Teledyne Lecroy HDA125 User manual

Operator's Manual
HDA125 High-speed
Digital Analyzer

HDA125 High-speed
Digital Analyzer
Operator's Manual
August, 2016

HDA125 High-speed Digital Analyzer Operator's Manual
© 2016 Teledyne LeCroy, Inc. All rights reserved.
Unauthorized duplication of Teledyne LeCroy documentation materials other
than for internal sales and distribution purposes is strictly prohibited. However,
clients are encouraged to distribute and duplicate Teledyne LeCroy
documentation for their own internal educational purposes.
HDA125, WaveSurfer, WaveRunner, WavePro, WaveMaster, LabMaster, and
Teledyne LeCroy are trademarks of Teledyne LeCroy, Inc. Other product or brand
names are trademarks or requested trademarks of their respective holders.
Information in this publication supersedes all earlier versions. Specifications are
subject to change without notice.
927294-00 Rev A
August, 2016

Operator’s Manual
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Contents
Introduction.............................................................................................................................. 1
Safety........................................................................................................................................ 2
Technical Overview.................................................................................................................. 4
HDA125 Set Up ........................................................................................................................ 5
Standard Parts.................................................................................................................. 5
Oscilloscope Software ..................................................................................................... 5
Handling the Digital Leadset ........................................................................................... 6
Order of Operations.......................................................................................................... 6
Connecting the Digital Leadset ....................................................................................... 7
Connecting HDA125 to the Oscilloscope........................................................................ 8
Connecting QL-SI Tips to the Digital Leadset............................................................... 10
Connecting QL-SI Tips to the QuickLink Adapter ......................................................... 11
Deskewing....................................................................................................................... 12
Digital Setup........................................................................................................................... 16
Digital Logic Setup ......................................................................................................... 16
Digital Group Setup ........................................................................................................ 17
Renaming Digital Lines .................................................................................................. 18
Displaying Digital Traces ............................................................................................... 18
Digital Triggering.................................................................................................................... 20
Accessing the Trigger Dialogs....................................................................................... 20
Edge Trigger.................................................................................................................... 20
Pattern Trigger................................................................................................................ 21
Maintenance........................................................................................................................... 23
Cleaning .......................................................................................................................... 23
Calibration....................................................................................................................... 23
Firmware Updates .......................................................................................................... 23
Technical Support .......................................................................................................... 24
Returning a Product for Service...................................................................................... 25
Certifications.......................................................................................................................... 26
Warranty ................................................................................................................................. 29
Contact Us.............................................................................................................................. 30
Notes ...................................................................................................................................... 31

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Welcome
Thank you for purchasing a Teledyne LeCroy HDA125 High-speed Digital
Analyzer.
The HDA125 is a powerful solution for the challenge of measuring multiple,
mixed signals in a single oscilloscope. An accessory for the Teledyne LeCroy Zi
series oscilloscopes, the HDA125 extends their testing range by adding 9 or 18
digital channels for waveform display or triggering.
This manual assumes that you have a basic understanding of discrete
electronics, logic analyzers, and Teledyne LeCroy oscilloscopes, specifically the
model you will use with the HDA125. When necessary, details on specific
oscilloscope features are included in this manual.
Contact your nearest Teledyne LeCroy customer service center or national
distributor if anything is missing or damaged. We can only be responsible for
replacement if you contact us immediately.
Sincerely,
David C. Graef
Vice President and General Manager, Oscilloscopes

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1
Introduction
The HDA125 High-speed Digital Analyzer is a complete system that adds digital
acquisition and triggering capabilities to Teledyne LeCroy Zi series oscilloscopes.
The HDA125 is optimized for acquiring high-speed digital signals, with a sample
rate of 12.5 GS/s on all 18 input channels. Accurate digital interpretation of high-
frequency analog signals is ensured by the high input sensitivity (150 mV
minimum signal swing) and low-loading, oscilloscope-style QuickLink probing
system.
The HDA125 is ideally suited for embedded system testing where there is a
proliferation of analog signals coincident with digital signals. You can easily
debug signals using standard oscilloscope tools such as cursors, measurement
parameters, and zooming.
Oscilloscopes compatible with the HDA125 feature large, bright color displays
to facilitate signal viewing, plus all the connectivity and documentation
capabilities needed to quickly record and distribute information.
Compatibility
The HDA125 is compatible with LabMaster 9 Zi and 10 Zi systems,
WaveMaster 8 Zi, WavePro 7 Zi, and WaveRunner 6 Zi series oscilloscopes
equipped with LBUS.
It is not compatible with WaveRunner 8000, HDO, MDA, WaveSurfer 3000 or
other legacy model oscilloscopes.
Specifications
Detailed specifications are listed on the product datasheet at
teledynelecroy.com. Specifications are subject to change without notice.
Operating Environment
Temperature: 5 to 40 °C
Humidity: Maximum relative humidity 80% (non-condensing) for
temperatures up to 31° C, decreasing linearly to 50% relative
humidity at 40° C
Altitude: Up to 2,000 m

