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Hello,
I'm using the LTC3111. I have followed the typical application on page 1 of datasheet.
I'm operating in burst mode and no load current is drawn.
When I power up the IC, the output Vout (pin 12 of MSOP 16) goes to ground pretty quickly.
The only clues I have of what exactly is going on...
Yes, remove all your ceramic capacitors (don't reuse any of the capacitors from the previous dsPIC33 chip that burnt), remove any other components, even PICKITs.
Test 1:
Take 1 pair of Vdd-Vss and do the following.
Current limit at 100mA.
Put voltage to zero.
Ramp up the voltage from 0-3.3V...
Hello,
I'm using the XADC in Artix-7.
Please inform if this feature is free to use or is it a paid licence?
Can I use this feature by directly connecting the pins to ADxP/ADxN pins of the FPGA?
I'm building a custom FPGA board. I'm pretty new to FPGA PCB layout. Please help.
I'm referring to the NetFPGA 1G CML application schematic for building my custom FPGA board.
They are using the kintex 7.
They used a differential 200 MHz oscillator for their FPGA system clock.
(input VCC = 3.3V, output connected to bank with VCCO = 1.5V using a termination resistor).
the IO...
Hello,
I'm using the 576-4651-ND (Digikey Part Number) for my FPGA system clock.
The part is a differential oscillator. The input voltage is 3.3V. the output voltage swing is .35V.
I don't know what is a differential clock (i've never used it before). Anyways, I'm connecting it to 2 MRCC...
Basically, these are my questions. If anyone knows the direct answers, please inform.
what is the importance of Vref, Vrefp and Vin?
which SelectIO standard I need to use for gigabit ethernet applications?
Hello,
I want to design a PCB for FPGA prototyping. Please help me understand if I need to supply these voltages and why?
Vref
Vrefp
Vin
These voltages are from the Artix-7 Datasheet.
https://www.xilinx.com/support/documentation/data_sheets/ds181_Artix_7_Data_Sheet.pdf
I'm using the Artix -...
just minimal experience. but enough to do a small project.
i have never programmed/configured an FPGA
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I checked the datasheet. I want a textbook or website with information how to choose between ethernet IP cores, which interface type (MII/RMII/...?)
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Hello,
I have not used FPGA before and I have not used ethernet on FPGA. the goal is to build a high speed ethernet using FPGA.
I need some helpful resources to understand what all the above means and more topics like which to choose: MII/RMII/GMII/SMII?
Is there a book that explains these...
Hello,
I was going through this part on digikey
https://www.digikey.com/product-detail/en/KR-5R5V474-R/283-2815-ND/1556243
the ESR is 40 Ohms. The datasheets says that the leakage is low.
Is this because the ESR is high ---> current is low?
The torque in a motor is directly proportional to the current. I was not being silly.
You are right that non-ideal motor windings have resistance. However, that winding resistance is very small and hence the current drawn by the load (motor) could easily burn the windings if the power source...
what literature are you reading on this subject? just to know if you are reading good books.
Personally, you should read books which would help you get the work done but also slowly build up your understanding.
The project sounds intense. Since you are using PIC microcontroller, you should...
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