Sunday, January 13th, 2019
Wireless headphone interference investigation from muRata. Link here Recently, the popularity of wireless headsets has been growing as the number of situations where people “play sports while listening to music” increases. Bluetooth is frequently used for communication between smartphones and headsets. However, audio can skip due to communication errors, so...Tags: 2.4Ghz wireless, app note, bluetooth, Murata
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Sunday, January 7th, 2018
App note from Murata on application of Electrical double layer capacitors (EDLCs). Link here (PDF) When you consider backup function in your product, Murata’s supercapacitors (also known as EDLCs, Supercaps) are suitable for backup energy device. Murata’s supercapacitors can discharge in high power up to 10A. Therefore they can cover...Tags: app note, EDLC, Murata, supercapacit
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Sunday, October 2nd, 2016
Circuit from Murata about line frequency measurement utilizing Murata's DMS series digital voltmeters, LM2917 frequency-to-voltage converter and a transformer for isolation. Link here (PDF)Tags: app note, digital meters, Murata
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Sunday, October 2nd, 2016
Scaling large values to be fed on limited input digital meters, application note from Murata. Link here (PDF) It is oftentimes necessary to attenuate “large” input signals down to a level that more closely matches the input range of a selected meter. For example, suppose the signal to be measured is...Tags: app note, digital meters, Murata
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Sunday, April 24th, 2016
All about transformers and its different uses in this application note from Murata. Link here (PDF)Tags: app note, Murata, transformers
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Sunday, April 24th, 2016
Murata's application note about inductors and its specifications. Link here (PDF) Reading a specification for an inductor is considered a simple task, however, there is often some confusion even over the meaning of relatively straight forward parameters.Tags: app note, inductors, Murata
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Sunday, April 17th, 2016
Choosing between two display types, LED and LCD discussed in this application note from Murata. Link here (PDF) Users of contemporary digital panel meters (DPMs) have a variety of options available to them. While options are nice, they invariably mean more choices have to be made. After determining what meter...Tags: app note, LCD, LED, Murata
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Sunday, April 12th, 2015
Another app note (PDF) for power sequencing from Murata Whereas in the old days, one master switch simultaneously turned on the power for all parts of a system, many modern systems require multiple supply voltages for different on-board sections. Typically the CPU or microcontroller needs 1.8 Volts or lower. Memory...Tags: app note, Murata, power sequencing
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Sunday, April 5th, 2015
App note(PDF) from Murata on output capacitors loading when in a switch mode power supply There are numerous factors to consider when adding external capacitors to switched-mode power supplies (SMPS). This article will discuss noise, startup, ESR, stability, pre-bias applications, Sense inputs, On/Off (remote enable) controls and other topics. Many...Tags: app note, capacitors, Murata, SMPS
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Sunday, April 5th, 2015
A great guide (PDF) to electromagnetic compatibility from Murata International regulations regarding electromagnetic compatibility (EMC) affect many aspects of circuit and system design. However, there are many techniques that can be applied generally to reduce both the emissions from and susceptibility to, electromagnetic interference (EMI). As a manufacturer of electronic...Tags: app note, EMC, Murata
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