Anthony,
Your 0.1uF decoupling capacitor should be okay if it is placed near the REF3020.. I suspect that the author of this data sheet chose this value based on what was used on characterization circuit boards. Or perhaps they just wanted users to…
In my case, a constant voltage with a value of 2.048 generated by REF3020 is connected directly to one AD pin. However, the conversion result of AD fluctuates between 2080 and 2096 when refleshing the watch window in CCS. On the other hand, different…
Other Parts Discussed in Thread: TLC2574 We have a design that is using the TLC2574 in single ended mode. We seem to be seeing a positive offset of ~ 50-100 mV on our expected readings at normal room temperatures. This relates to 10-20 ADC counts. We…
Hi to Everybody!
I'm experiencing a strange problem with F2808.
I developed a sw for DC-DC converter, and the DSP makes 3 acquisitions on the ADC pins (the ADC is correctly configured for 3 acquisitions). However, another signal (output voltage…
Nigel,
Regarding 1, when SELFOCAL runs, the inputs are disconnected from the outside world and are internally shorted together. So no, they are not connected to ground.
For 2, the method you have been using should be ok, but if there is a slight…
Part Number: BQ25120A Other Parts Discussed in Thread: BQ25121A , BQ51003 Hi, the schematic is developed by a programmer who left the company. Problem is we can not get 3.3v out. Is there something we need to change in the schematic?
Note: The components…
We wanted to eliminate one IC as we are only using wireless charging in our device and removing the wired one. We want the power management too, so are searching for the suitable IC.
SCH_VPMED_M1.0.pdf
Part Number: TMS320F28335
Hi everyone,
I am working on a customized DSP F28335 board. I am stuck with the power supplies (1.8V, 3.3V). Is it OK to use two regulated power supplies (1.8V &,3.3V) or TPS767D301 is mandatory as shown in the schematic…
Matteo,
There used to be something called a eZdsp. Unfortunately, the company that made it (Spectrum Digital) went out of business a few years ago. You may still be able to find a board from some online seller. However, as Joe correctly pointed out…
