Rohde & Schwarz HMO3042 - Mixed Signal Oscilloscope

Systems that are constantly becoming faster and more complex lead to ever higher demands on the required measurement technology. The oscilloscope series R&S®HMO3000 offers the solution for current requirements in regards to bandwidth, sampling rate and memory depth. Its bandwidth of up to 500 MHz allows to set a new milestone in the development of high-performance mixed signal oscilloscopes at an attractive price.

The 2- and 4-channel instruments provide bandwidths of 300, 400 and 500 MHz, a sampling rate of 4 GSa/s and a memory depth of 8 MPts. The instruments are rounded off with a standard inclusion of the MSO functionality and several options for serial bus analysis to meet all requirements of modern development designs.

Rohde & Schwarz is offering the new R&S®HMO3000 series exclusively as mixedsignal oscilloscopes. It is also unnecessary to initially activate the mixed-signal functions via software options, as is the case with other suppliers. The low capacitance logic probe R&S®HO3508 (also available as double pack HO3516) is optional. It allows the analysis of up to 16 logic channels with a sampling rate of 1 GSa/s. The logic probe is not linked to a specifi c instrument serial number. This allows its use with all digital oscilloscope of the R&S®HMO series. For communications between embedded systems and the environment the R&S®HMO3000 includes hardware-based signal triggering and decoding for all common protocols (I2C, SPI, UART, CAN and LIN). This option can be activated with an upgrade voucher at any time.

The integrated three-digit digital voltmeter enables service technicians to simultaneously perform voltage measurements on all analog channels with four values totalling.

The segmented memory option R&S®HOO14 enables you to divide the available memory of your R&S®HMO3000 into up to 1000 segments. This procedure allows sampling rates of 200 000 Wfm/s, which makes it possible to capture rare anomalies occurring during many short events in quick succession. For the analysis of the recorded signals, all measurement functions of the R&S®HMO are available, including the Pass/Fail function.

The R&S®HMO3000 series offers time domain, logic, protocol and frequency analysis in a single instrument and is a member of the Rohde & Schwarz family of scope-of-the-art oscilloscopes.

Versatile measurement functions and fast results

• Wide selection of automatic measurement functions
• QuickView: key results at the push of a button
• Mask test: a new mask can be easily created with just a few keystrokes
• FFT: the easy way to analyze the signal spectrum

Logic analysis with the MSO option

• Mixed signal function as standard
• Precise triggering on signal events
• Straightforward display of digital signals
• Low test point loading due to active probe solution

Serial bus analysis: hardware-based triggering and decoding

• Versatile trigger options for isolating specific data packets
• Color-coded display of decoded bus signals
• Direct export of analyzed data to USB memory drive
• Simultaneous decoding of two buses in realtime

Voltmeter measurements using an oscilloscope

• Three-digit display for precise voltage measurements
• Simultaneous measurement on all analog channels of up to four voltage values totalling

Future-ready investment and scalability

• Free firmware updates
• Bandwidth upgrades as required
• Serial bus analysis and segmented memory via optional software licenses

Always a MSO

The mixed signal functionality is always included in the R&S®HMO3000 series with no software option being necessary to unlock it.

Rohde & Schwarz is offering the R&S®HMO3000 series exclusively as a mixed-signal oscilloscope. The great advantages of these instruments are best illustrated by taking a look at how ADCs (Analog Digital Converter) or DACs (Digital Analog Converter) are integrated.

These transformer modules include an analog signal on the one side and a digital signal on the other side. As shown in the image below the latency time of a DAC can be determined with one simple cursor measurement. Therefore a MSO allows developers to devote their full attention to the circuit without having to waste energy on the measurement setup.

The active logic probe R&S®HO3508 (also available as double pack HO3516) is available separately and is not linked to a specific serial number of an instrument. It can be used with any R&S®HMO oscilloscope.

Serial Bus Analysis

I2C, SPI, CAN or LIN – in terms of interaction with the outside world for embedded systems, it is safe to say that these are the most commonly used communication protocols. The R&S®HMO3000 series by Rohde & Schwarz offers you hardware-accelerated signal triggering and decoding for all of these protocols. You can upgrade your instrument via software licence keys with those functions required to develop your application:

• R&S®HOO10 / R&S®HV110: Analysis of I2C, SPI and UART/RS-232 signals on analog and logic channels
• R&S®HOO11 / R&S®HV111: Analysis of I2C, SPI and UART/RS-232 signals on all analog channels
• R&S®HOO12 / R&S®HV112: Analysis of CAN and LIN signals on analog and logic channels

Segmented Memory

The segmented memory option R&S®HOO14 enables you to divide the available acquisition memory of the R&S®HMO3000 into up to 1000 segments.

This procedure allows sampling rates of 200 000 Wfm/s, which makes it possible to capture rare anomalies occurring during many short events in quick succession.

Segmentation can be applied on the acquisition of analog and digital channels as well as onto the decoding of serial busses. Additionally, all measurement functions for analyzing the recorded signals are available, including the Pass/Fail function.

Digital Voltmeter (DVM)

The three-digit digital voltmeter is also a standard feature which makes the work of service technicians in particular easier. Voltage measurements can be performed simultaneously for all analog channels. Integrated into a single compact device it allows you to keep your workplace tidy.

• Perform measurements simultaneously on all analog channels, with up to four freely definable parameters totalling
• These options are available: DC, DCrms, ACrms, Crest Factor, Vpp, Vp+, Vp-
• You decide about the position of the values on the screen

Frequency Analysis

Due to the outstanding FFT functionality of the R&S®HMO series oscilloscopes signals can also be analysed in the frequency domain with up to 65,536 points. Additional practical tools such as cursor measurement as well as peak-detect functions are also available. They allow engineers to complete their analysis significantly faster, also in the frequency domain.

Easy analysis in frequency domain
In the time domain quite often the distortion of input signals cannot be detected with the naked eye. For instance, an acquired sine wave signal appears to be undistorted. Only the frequency spectrum – available with just one push of a button – clearly displays additional harmonics that occur as harmonic oscillations for multiples of the basic frequency.

Since FFT is also active for previously stored signals, it is possible to subsequently analyze any sections of those signals captured in single shot mode or stop mode with an adjustable window width.