Through N7010A
N7010A User’s Guide 11
1 General Information
CAUTION
WARNING
Avoiding Costly Repairs
When connecting or using the N7010A, use caution to avoid damaging the
oscilloscope’s channel input circuits due to electrostatic discharge (ESD).
When the N7010A is connected to the oscilloscope, the
oscilloscope’s channel input circuits can be damaged by
electrostatic discharge (ESD). Avoid applying static
discharges to the N7010’s input. Prior to energizing and
connecting any accessory cable to the N7010A,
momentarily short the center and outer conductors of
the cable together. Be sure that the instrument is
properly earth-grounded to prevent buildup of static
charge. Wear a wrist-strap or heel-strap.
Figure 6 on page 13 shows an example of a static-safe work station using two
types of ESD protection:
• Conductive table-mat and wrist-strap combination.
• Conductive floor-mat and heel-strap combination.
12 N7010A User’s Guide
Both types, when used together, provide a significant level of ESD protection. Of
the two, only the table-mat and wrist-strap combination provides adequate ESD
protection when used alone. To ensure user safety, the static-safe accessories
must provide at least 1 MΩ of isolation from ground. Purchase acceptable ESD
accessories from your local supplier.
These techniques for a static-safe work station should not be used when working on
circuitry with a voltage potential greater than 500 volts.
General Information 1
Figure 6 ESD Workstation
N7010A User’s Guide 13
1 General Information
WARNING
WARNING
WARNING
WARNING
WARNING
Safety Information
This manual provides information and warnings essential for operating the
N7010A in a safe manner and for maintaining it in safe operating condition. Before
using this equipment and to ensure safe operation and to obtain maximum
performance from the probe, carefully read and observe the following warnings,
cautions, and notes.
This product has been designed and tested in accordance with accepted industry
standards, and has been supplied in a safe condition. The documentation contains
information and warnings that must be followed by the user to ensure safe
operation and to maintain the product in a safe condition.
Note the external markings on the probe that are described in this document.
To avoid personal injury and to prevent fire or damage to this product or products
connected to it, review and comply with the following safety precautions. Be aware that
if you use this probe assembly in a manner not specified, the protection this product
provides may be impaired.
Use Only Grounded Instruments.
Do not connect the probe’s ground lead to a potential other than earth ground. Always
make sure the probe and the oscilloscope are grounded properly.
Connect and Disconnect Properly.
Connect the probe to the oscilloscope and connect the ground lead to earth ground
before connecting the probe to the circuit under test. Disconnect the probe input and
the probe ground lead from the circuit under test before disconnecting the probe from
the oscilloscope.
Do Not Operate Without Covers. To avoid electrical shock or fire hazard, do not operate
this probe with the covers removed.
Do Not Operate in Wet / Damp Conditions.
To avoid electrical shock, do not operate this probe in wet or damp conditions.
14 N7010A User’s Guide
General Information 1
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
Do Not Operate in an Explosive Atmosphere.
To avoid injury or fire hazard, do not operate this probe in an explosive atmosphere.
Avoid Exposed Circuit. To avoid injury, remove jewelry such as rings, watches, and other
metallic objects. Do not touch exposed connections and components when power is
present.
For Indoor Use Only. Only use this probe indoors.
Do Not Operate With Suspected Failures. If you suspect there is damage to this probe,
have it inspected by a qualified service personne.
Concerning the Oscilloscope or Voltage Measuring Instrument to Which
the Probe is Connected
Whenever it is likely that the ground protection is impaired, you must make the
instrument inoperative and secure it against any unintended operation.
If you energize the instrument by an auto transformer (for voltage reduction or mains
isolation), the ground pin of the input connector terminal must be connected to the
earth terminal of the power source.
Before turning on the instrument, you must connect the protective earth terminal of the
instrument to the protective conductor of the (mains) power cord. The mains plug shall
only be inserted in a socket outlet provided with a protective earth contact. You must
not negate the protective action by using an extension cord (power cable) without a
protective conductor (grounding). Grounding one conductor of a two-conductor outlet
is not sufficient protection.
N7010A User’s Guide 15
1 General Information
WARNING
WARNING
Only fuses with the required rated current, voltage, and specified type (normal blow,
time delay, etc.) should be used. Do not use repaired fuses or short-circuited fuse
holders. To do so could cause a shock or fire hazard.
Capacitors inside the instrument may retain a charge even if the instrument is
disconnected from its source of supply.
16 N7010A User’s Guide
Inspecting the N7010A
• Inspect the shipping container for damage.
