Engineered for precision and speed, the T3SP15D, T3SP15D XR, and
T3SP01D redefine how you measure signal integrity on PCBs and
cables. With calibrated differential TDRs, they deliver ultra
fast, high resolution characteristic impedance profile analysis,
both single ended and differential. Lightweight, compact, and
optionally battery powered, these instruments fit seamlessly
into any environment: lab, quality control, production, or field
True Differential and Calibrated TDR for
Maximum Impedance Measurement Accuracy
Compact, Battery-Powered Design for true portability
30 ps Typical Rise Time, S-Parameter support up to
15 GHz (15D and 15D-XR models)
260 ps Typical Rise Time, S-Parameter support up to 1.25 GHz
(01D model)
50,000-point memory supporting DUT lengths up to 30 m (15D), 50
m (15D-XR) and 1 km (01D)
Automatic Ohmic Loss Compensation for enhanced
accuracy
Built-in Skew Analysis (Inter-Pair and
Intra-Pair) for differential signal integrity
XR Series: Engineered for Speed, Optimized for
Continuous Cable Production
01D model: Engineered for High-Dynamic Range,
Optimized for 10Base-T1, 100Base-T1 and MIL-Spec RF Cables.
True-Differential TDRs
Most of the modern high-speed designs are
implemented with differential transmission lines. Using a true
differential TDR simplifies the setup for signal integrity measurements
in such designs. In some scenarios the ground connection could be
difficult to connect or not accessible if you want measure unshielded
twisted pair cables. Most of the time, when you take measurements using
a true differential TDR a ground connection is not required and gives
you the flexibility to use TDR-probes without a ground connection.
TDR repetition rates by model: 10 MHz–40
kHz
With repetition
rates up to 10 MHz, the T3SP15D and T3SP15D XR are more than 300 times
faster than conventional TDR instruments based on sampling
oscilloscopes. With repetition rates as low as 40 kHz and a high dynamic
range, the T3SP01D enables measurements over cable lengths up to 1 km,
as well as very fast mode conversion characterization for lower rate
Automotive Ethernet links.
T3SP15-XR models for cable manufacturers
The T3SP15D-XR was
created to provide a better alternative to production than using
obsolete TDRs based on the sampling oscilloscope platform. Four new time
bases were added into T3SP15D-XR, achieving two results. First, the
extension of measurements to cables up to 50 m, and second, the ability
to make very fast acquisitions, which is a key requirement for
production. We added a repetition rate of 500 KHz, suitable for longer
cables, and sampling rates of 20 ps and 40 ps, suitable for ultrafast
acquisition times.
T3SP01D model for High-Dynamic Range
The T3SP01D has a
selectable pulse repetition rate — from 400 kHz down to 50 kHz — to
measure cables up to one kilometer long. Each channel delivers a strong
360-millivolt step with a fast 260-picosecond rise time, providing
excellent mode-conversion analysis for Automotive Ethernet and
Single-Pair Ethernet up to 100 megabits per second. For 10Base-T1S and
100Base-T1 Automotive Ethernet compliance, the T3SP01D delivers
ultra-fast and sensitive MDI Return Loss and Mode Conversion
measurements.
Full Calibrated Impedance Plot
Reference
impedance in all TDR instruments are relative; they are made by
comparing reflected amplitudes to an incident amplitude. Using full
OSLT-calibration the T3SP-series is offering best accuracy for impedance
measurements in time and frequency domain. Using four calibration
standards (open, short, load, thru) for T3SP15D in the time domain
instead of using a simple normalization which is common in
TDR-instruments offers vastly improved error correction for the setup.
Using OSLT calibration in the time domain avoids irregularities in
impedance plots, such as ringing that occurs after the TDR incident
step.
Full calibrated S-Parameter
Many of the modern
standards like Ethernet or USB require you to measure the impedance
matching of the cables and connectors within the frequency domain. These
are the measures commonly made with traditional VNA instruments. The
T3SPseries offers fully calibrated differential S-Parameter measurements
up to 15 GHz (T3SP15D) using the same OSLT-calibration standards used by
VNAs.
Trust, But Test—Your Cables
Might Be Lying
Even premium
cables can hide imperfections that introduce measurement artifacts. The
T3SP Series instantly reveals cable quality, pinpointing out-of-spec
sections caused by damage or defects. With up to 50,000-point
acquisition, the SP Series delivers long, high-resolution TDR
captures—ideal for extended DUTs. Flexible repetition rates from 10 MHz
to 1 MHz support cable lengths up to 30 meters, while XR models extend
this range to 50 meters with rates down to 500 kHz.
ESD-protection
High-frequency
measurement devices are extremely sensitive to electrostatic discharge
(ESD) and can lead to permanent damage to your measurement device. In
addition, many laboratories have a requirement to take special
precautions to protect their electronic equipment from any damage caused
by ESD. The SP-series mitigates this risk by providing a higher degree
of protection from this happening. Every SP-series model comes equipped
with an ESD-protection module based on high-performance coaxial
RF-switches. The ways this works is the RF input circuitry is protected
by isolating the devices RF-signal detector from the input connector
when the device is not being used to take measurements.
S-Parameter Measurements
The high bit rates used in modern electronics
design and future serial data standards extend well into the microwave
region. For example, the High-speed Universal Serial Bus (USB3.1)
supports transfer rates up to 10 GB/s over twisted-pair cables. These
high bit rate transmissions through connectors and cables results in
considerable distortion because of channel dispersion. To keep the
distortion to manageable levels, many standards specify the impedance,
return loss and insertion loss for cables and connectors. These
measurements are represented by the S-parameter. The T3SP series offer
fully calibrated differential S-Parameter measurements up to 15 GHz
(T3SP15D). This gives you the flexibility to store your output files in
a variety of formats (CSV, Matlab and Touchstone) which can be easily
which can be easily used in tools like SI-Studio, Matlab or other
simulation programs.
Impedance Traces on PCBs
Due to increasing clock rates in high speed
digital systems the necessity of controlled impedance Printed Circuit
Boards (PCBs) is growing rapidly. Additionally, cables and connectors
must meet high frequency design specifications and controlled impedance
specifications. The T3SP-series helps you to measure wave impedances of
PCBs, cables, and connectors very accurate and comfortably. In contrast
to other systems on the market, the T3SP-series is designed for
measuring specific traces on a PCB and for on-board tests, the
TDR-Probes ensure accurate measurement for qualification testing and
debugging assembled PCBs.
In this webinar, you will learn how to interpret
a TDR’s measured instantaneous impedance profile
in terms of the interconnect’s characteristic
impedance and time delay, and the location of
impedance discontinuities.
In this webinar, Dr. Eric Bogatin will explore
how to think about differential and common
impedance. Based on the properties of a
differential pair, we will look at using a two
port TDR as a differential TDR so we can
characterize the basic differential impedance
properties of the interconnect.
In this webinar, Dr. Eric Bogatin explores how
unshielded twisted pair (UTP) cables have no
adjacent return plane yet can make great
differential interconnects.
In this webinar, Dr. Eric Bogatin shows you how
to analyze interconnects that are not uniform
transmission lines. What does it mean to
characterize a discontinuity? He will introduce
you to the exciting and fun technique of
“hacking interconnects” which anyone can do
using a free and open source simulation tool
which is provided.
A TDR can measure much more than just the
impedance profile of a transmission line. In
this webinar, Dr. Eric Bogatin introduce you to
a more advanced instrument to meet your most
demanding needs.