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Safety
Observe these instructions to keep the product operating in a correct and safe
condition. Follow generally accepted safety procedures in addition to the
precautions specified here. The overall safety of any system incorporating this
product is the responsibility of the assembler of the system.
Symbols
These symbols appear on the product or in its documentation to alert you to
important safety considerations.
CAUTION of potential damage to product, or WARNING of potential
bodily injury. Attend to the accompanying information to protect against
injury or damage. Do not proceed until conditions are fully understood
and met.
High-voltage WARNING. Risk of electric shock or burn.
Electrostatic discharge (ESD) hazard CAUTION. Contains parts and
assemblies susceptible to damage if anti-static measures are not taken.
Measurement ground connection.
Safety (protective) ground connection.
Alternating current.
Direct current.
Precautions
Use proper power supply adapter. Use only the AC adapter shipped with this
instrument. Using an alternate AC adapter can potentially damage the instrument
due to pin out variations among external AC adapters.
Use proper power cord. Use only the power cord shipped with this instrument and
certified for country of use.
Maintain ground. This product is grounded through the power cord grounding
conductor. To avoid electric shock, connect the external AC adapter only to a

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grounded mating outlet.
Connect and disconnect properly. Do not connect/disconnect probes or test leads
while they are connected to a live voltage source.
Exercise electrostatic discharge (ESD) precautions.The digital leadsets and probe
tips are sensitive to ESD. When making connections to the device under test,
always wear a grounding wrist strap.
Handle with care. Avoid putting excessive strain on any cable or probe tips. Avoid
bending cables sharply. Prevent damage to the solder-in probe tips by carefully
storing them in the plastic protective storage case when not in use.
Observe all terminal ratings. Do not apply a voltage to any input that exceeds the
maximum rating of that input. Refer to the front of the instrument for maximum
input ratings.
Use indoors only. The accessory is intended for indoor use and should be
operated in a clean, dry, environment. Do not use in wet/damp or explosive
atmospheres.
Keep product surfaces clean and dry. See Cleaning on p.23 for instructions.
Do not block the cooling vents.
Do not remove the covers or inside parts. Refer all service to qualified service
personnel.
Do not operate with suspected failures. Do not use the product if any part is
damaged. Obviously incorrect measurements behaviors might indicate
impairment due to hazardous live electrical quantities. Cease operation
immediately and sequester the instrument from inadvertent use.
Cooling
The instrument relies on forced air cooling with internal fans and vents. Internal
fan control circuitry regulates the fan speed based on the ambient temperature.
This is performed automatically after start up.
Take care to avoid restricting the air flow to any part of the instrument. Around
the sides and rear, leave a minimum six-inch (15 cm) gap between the
instrument and the nearest object. The feet provide adequate bottom clearance.
Do not block the cooling vents. Always keep the area beneath the
instrument clear of paper and other objects.