Keep the damaged shipping container or cushioning material until the contents
of the shipment have been checked for completeness and the probe has been
checked mechanically and electrically.
• Check the accessories.
• If the contents are incomplete or damaged, notify your Keysight Technologies
Sales Office.
• Inspect the
does not operate properly or pass calibration tests, notify your Keysight
Technologies Sales Office.
If the shipping container is damaged, or the cushioning materials show signs of
stress, notify the carrier as well as your Keysight Technologies Sales Office. Keep
the shipping materials for the carrier’s inspection. The Keysight Technologies
office will arrange for repair or replacement at Keysight Technologies’ option
without waiting for claim settlement.
General Information 1
N7010A. If there is mechanical damage or defect, or if the N7010A
Cleaning the N7010A
Disconnect the N7010A from the oscilloscope and clean the N7010A with a soft
cloth dampened with a mild soap and water solution. Make sure that the N7010A
is completely dry before reconnecting it to an oscilloscope. Avoid using abrasive
cleaners and chemicals containing benzene or similar solvents.
N7010A User’s Guide 17
1 General Information
NOTE
NOTE
Returning the Product for Service
If the N7010A is found to be defective we recommend sending it to an authorized
service center for all repair and calibration needs. Perform the following steps
before shipping the probe back to Keysight Technologies for service.
1 Contact your nearest Keysight sales office for information on obtaining an RMA
number and return address.
2 Write the following information on a tag and attach it to the malfunctioning
equipment.
• Name and address of owner
• Product model number (for example, N7010A)
• Product Serial Number (for example, USXXXXXXXX)
Figure 7 Location of Serial Number
• Description of failure or service required.
Include probing and browsing heads if you feel the probe is not meeting performance
specifications or a yearly calibration is requested.
3 Protect the probe by wrapping in plastic or heavy paper.
4 Pack the probe in the original carrying case or if not available use bubble wrap or
packing peanuts.
5 Place securely in sealed shipping container and mark container as "FRAGILE".
If any correspondence is required, refer to the product by serial number and model number.
18 N7010A User’s Guide
Contacting Keysight Technologies
For technical assistance, contact your local Keysight Call Center.
• In the Americas, call 1 (800) 829-4444
• In other regions, visit http://www.keysight.com/find/assist
• Before returning an instrument for service, you must first call the Call Center at
1 (800) 829-4444.
General Information 1
N7010A User’s Guide 19
1 General Information
20 N7010A User’s Guide
Keysight N7010A Active Termination Adapter
User’s Guide
2 Specifications and
Characteristics
Specifications and Characteristics 22 N7010A Dimensions 26
The tables in this chapter list the specifications and characteristics for the N7010A
adapter. Bandwidth and input resistance at DC are warranted specifications for
the N7010A.
Connect the N7010A to a powered-on oscilloscope for at least 20 minutes before
any testing to allow the adapter to warm up. Ensure that the environmental
conditions do not exceed the adapter’s specified limits.
21
2 Specifications and Characteristics
Specifications and Characteristics
Table 2 Electrical Specifications and Characteristics
Item Characteristics
Bandwidth (–3 dB)
Rise time (10% — 90%) 14.5 ps
Attenuation ratio 1.16:1
Noise with oscilloscope Refer to “N7010A’s Low Noise Floor" on page 11.
V
range –4V to +4V
term
V
accuracy ±2 mV
term
V
range –4V to +4V
offset
Input signal range –0.6V ≤ (Vin – V
Input resistance at DC
*
*
> 30 GHz (warranted), >32 GHz (typical)
) ≤ +0.6V
term
50W ± 3%
Maximum non-destructive input voltage ±8V DC to 50 kHz, 5V
* Warranted specification.
above 50 kHz
rms
Table 3 Environmental Specifications
Description Specification
Temperature Operating: –10 °C to +55 °C
Non-operating: –30 °C to +70 °C
Altitude Operating: 3,000 m (9,842 feet)
Non-operating: 15,300 m (50,196 feet)
Humidity Operating: 25 – 85% room humidity
Non-operating: 25 – 85% room humidity
Pollution Degree Pollution Degree 2
22 N7010A User’s Guide
Specifications and Characteristics 2
Table 4 N7010A Safety and Regulatory Information
Description
CAT I Measurement Category I (CAT I). Measurement category I is for measurements performed on circuits not
directly connected to a mains supply. For example, measurements in circuits not derived from a mains
supply and specially protected (internal) circuits derived from a mains supply. In the latter case, transient
stresses are variable. For that reason, it is required that the transient withstand capability of the equipment is
made known to the user.
