Hi Howard,
Yes, with additional oversampling, you can get higher resolution - but that comes at the cost of speed, more sampling means lower throughput so you have to strike a balance. For non-isolated modulators, there are parts like the ADS1201, ADS1202…
Keith,
Thanks so much for the reply.
Thank you for the suggestion. We added a 47pF cap on the FORMAT pin but unfortunately it did not change the 1/4096 signal shape enough to provide any significant decrease (>2dB) in the signal that is being radiated…
Hi Tom,
While searching for parts I stumbled across the ADS1201 Delta Sigma Modulator, it is an old part so I have some worries about using it in a design, but it looks very similar to what I would need (since it allows an MCLK frequency of 20 kHz to…
Hi David,
alright, understand.
Our MCU's could certainly do that as well but in the end what they do internally is probably sample the input signal with the integrated ADC and then calculate and output the PWM signal based on the conversion result. I…