Notes from the Field

Showing results for 
Search instead for 
Do you mean 

Elrectret Microphone Options

by Avnet Employee (Super Contributor) on ‎10-14-2014 07:40 AM (862 Views)

On eof our FAEs recently asked me about electret microphones that Avnet may have.  While CMOS micorphones continues to grow in popularirty, there is still a need for traditional electrets-style solutions.


One supplier we represent is PUI Audio.  They have a very large portfolio of microphones.  Please see their product page for more information.


e-MMC managed NAND flash memory

by Avnet Employee on ‎05-03-2012 04:01 PM (4,264 Views)

“e-MMC is a JEDEC standard memory also known as a “Managed NAND”.  It includes discrete NAND flash memory with an embedded NAND flash controller to handle the "overhead" of dealing with the inperfect characteristics of NAND flash memory.


Glibc vs. uClibc - how can you tell?

by Avnet Employee (Star Contributor) on ‎03-15-2012 01:27 PM (9,120 Views)

I recently had a customer who could not use uClibc.  This article shows how to tell if your system runs uClibc or glibc.


What's the point?  At Avnet, we sell hardware.  Lots and lots of hardware.  Everything from computers to resistors, from connectors to RFID tags.  Since we are a hardware company, why do we need to be concerned with software at all?


Setting up a TFTP Server on Ubuntu

by Avnet Employee (Star Contributor) ‎03-15-2012 01:01 PM - edited ‎03-15-2012 01:28 PM (22,984 Views)

TFTP servers are commonly used in embedded Linux development to provide a high-speed download path from the development system (host) to the embedded board (target).  Here is how to get one up and running on Ubuntu.


Demystifying PSRR in an OpAmp

by Avnet Employee on ‎05-24-2010 11:02 AM (3,840 Views)

PSRR is Power Supply Rejection Ratio. It is often mistaken to mean Ripple Rejection also. What is the difference? Read more...

Should I Buck? Boost? Or Buck-Boost?

by Avnet Employee on ‎05-20-2010 11:24 AM (1,241 Views)

What Power Supply Topology Should I Use for My Application? Read more...

Emulator or Debugger - that is the question

by Avnet Employee (Star Contributor) on ‎05-19-2010 10:05 AM - last edited on ‎08-04-2014 08:58 AM by Administrator Administrator (15,045 Views)

I was recently asked this question - What is the difference between Emulator and Debugger?


These terms used to have a different meaning, before the broad acceptance of in-circuit debugging via JTAG.  An emulator was a device (usually a board) that actually plugged into a processor socket on the target board and 'emulated' the processor.  They were very expensive and bulky, but at the time there wasn't a lot of choice if you wanted to write and test code.  That was in the day of EEPROMs or EPROMs, where changing code meant unplugging/programming/replugging an PROM, which stored the device firmware.  A debugger, on the other hand, can have a couple of meanings.  It could be a piece of software used to debug embedded software (such as IAR's Workbench or Keil's uVision), or it could refer to a small pod connected to a host computer via USB and to the target processor via a dedicated debug interface such as JTAG, which allows probing and run control of the target.


A Ground is a Ground is a Ground! Or is it?

by Avnet Employee on ‎05-14-2010 09:54 AM (1,435 Views)

On any PC board, there are ground traces, ground planes, and even ground layers. But, they are often not the same point electrically. Read more...

Ever try to run a boost converter off of a Solar Cell source? It can be done as long as you know a few basic facts about how boost converters work. Read more...