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Folks,
Researching the various MIMO radio techniques. With regards to spatial multiplexing where discrete data streams are sent via an individual modulator, transmitter and antenna section on the same frequency and bandwidth, what practical path differences or individual channel delays are...
Ohhhh Klaussss.... Ol'mate Benbiles is having a better crack than most... there are many ways to skin a cat.. op-amps have more quirks than most other components... I still get bitten by them!! But........
Come'on Benbiles... is it working yet?
The diff amp could work provided you bias the inputs so you have +1/2 VA offset on both the outputs.. This will be a bit tricky since the diff amp runs a dual supply you would have to put -VQ on the inverting input so as to setup the correct single rail bias for the CS. (As described above)...
resistor voltage dividers suffer from poor PSRR.. but then routing your VQ line all round the board to all the other channels has its own problems..
A general purpose opamp rather than your full diff would be better for buffering VQ.. but if its all you have you might be able to configure it as...
Slightly different approach to wwfeldman.... but same questions... and agree the question isn't quite clear.
How I interpret it.. You have a HMI device powered from a SMPS. The HMI device can run from a supply of 12 to 24V. At 12V the HMI device will draw a max of 500mA.
It's more than likely...
No problems.. You're in luck.. My day is largely free as I wait on a recompile of an FPGA build that failed last night... so happy to help.
It would help if the datasheet were a little more explicit.
Just confirming the VQ -> VCOM connection has the decoupling caps to GND in place. Your...
G'day Benbiles,
VQ defiantly needs the decoupling caps as shown in the DS. And yes, it could (and probably should) go to your PGA2500 VCOM to set the midpoint of your output to the same reference the CS5368 is using. Now, the datasheet is a little light on the analog design... however, it...
Assuming the primary side here: Connecting the heatsink to the earth system can cause common mode issues with stray heatsink currents caused from capcitivly coupling between the switching devices and heatsink being added to the (unshielded) earth... whch will radiate. If your heatsink is...
Unless you require extremely low S11 / S22 optimizing the vias will likely not have a huge effect within the L band. I would be trying to keep RF on a single layer though.. 4mil vias will likely cost more! Via dimensions are pretty hit and miss at high freq and don't really follow typical...
G'day treez,
You really need to read, then re-read and read the standard again... The devil is in the detail. I've worked with 60950 which I'll hazard a guess 62368 likely incoporates.. You can't just refer to that document you suggest.. To conform to the relevant parts of 62368 you will need...
This question is a subjective and I understand it is dependent on other factors, however, IÂ’m hoping for some guidelines or experienced knowledge.
With an audio circuit designed to drive a typical set of off-the-shelf headphones, what should the RMS (system generated) noise be limited to at...
USB2 is somewhat forgiving although not with EMI. However, you have significant runs and I donÂ’t think it will be that forgiving. Unfortunately your diff pairs are not going to behave as intended. (Although, they will likely make excellent RF radiators ;) ) As stated, edge coupled diff pairs...
Yes have most of the print material... but was specifically interested in watching the course he presented.. It was available to purchase via DVD from his site which is now offline.
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