This symbol indicates the Environmental Protection Use Period (EPUP) for the product’s toxic substances for
the China RoHS requirements.
The CE mark is a registered trademark of the European Community. ISM GRP 1-A denotes the instrument is
an Industrial Scientific and Medical Group 1 Class A product. ICES/NMB-001 indicates product compliance
with the Canadian Interference-Causing Equipment Standard.
This product complies with the WEEE Directive (2002/96/EC) marking requirements. The affixed label
indicates that you must not discard this electrical/electronic product in domestic household waste. Product
Category: With reference to the equipment types in the WEEE Directive Annex I, this product is classed as a
“Monitoring and Control instrumentation” product. Do not dispose in domestic household. To return
unwanted products, contact your local Keysight office, or refer to www.keysight.com for more information.
N7010A User’s Guide 23
2 Specifications and Characteristics
Figure 8 Typical N7010A Bandwidth
24 N7010A User’s Guide
Specifications and Characteristics 2
Figure 9 N7010A Typical Input Return Loss
N7010A User’s Guide 25
2 Specifications and Characteristics
N7010A Dimensions
Figure 10 N7010A Dimensions with Connector Saver
26 N7010A User’s Guide
Keysight N7010A Active Termination Adapter
CAUTION
CAUTION
NOTE
NOTE
User’s Guide
3 Performance Verification
Test 1. Bandwidth 28
Test 2. Input Resistance at DC 34
Performance Test Record 37
This chapter tests that the N7010A meets its specified bandwidth and input
resistance at DC
Electrostatic discharge (ESD) can quickly and imperceptibly damage or destroy high
performance probes, resulting in costly repairs. Always wear a wrist strap when handling
probe components and ensure that cables are discharged before being connected.
Ensure that the input voltage to the oscilloscope never exceeds ±4V.
Allow the N7010A termination adapter to warm up for at least 20 minutes.
Let the oscilloscope warm up before testing. The oscilloscope under test must be warmed up
(with the oscilloscope application running) for at least 30 minutes prior to the start of any
performance test.
27
3 Performance Verification
Test 1. Bandwidth
Bandwidth for the N7010A Active Termination Adapter is specified when used
with a Keysight Infiniium Oscilloscope that has a 32 GHz bandwidth. The
procedure in this section is very similar to the procedure described in the service
manual for any of the 32 GHz Infiniium oscilloscopes except that the bandwidth
need only be tested at the oscilloscope’s 50 mV/div setting.
This procedure tests that the bandwidth of the N7010A and oscilloscope
combination is not more that –3 db at 30 GHz.
Recommended Test Interval
The recommended test interval is 1 year.
Tab le 5 Required Test Equipment
Test Equipment Critical Specification Model Number
Oscilloscope Supported Oscilloscope Infiniium 90000Q series, V series, and Z
series oscilloscopes.
Microwave CW Generator Maximum Frequency ≥ 32 GHz
Power range: –20 dBm to +16 dBm into 50Ω
Output resistance = 50Ω
Power Splitter Two Resistor Power Splitter
Maximum frequency ≥ 30 GHz
Power Meter Keysight P-series with power sensor compatibility Keysight N1912A
Power Sensor Maximum Frequency ≥ 30 GHz
Power range: –24 dBm to +23 dBm
Microwave Cable 50Ω Characteristic Impedance
2.4 mm (m) to 2.4 mm (m) SMA connectors
Maximum frequency ≥ 30 GHz
Adapter 2.4 mm (m) to 3.5 mm (m) (qty. 1) Keysight 11901A
Adapter 2.4 mm (m) to 3.5 mm (f) (qty. 1) Keysight 11901C
Connector Saver 3.5 mm (f)-(f), shipped with and attached to the
N7010A.
Keysight E8257D with Opt 540 or
Opt 567
Keysight 11667C
Keysight N1922A
Keysight N5180-60204
Keysight 5061-5311
28 N7010A User’s Guide
Procedure
1 Turn on the power meter and preset the power meter.
2 Ensure that the power sensor is disconnected from any source and zero the power
3 Connect the power sensor to the power meter's Power Ref connector and
4 Set up the power meter to display measurements in units of Watts.
5 Connect the test setup as shown in Figure 11. Do not use any additional cabling or
Performance Verification 3
meter.
calibrate the meter.
adapters.
a Remove any connector saver that is installed on the oscilloscope’s
Channel 1.
b Connect the N7010A to Channel 1. The N7010A should have its supplied
3.5 mm connector saver installed.
