PMK HSDP Series User manual

Instruction Manual
HSDP Series
High-Speed Differential Probes
with Universal BNC Interface
up to >4GHz, ±42V, 7.5m
Preliminary
DE | EN

HSDP Series Manual
2
Copyright © 2023 PMK - All rights reserved.
Manufacturer
PMK Mess- und Kommunikationstechnik GmbH
Königsteiner Str. 98
65812 Bad Soden, Germany
Tel: [phone]
Internet: www.pmk.de
E-Mail: [e-mail]
Warranty
PMK warrants this product for normal use and operation within specifications for a period of one year
from date of shipment and will repair or replace any defective product which was not damaged by
negligence, misuse, improper installation, accident or unauthorized repair or modification by the buyer.
This warranty is applicable only to defects due to material or workmanship. PMK disclaim any other
implied warranties of merchantability or fitness for a particular purpose. PMK will not be liable for any
indirect, special, incidental, or consequential damages (including damages for loss of profits, loss of
business, loss of use or data, interruption of business and the like), even if PMK has been advised of
the possibility of such damages arising from any defect or error in this manual or product.
Declaration of Conformity
PMK declares the conformity of this product with the actual required safety standards in
accordance with the Low Voltage Directive (LVD) 2014/35/EU:
CEI/IEC 61010-031:2015 - Safety requirements for electrical equipment for
measurement, control and laboratory use
- Part 031:
Safety requirements for hand-held probe assemblies
for electrical measurement and test
WEEE/ RoHS Directives
This electronic product is classified within the WEEE/ RoHS category list as monitoring and
control equipment (category 9) and is compliant to the following EC Directives.
EC Directives:
WEEE Directive 2012/19/EU - Waste Electrical and Electronic Equipment
RoHS Directive 2011/65/EU - Restriction of the use of certain Hazardous Substances in
Electrical and Electronic Equipment
Your help and efforts are required to protect and keep clean our environment. Therefore return this
electronic product at the end of its life either to our Service Department or take care of separate WEEE
collection and professional WEEE treatment yourself. Do not dispose as unsorted municipal waste.

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Table of Contents
Manufacturer........................................................................................................................................................ 2
Warranty............................................................................................................................................................... 2
Declaration of Conformity .................................................................................................................................... 2
WEEE/ RoHS Directives......................................................................................................................................... 2
Safety Information................................................................................................................................................ 4
About HSDP Series................................................................................................................................................ 5
Specifications........................................................................................................................................................ 7
Electrical Specifications................................................................................................................................... 7
Electrical Specifications (Continued) .............................................................................................................. 8
Environmental Specifications .......................................................................................................................... 9
Probe Dimensions ........................................................................................................................................... 9
Factory Calibration .......................................................................................................................................... 9
Typical Frequency Response ......................................................................................................................... 10
Typical Differential Input Impedance ............................................................................................................ 10
Typical Input Voltages ................................................................................................................................... 11
Typical Rise Time........................................................................................................................................... 12
Ordering Information.......................................................................................................................................... 13
Step 1: Select Probe ...................................................................................................................................... 13
Step 2: Select Power Supply .......................................................................................................................... 13
Step 3: Accessories (Continued) ................................................................................................................... 15
Step 4: Select 3D Positioning System ............................................................................................................ 15

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Safety Information
Prevent personal injury, fire and product damage.
To avoid personal injury and to prevent fire or damage to this product or products con-
nected 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. Only qualified personnel should use this probe assembly.
Use only grounded instruments.
Do not connect the differential probe’s ground input to a potential other than earth ground.
Alwaysmake sure the probe and the measurement instrument are grounded properly.
Connect and disconnect properly.
Connect the probe output to the measurement instrument. Optionally connect the
differential probe’s ground input to earth ground before connecting the probe’s differential
inputs to the circuit under test. Disconnect the probe inputs and the probe ground
connection from the circuit under test before disconnecting the probe from the
measurement instrument.
Observe probe and probe accessory ratings.
Do not applyany electrical potential to the probe inputwhich exceeds the maximum ratings
of the probe or the accessories connected to it. In a combination always the lower rating /
measurement category applies to both probe and accessories connected
to it.
Do not operate with suspected failures.
Refer to qualified service personnel.
Indoor use only.
Do not operate in wet or damp environment. Keep the product dry and clean.
Do not operate the product in an explosive atmosphere.