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Technical Overview
The HDA125 is an external device that digitally samples waveform data at up to
12.5 GS/s (enabling acquisition of digital signals up to 6 Gb/s). Unlike a logic
analyzer, it operates only in a Timing Analysis mode, so it requires oversampling
to determine the correct digital edge position, and does not require the user to
input a clock.
While in SINGLE or NORMAL, trigger mode, the HDA125 repeatedly samples
each digital channel’s voltage level. If the voltage is greater than the threshold
voltage, the HDA125 stores a 1 in internal memory. Otherwise, a 0 is stored.
The threshold voltage at which a signal is classified as a digital 0 or 1 value is
set by the user – the value can range from -5V to +5V with 5mV setting
resolution. A hysteresis control is also available, with a minimum value of 50mV
(for very fast signals) and a maximum value of 600mV (for very noisy signals).
Digital signals can also be deskewed to accommodate staggered probing
configurations. All of these adjustments can be made on a per-channel basis.
The HDA125 keeps sampling its inputs until the oscilloscope is put into STOP
trigger mode. Data is stored in internal memory that is periodically transferred
to the oscilloscope via the USB3.1 cable. If the oscilloscope is triggering in
SINGLE or NORMAL trigger mode, data is acquired and transferred only when
the trigger condition is satisfied. The captured data is then displayed on the
oscilloscope grid in a time-aligned fashion.
The HDA125 both samples incoming data and searches for trigger conditions.
The USB3.1 cable provides downloading of trigger conditions from the
oscilloscope to the HDA125 and uploading of digital data from the HDA125 to
the oscilloscope.

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HDA125 Set Up
Standard Parts
The HDA125 is delivered as either a 9-channel kit or an 18-channel kit with the
following hardware.
Parts HDA125-18-
LBUS
HDA125-09-
LBUS
HDA125-18-
SYNC
HDA125-09-
SYNC
HDA125 High-speed Digital Analyzer 1 1 1 1
HDA-DLS-18QL 18-channel Digital Leadset 1 0 1 0
HDA-DLS-18QL 9-channel Digital Leadset 0 1 0 1
QuickLink Solder-in Tips (QL-SI) 18 9 18 9
LBUS Cable 1 1 0 0
SYNC Cable 0 0 1 1
BNC Cable 0 0 1 1
USB3 Cable 1 1 1 1
Power Cable 1 1 1 1
PCF200 Deskew Fixture 1 1 1 1
Replacement Tip Resistors 10 5 10 5
Adhesive Pads 40 20 40 20
QuickLink Tip Labels 40 20 40 20
Oscilloscope Software
The HDA125 requires version 8.1.x.x or higher of the oscilloscope system
software in order to be correctly recognized. We always recommend using the
latest version of software on your oscilloscope, available for free at:
teledynelecroy.com/support/softwaredownload

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Handling the Digital Leadset
Exercise care when handling and storing the digital leadset and QuickLink
solder-in tips. Avoid putting excessive strain on any cable or interconnect lead
or bending the cables sharply. Store the solder-in probe tips in the plastic
protective storage case when not in use.
The digital leadset and probe tips are sensitive to Electrostatic
Discharge (ESD). Avoid causing damage by always following anti-static
procedures (wear wrist strap, etc.) when using or handling the
equipment.
Order of Operations
To ensure that all components (HDA125 and leadset) are correctly identified by
the system software, the following order of operations is recommended:
1. Close the oscilloscope application, or shut down the oscilloscope.
2. Connect the digital leadset to the HDA125.
3. Connect the HDA125 to the oscilloscope.
4. Power up the HDA125.
5. Launch the oscilloscope application (or power up the oscilloscope if it
was powered down).

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Connecting the Digital Leadset
Connect the digital leadset to the digital input on the front of the HDA125. Push
the connector until it “snaps” into place.
When removing the leadset, press the tabs on both sides of the connector head,
then pull out.
Press in tabs to remove the digital leadset.

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Connecting HDA125 to the Oscilloscope
Oscilloscopes with an LBUS Interface
Connect the LBUS cable from the LBUS connector on the back of the HDA125 to the
LBUS connector on the back of the oscilloscope. Be sure the head is turned so
that the wedge fits into the groove at the top of the connector. Fasten the
thumb screws.
Connect the USB3 cable into USB ports on both instruments.
NOTE: The USB3 cable will work on oscilloscopes with USB2 ports, but the
transfer speed will be reduced. We recommend using the rear USB3 ports on
WaveMaster 8 Zi-B oscilloscopes.
Connect the power cable to DC IN and plug it into a grounded outlet.
Back of HDA125 with cables attached

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Oscilloscopes with a ChannelSync Interface
The ChannelSync interface is used to connect the HDA125 to LabMaster
systems.
NOTE: In systems based on the LabMaster Master Control Module, be sure to
connect at least one Acquisition Module to the MCM Zi (as described in the
LabMaster Operator’s Manual) before connecting the HDA125.
1. Connect the SYNC cable from the first available SYNC connector on the
LabMaster MCM Zi to the SYNC connector on the HDA125.
2. Connect the BNC cable from the “REF OUT 10 MHz” connector on the
back of the MCM Zi to the “REF IN/OUT” connector on the back of the
HDA125.
3. Connect the USB3 cable into USB ports on both instruments.
4. Connect the power cable to DC IN and plug it into a grounded outlet.