Figure 11 Bandwidth Test Setup
N7010A User’s Guide 29
3 Performance Verification
c Use an 11901A adapter to connect the N7010A to one of the 11667C power
d Use an 11901C adapter to connect the power sensor to the power splitter’s
e Connect the microwave cable to the power splitter’s input.
f Tighten all 2.4 mm and 3.5 mm connectors to 8 in-lbs (90 N-cm).
6 On the oscilloscope, press [Default Setup] and configure the following settings:
Channel 1: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ON
Channels 2, 3, 4: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF
Vertical scale (Channel 1): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 mV/div
Horizontal scale: . . . . . . . . . . . . 16 ns/div (display 8 cycles of a 50 MHz waveform)
splitter’s outputs.
remaining output.
Figure 12 Oscilloscope horizontal scale entry
7 Select Setup > Acquisition and then set up the acquisition parameters as follows:
Sin(x)/x Interpolation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto
Averaging: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disabled
Analog Memory Depth:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Automatic
Analog Sampling rate: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80 GSa/s (maximum)
8 Click Measure > Add Measurement.
9 In the Add Measurement dialog box, select the Vertical RMS measurement as
shown in Figure 13 on page 31.
10 In the dialog box, configure the measurement as follows:
Source: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Channel 1
Measurement Area:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entire Display
RMS Type: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AC
30 N7010A User’s Guide
Performance Verification 3
NOTE
V
in
P
meas
50Ω×=
Figure 13 Enter Measurement Info window
11 Set the microwave CW generator to the following settings:
Waveform:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sine wave
Frequency:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 MHz
Amplitude:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4 V
(–4 dBm)
p-p
If your microwave CW generator is unable to produce the recommended amplitude (about 4
on-screen divisions peak-to-peak), then set the generator to the highest value that does not
produce a vertically clipped signal on the scope.
12 The power meter reads the input power to the scope channel. Convert this
measurement to V
meter reading is 4.0 μW, then V
13 Record the V
in
using the following expression. For example, if the power
rms
= (4.0 x 10-6 X 50Ω)
in
1/2
= 14.1 mV
rms
value here and in Table 7 on page 37 as Vin at 50 MHz.
V
at 50 MHz: ______________
in
N7010A User’s Guide 31
.
3 Performance Verification
Gain
50 MHz
V
out @50 MHz
V
in @50 MHz
-----------------------------------
=
V
in
P
meas
50Ω×=
14 On the oscilloscope, press [Clear Display] and locate the oscilloscope’s Mean V
rms
reading, which is labeled “Mean” in the Measurements display area at the bottom
of the screen. Record this value here and in Table 7 on page 37 as V
V
at 50 MHz: ______________
out
at 50 MHz.
out
15 Calculate the reference gain at 50 MHz using the following expression. Record this
value here and in Table 7 on page 37 as the Calculated Gain at 50 MHz.
Gain at 50 MHz: ______________
16 Change the microwave generator’s frequency to 30 GHz.
17 Change the oscilloscope’s horizontal scale to 50 ps/div as shown in Figure 14 on
page 32.
Figure 14 Change Horizontal Scale to 50 ps/division
18 The power meter reads the input power to the scope channel. Convert this
measurement to V
meter reading is 4.0 μW, then V
32 N7010A User’s Guide
using the following expression. For example, if the power
rms
= (4.0 x 10-6 x 50Ω)
in
1/2
= 14.1 mV
rms
.
Performance Verification 3
Gain
30 GHz
20 log
10
V
out @ 30 GHz
()V
in @ 30 GHz
()⁄
Gain
50 MHz
-------------------------------------------------------------------------------------
=
Gain
30 GHz
20 log
10
13.825 mV 13.461 mV ⁄
1.0023
-----------------------------------------------------------------
0.212 dB==
19 Record the V
rms voltage in Table 7 on page 37 as Vin at 30 GHz.
in
V
at 30 GHz: ______________
in
20 On the oscilloscope, press [Clear Display] and record the “Mean” measurement
value in Table 7 on page 37 as V
at 30 GHz.
out
V
at 30 GHz: ______________
out
21 Calculate the gain at the maximum frequency using the following expression. The
gain at 50 MHz was calculated in step 15 and recorded in Ta ble 7 on page 37 as
the Calculated Gain at 50 MHz.
