In addition to voice connectivity, digital cellular wireless networks such as GSM and its enhancement, GSM-EDGE, can now provide increased data speeds up to a (theoretical) limit of 384Kbps. Third generation mobile networks, such as CDMA2000 and WCDMA or UMTS (Universal Mobile Telecommunications Standards) and TDSCDMA...
Published: Jul 19, 2018
A real-time operating system (RTOS) must be fast and responsive, schedule tasks and manage limited resources, and ensure functions are isolated and free of interference from other functions.
In this report, you’ll learn more about what is a real-time OS and the pros and cons of two types of RTOS architectures:...
Published: Aug 27, 2020
Antenna selection is one of the most critical, yet confusing parts of designing a wireless system. This paper provides guidelines for antenna selection, alignment, and placement. It will explore antenna theory and recommend practical rules of thumb to use when recommending and installing antennas.
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Published: Jul 17, 2018
Flash memory is commonly used to store firmware in embedded systems. Occasionally, the firmware stored in the Flash memory in some systems is accidentally corrupted, preventing the system from booting up after power-on. Flash corruption is commonly associated with a software bug. However, it is also commonly understood...
Published: Jul 19, 2018
In the not too distance past, procuring a low phase noise 1 GHz source was very expensive, limiting it to only very high-end applications that could support the cost of incorporating this technology in the design.
Employing a compact, low-phase noise, high-frequency source in your design will combine the best attributes...
Published: Jul 24, 2018
Upcoming technologies such as 5G for wireless communications and the increasing amount of integrated electronic systems in modern vehicles require new solutions for EMC testing. In addition, manufacturers are looking for time saving test routines and intuitive test software that enable fast precompliance and compliance...
Published: Sep 23, 2020
Designers for electronic products are challenged by requests for customized and differentiated complex products in short time frames. In this environment two factors become crucial: flexibility and simplicity. For many years ASICS or FPGAs allowed engineers to meet very specific product design requirements. However, the...
Published: Jul 23, 2018
In many applications, unintentional power loss is critical and can occur frequently. Thus, it is necessary to implement mechanisms that prevent from non-working devices, such with firmware damage or undefined data states.
This document describes the internal power-fail management mechanisms of F-240 Cfast cards.
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Published: Jul 24, 2018
Most organizations do not consider production test a top priority, but it is a necessity to prevent major quality issues in the products that represent the company brand in the hands of customers.
The costs, however, can be significant and are often greatly misunderstood, especially when there’s no easy way...
Published: May 01, 2019
Gallium nitride transistors can be used to improve the efficiency of DC-DC conversion.
In this white paper we look at a new application that is being enabled by gallium nitride technology that has been difficult to implement using traditional silicon MOSFET power devices.
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Published: Jul 25, 2018
Digital power is one of the most important technologies for reducing power consumption and managing the growing power complexity in modern electronic systems.
This paper explores the many benefits for system designers working with digital power modules, and shows how digital power modules can simplify the design of...
Published: Jul 23, 2018
To achieve some of the ambitious Key Performance Indicators of 5G enhanced Mobile Broadband, semiconductor devices for 5G infrastructure need to empower reliable multi-user MIMO (MU-MIMO) functionality at mmWave frequencies with larger channel bandwidths. 5G base stations achieve this spatial multiplexing by employing...
Published: Nov 04, 2019
Medical device designers have become increasingly interested in the Linux ® operating system (OS), largely because of its open source model. Linux lets the designer leverage a large pool of developers, a rich legacy of source code, and industry-standard POSIX APIs.
But Linux may not be the right choice for all...
Published: Aug 27, 2020
Rohde & Schwarz launched with the R&S ESU the world's first commercial EMI test receiver capable of time domain scans. The EMI test receiver family R&S ESR does also support time domain scans and delivers even faster measurements.
Taking the R&S ESR EMI test receiver as an example, this paper examines...
Published: Sep 08, 2020