Keysight N7010A User manual
Keysight N7010A
Active Termination Adapter
User’s Guide
2N7010A User’s guide
Notices
© Keysight Technologies, Inc. 2015-2016,
2020
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation into
a foreign language) without prior agreement
and written consent from Keysight Technolo-
gies, 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
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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. Key-
sight shall not be liable for errors or for inci-
dental or consequential damages in
connection with the furnishing, use, or per-
formance of this document or of any infor-
mation contained herein. Should Keysight
and the user have a separate written agree-
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material in this document that conflict with
these terms, the warranty terms in the sepa-
rate 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 accor-
dance with the terms of such license.
Restricted Rights Legend
U.S. Government Rights. The Software is
"commercial computer software," as
defined by Federal Acquisition Regula-
tion ("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
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Accordingly, Keysight provides the Soft-
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under its standard commercial license,
which is embodied in its End User
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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 com-
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software documentation that is not cus-
tomarily provided to the public; or (2)
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Software. With respect to any technical
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defined in FAR 27.401 or DFAR
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technical data.
Safety Notices
CAUTION
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.
WARNING
A WARNING notice denotes a haz-
ard. It calls attention to an operat-
ing 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.
N7010A User’s guide 3
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
4N7010A User’s Guide
Contents
5
Keysight N7010A Active Termination Adapter
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 (Vterm) and extremely low
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.
CAUTION
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.
CAUTION
The maximum allowable input to the N7010A is ±4V.
6N7010A User’s Guide
1General Information
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 50ΩAutoProbe II interface channel
inputs. The AutoProbe II interface also provides power to the probe.
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.
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
NOTE
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.
General Information 1
N7010A User’s Guide 7
Figure 1 N7010A with Supplied Connector Saver
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.
CAUTION
Torque all cables and adapter connections to the 2.9 mm connector to 8 in-lbs
(90 N-cm).
CAUTION
Torque all cables and adapter connections to the 3.5 mm connector saver to 8 in-lbs
(90 N-cm).
8N7010A User’s Guide
1General Information
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 Voff and
Vterm controls are supplied from the oscilloscope via the AutoProbe II connector.
Figure 2 Simplified Function Diagram
Vterm Control
The Vterm control is used to allow the 50 ohm input of the N7010A to be
terminated to a voltage rather than to ground, which is required by some devices
under tests (DUTs). Vterm can be set anywhere from –4V to +4V, however Vin must
never be more than 0.6V away from Vterm.
To set the Vterm voltage, perform the following steps on the oscilloscope:
1Click Setup > Probe Configuration to open the Probe Configuration dialog box.
CAUTION
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.
General Information 1
N7010A User’s Guide 9
2Select the N7010A tab.
3In the dialog box’s Probe System field, click Options to open the Probe dialog box.
4Set the Termination Voltage.
Figure 3 Probe Dialog Box
Voff Control
The Voff control allows the N7010A to subtract the DC voltage component from Vin
thereby allowing the N7010A output to be centered around ground.
To set the Voff control, perform the following steps on the oscilloscope:
1Click Setup > Probe Configuration to open the Probe Configuration dialog box.
2Select the N7010A tab.
3In the dialog box’s Probe System field, click Probe Offset and enter the required
offset voltage.
10 N7010A User’s Guide
1General Information
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 Vpp) occurs when Vin is centered on
Vterm and Voff is adjusted to remove the DC component of Vin, which means the
signal into the oscilloscope is centered around ground.
600 mV–Vinput Vtermination
–()+600 mV≤≤
NOTE
Vin is the voltage at the input of the N7010A. If the source driving the N7010A has a non-zero
output impedance then Vterm will interact with Vin.
CAUTION
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 5Vrms (which is 0.5W into 50 ohms).
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