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About HSDP Series
The HSDP series offers best-in-class performance with >2GHz models up to ±42V differential input
range, and ±8V up to >4GHz bandwidth. The high input impedance, low noise, and 60V common mode
voltage range the different models ideal for various in-circuit measurements for design, validation,
debugging of analog signals, such as used in switched mode power supplies.
The HSDP probes series is also ideal for characterizing a wide range of serial bus designs, supporting
the most popular serial bus interfaces, such as USB2.0, Ethernet (GbE), CAN/LIN, I2C, SPI, SATA,
FireWire (1394b), FlexRay, HDMI etc.
The HSDP series features the industry standard 2.54mm (0.1“) socketed inputs that can easily interface
to a variety of connectivity options available in the market. The compact probe head design, and its
variety of accessories, makes the HSDP series ideal for probing on today’s smallest IC devices.
Individual Connectivity Accessories for Highest Signal Fidelity
The input offset capability extends the input range of the probe. Having an input capacitance of
<0.6pF || 1MΩ between the probe tips, allows the HSDP Series to be used to probe sensitive circuits
without adversely loading the circuit under test.
Differential Input Impedance Input Impedance to Earth Ground
The HSDP-Series uses a PMK custom high speed FET input amplifier that provides a superior high
frequency response, as well as low noise and low distortion to accurately capture the signals being
measured.

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All models are available with either a 7.5m or 2m cable length. These longer cable versions enable the
user to probe remote, hard to reach test points that are impossible with the other probing solution in the
market today.
The HSDP Series has a universal BNC output connector and is compatible with any oscilloscope with
a 50Ω input impedance, or 1MΩ input impedance and a 50Ω feed-through termination, allowing the
HSDP Series to be used on any oscilloscope in the lab.
HSDP-Series’ DC offset can be controlled via remote control. The "PMK Probe Control” software
provides the ability for the user tocontrol the probe remotely via a computer, and provides the user with
a graphical user interface. The software is free of charge, and included with PMK’s 2ch and 4ch power
supplies, PS2 and PS3, which are required to power the probe. The PS2 and PS3 power supplies have
a USB interface as well as an optional LAN interface. The new AP-01, 1 channel battery pack power
supply, provides >8h of portable and isolated operation, which allows the user the flexibility of where
the probe can be used. The AP-01 supplies power only to the probe with no software remote control.
Input Voltage Range Examples
10:1 Models: HSDP4010 / HSDP2010 / HSDP2010L
25:1 Models: HSDP2025 / HSDP2025L

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Specifications
Read the Instruction Manual before first use, and keep it for future reference. A digital copy of the latest
Instruction Manual revision can be downloaded at www.pmk.de
Specifications that are not marked with (*) as guaranteed are typical. Warm-up time is 20 minutes.
The electrical specifiations are separated in multiple tables. Each specification is determined when
using a PS2 power supply at +23 °C ambient temperature. This probe comes with 1 year warranty.
Electrical Specifications
Model
Number
Attenuation
Ratio
(± 2 % at DC)
Bandwidth
(-3dB)
Differential
Voltage Range
(DC + AC peak)1
Differential DC
Offset Range
HSDP4010
10:1
> 4 GHz
4.2 GHz (typ.)
± 8 V
(16 Vpp)
± 12 V
HSDP2010
10:1
> 2 GHz
2.3 GHz (typ.)
± 8 V
(16 Vpp)
± 12 V
HSDP2010L
10:1
> 1.8 GHz
2.0 GHz (typ.)
± 8 V
(16 Vpp)
± 12 V
HSDP2025
25:1
> 2 GHz
2.2 GHz (typ.)
± 20 V
(40 Vpp)
± 30 V
HSDP2025L
25:1
> 1.8 GHz
2.0 GHz (typ.)
± 20 V
(40 Vpp)
± 30 V
HSDP2050
50:1
> 2 GHz
2.2 GHz (typ.)
± 42 V
(84 Vpp)
± 60 V
Observe the Maximum Non-Destructive Voltages between signal and GND:
Model Number
Maximum Non-Destructive Voltage between
signal and GND (from 10Hz)
HSDP4010
20 V
HSDP2010
20 V
HSDP2010L
20 V
HSDP2025
50 V
HSDP2025L
50 V
HSDP2050
60 V
The following specifiations table is valid for all models of HSDP series.
Common Mode Voltage Range
(DC + Peak LF-AC)1
± 60 V
Maximum Non-Destructive Voltage
between signal and GND
(DC + Peak LF-AC)1
± 60 V
Differential Input Impedance
1 MΩ || 0.6 pF
Single-ended Input Impedance
500 kΩ || 1.2 pF
Input Coupling of the
Measuring Instrument
50 Ω
Notes:
1LF less than 10Hz

