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
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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
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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)
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from all providers of commercial computer software pursuant to the FAR and
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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.
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