EEVblog #265 - Philips PM6672 Timer Counter Teardown

PHOTOS: The first of the new regular segment on the EEVblog - Teardown Tuesday. Dave cracks open the Philips PM6672 1GHz Timer Counter, and more interestingly, the PM9690 10MHz oven stabilised reference crystal oscillator. Теги: Philips,PM6672,PM6671,PM6670,PM9690,Timer,frequency,Counter,pwm,duty,cycle,period,measurement,counting,reciprocal,schematic,teardown,pcb,processor,power,supply,crystal,oven,stabilised,oscillator