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Electrical Specifications (Continued)
Review also the referring derating over frequency graphs later in this document..
Model
Number
Noise
(Input referred)2
Rise time
(10%-90%)
Propagation
Delay
Common Mode
Rejection Ratio
(CMRR)
HSDP4010
< 2 mV rms
100 nV/sqrt(Hz)
preliminary
< 140ps
preliminary
6.7 ns
DC:
1 MHz:
10 MHz:
100 MHz:
500 MHz:
1 GHz:
> 70 dB
> 50 dB
> 45 dB
> 35 dB
> 25 dB
> 25 dB
HSDP2010
< 1.5 mV rms
50 nV/sqrt(Hz)
< 200 ps
6.7 ns
DC:
1 MHz:
10 MHz:
100 MHz:
500 MHz:
1 GHz:
> 70 dB
> 50 dB
> 45 dB
> 35 dB
> 25 dB
> 25 dB
HSDP2010L
< 2.5 mV rms
93 nV/sqrt(Hz)
< 200 ps
30.5 ns
DC:
1 MHz:
10 MHz:
100 MHz:
500 MHz:
1 GHz:
> 70 dB
> 50 dB
> 45 dB
> 35 dB
> 25 dB
> 25 dB
HSDP2025
< 3 mV rms
128 nV/sqrt(Hz)
< 200 ps
6.7 ns
DC:
1 MHz:
10 MHz:
100 MHz:
500 MHz:
1 GHz:
> 70 dB
> 50 dB
> 45 dB
> 35 dB
> 25 dB
> 25 dB
HSDP2025L
< 5 mV rms
238 nV/sqrt(Hz)
< 200 ps
30.5 ns
DC:
1 MHz:
10 MHz:
100 MHz:
500 MHz:
1 GHz:
> 70 dB
> 50 dB
> 45 dB
> 35 dB
> 25 dB
> 25 dB
HSDP2050
< 6 mV rms
250 nV/sqrt(Hz)
preliminary
< 200 ps
6.7 ns
DC:
1 MHz:
10 MHz:
100 MHz:
500 MHz:
1 GHz:
> 70 dB
> 50 dB
> 45 dB
> 35 dB
> 25 dB
> 25 dB
Notes:
2RMS noise [mV] at 500MHz bandwidth; noise in [nV/sqrt(Hz)] at 100MHz

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Environmental Specifications
Altitude
operating
up to 2000 m
non-operating
up to 15000 m
Temperature Range
operating
0 °C to +50 °C
non-operating
-40 °C to +71 °C
Maximum Relative
Humidity
operating
80 % relative humidity for temperatures up to +31 °C,
decreasing linearly to 40 % at +50 °C
non-operating
95 % relative humidity for temperatures up to +40 °C
Probe Dimensions
The shown dimensions are in mm and [inch].
Factory Calibration
Annual re-calibration is recommended. ISO17025 calibration upon delivery or as re-calibration will be
possible on request.

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Typical Frequency Response
The frequency response plot shown here is for the probe series without any accessories. Frequency
responses with specific accessories are available on request.
Frequency Response –HSDP Series: 2 GHz models
Frequency Response –HSDP Series: 4 GHz models
Typical Differential Input Impedance
The input impedanceof the probe decreases as thefrequency of the applied signalincreases.