For example, if
V
@ 30 GHz = 13.825 mV,
out
Vin @ 30 GHz = 13.461 mV, and
Gain @ 50 MHz = 1.0023, then:
22 Record this value here and in Table 7 on page 37 as the Calculated Gain at
30 GHz. To pass this test, this value must be greater than -3.0 dB.
Gain at 30 GHz: ______________
N7010A User’s Guide 33
3 Performance Verification
Test 2. Input Resistance at DC
Recommended Test Interval
The recommended test interval is 1 year.
Tab le 6 Required Test Equipment
Test Equipment Model Number
Oscilloscope 90000X series Infiniium Oscilloscope. (Or other Infiniium
Digital voltmeter Keysight U1272A or any equivalent DVM with similar or better
SMA (m) to BNC (f) adapter Example: Pasternack PE9074 or equivalent
BNC coax Keysight U2921A-100 or Pasternack PE3067 or any equivalent
BNC (f) to Banana Plug adapter Pasternack PE9008 or equivalent
Oscilloscope with an AutoProbe II active probe interface.
accuracy.
BNC coax.
Procedure
1 Power up the Infiniium oscilloscope and after it boots up attach the N7010A to
channel 1. Confirm that the 3.5 mm to 3.5 mm connector saver is attached to the
N7010A’s input (this connector saver is supplied with the N7010A).
2 On the oscilloscope, press [Default Setup].
3 In the Probe Configuration menu for Channel 1, select Options for the N7010A
block and make sure that the Termination Voltage is set to zero.
4 Connect the BNC cable to the N7010A using the SMA (m) to BNC (f) adapter as
shown in Figure 15 on page 35.
5 Connect the remaining end of the BNC cable to the BNC (f) to banana plug
adapter.
6 Set the DVM for 2 wire ohms and auto ranging.
34 N7010A User’s Guide
Figure 15 Input Resistance at DC Test Setup
Average Input Resistance
R
aRb
+
2
-------------------
=
Performance Verification 3
7 Connect the banana plug to the DVM in either orientation. Record the measured
input resistance:
Input resistance (R
8 Reverse the banana plug connection to the DVM. Record the measured input
resistance:
Input resistance (R
9 Calculate the average input resistance using the following expression, and record
this value here and in Table 8 on page 37.
Average Input Resistance: ______________
N7010A User’s Guide 35
): ______________
a
): ______________
b
3 Performance Verification
48.5Ω Average Input Resistance 51.5Ω≤≤
The average input resistance must meet the 50 ohm ±3% specification:
36 N7010A User’s Guide
Performance Test Record
Serial #:
Date:
Tested by:
Recommended Next Test Date:
Tab le 7 Results for Test 1. Bandwidth
Performance Verification 3
Test Frequency
50 MHz
30 GHz
Vin
(Read on Power Meter)
V
out
(Read on Oscilloscope) Calculated Gain (Test Limit ≥ –3 dB)
Tab le 8 Results for Test 2. Input Resistance at DC
Tes t Test Limits Result
Average Input Resistance 48.5Ω ≤ measured ≤ 51.5Ω
N7010A User’s Guide 37
3 Performance Verification
38 N7010A User’s Guide
Index
A
accessories
static-safe, 12
supplied, 7
altitude, 22
attenuation ratio, 11
B
bandwidth (typical), 24
C
care, N7010A, 5
CAT I, 23
CE mark, 23
cleaning, 17
compatible oscilloscopes, 6
connector saver, 7
connector, input, 6
D
dimensions, N7010A, 26
E
electrical specifications, 22
electrostatic discharge (ESD), 12
environmental specifications, 22
ESD Workstation, 13
F
firmware version, oscilloscope, 6
function diagram, 8
H
humidity, 22
I
input
connector, 6
maximum voltage, 5
return loss (typical), 25
specified torque, 7
inspecting, 17
K
Keysight Technologies, contacting, 19
L
low frequency input, maximum, 8
M
maximum AC voltage, 10
maximum input voltage, 5
measurement category, 23
N
N7010A
cable care, 5
dimensions, 26
graph of typical bandwidth, 24
graph of typical input return loss, 25
inspecting, 17
noise contribution, 11
service, 18
O
operation, 8
oscilloscope
compatibility, 6
firmware version, 6
P
performance test record, 37
performance verification, 27
Probe Dialog Box, 9
R
repair, 18
returning for service, 18
S
safety, 14
Considerations, 14
specifications, 23
warnings, 14
serial number, location, 18
service, 18
specifications
and characteristics, 21
specified input torque, 7
static-safe accessories, 12
T
temperature, 22
U
using, 8
W
WEEE Directive, 23
N7010A User’s Guide 39
Index
40 N7010A User’s Guide
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