Am doing some lo-noise stuff (per CISPR22/32 class B limits). For various reasons, not all related to noise, cannot exceed a 24MHz clock.
Have tested various ATtiny and other AVRs, and some M0 and M4 STMs, and some TI 430s, and Teensy models 3.2, 3.5, and LC. So far, the two most 'quiet' processor modules have been an ardy pro mini (a China clone) and the Teensy LC. For obvious reasons, will not put the former in a fielded product, so am planning to use the latter T-LC, but with an external ADC.
Without resorting to shielded enclosures, etc, any low-noise microcontroller recommendations? Is there something special about the PCB layout for the T-LC that was done to reduce emissions?
Have tested various ATtiny and other AVRs, and some M0 and M4 STMs, and some TI 430s, and Teensy models 3.2, 3.5, and LC. So far, the two most 'quiet' processor modules have been an ardy pro mini (a China clone) and the Teensy LC. For obvious reasons, will not put the former in a fielded product, so am planning to use the latter T-LC, but with an external ADC.
Without resorting to shielded enclosures, etc, any low-noise microcontroller recommendations? Is there something special about the PCB layout for the T-LC that was done to reduce emissions?