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Connecting QL-SI Tips to the Digital Leadset
Solder the QL-SI tips to the device under test, then insert the connector head of
the tip into the leadset pod, matching the tip color to the port color.
Inserting QL-SI tips into the digital leadset pod.
The tips use five repeating colors. You can change the color-coding clips on the
tips if desired to switch them into different ports after soldering.
For 9 channels, connect five tips to one pod and four tips to the other pod.
For 18 channels, repeat the sequence using all four pods.

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Connecting QL-SI Tips to the QuickLink Adapter
Any QL-SI tip can be connected to a WaveLink™ Low-bandwidth or Medium-
bandwidth Modular Differential Probe using the QuickLink™ Adapter (sold
separately from the HDA125) in order to view the signal as an analog waveform.
There is no need to remove the tip from the device under test; just remove the
QL-SI connector head from the digital leadset pod and insert it into the
QuickLink Adapter.
Switching a QL-SI tip to a WaveLink probe using the QuickLink Adapter.

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Deskewing
Before using the HDA125, it is crucial to deskew the signal path to ensure
proper signal timing.
Since the HDA125 is typically used in embedded applications, it is assumed that
it will be used in conjunction with differential analog probes capturing signals
on the oscilloscope’s analog channels. The deskew procedure outlined here is
optimized for this use-case, but can be easily adapted for other situations.
Note that for the same reasons, the default “reference plane” for signals
acquired by the HDA125 corresponds to the nominal propagation delay of a
Teledyne LeCroy WaveLink probe. This means that only fine-grained deskew
should be necessary when the HDA125 is being used in conjunction with
WaveLink probes.
Required Equipment
•WaveLink probe(s)
•PCF200
•50 Ω terminator
NOTE: Alternatively, an LPA-K-A adapter and an SMA cable can be used
to terminate the PCF200 into an available oscilloscope channel.

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Methodology
Before beginning, warm the oscilloscope for at least 20 minutes.
1. Set the V/div and offset of the analog channels appropriately for the
signal to be acquired. On the Channel Probe dialog, be sure to make the
correct selection for the tips you are using.
2. Connect the upper signal path of the PCF200 (with the black clip) to the
oscilloscope’s Fast Edge output.
3. Attach a QL-SI tip (not already attached to your test board) to the
PCF200 by placing the solder-in tips under the clip. The positive side
must be connected to the signal trace (in between the two white strips),
while the negative side is connected to the ground plane (outside of the
white strips). The positive polarity is indicated on the tip by a plus sign.
4. Apply a 50 Ω terminator to the end of the upper signal path. If a 50 Ω
terminator is not available, an SMA cable can be used to terminate the
PCF200 to one of the oscilloscope’s outputs.
5. Connect the QL-SI tip to one of the empty slots in the HDA125
connector pods.
6. Go to Vertical > Digital1 Setup and create the Digital1 group with only
the line that you connected to the PCF200. Turn on the Digital1 Line
display. See the procedures later in this manual for instructions.
7. On the Logic Setup tab, set the line’s Threshold to -100 mV.
8. Touch the Trigger descriptor box to open the Trigger dialog. Set the
oscilloscope Trigger Type to “Edge”, the Trigger Source to “FastEdge”.

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9. Touch the Timebase descriptor box to open the Timebase dialog. Adjust
the timebase to about 2 ns/div so that a rising or falling edge can be
seen on screen. Set timebase Delay to 0.
Once everything is properly set up, the oscilloscope display should look
similar to the figure below.
10. Touch the Digital1 descriptor box to open the Digital1 dialog, then touch
Store to save the FastEdge trace to memory.
11. Disconnect the HDA125 connector pod from the PCF200 adapter, and
connect the first probe to be deskewed.