Deccas are non MC cartridges, that have fixed coils and operate by influencing the coils in the way an MM does. They offer a very individual sound. The way music is portrayed is fairly unique. There is a speed and attack that the majority of other cartridges, whether MC or MM can't replicate. Lucidity and openness are very good too. Anybody used to regular MM cartridges normally has a bit of a shock on first trying a Decca. They are very different indeed.
A bit of a digression, as this is an MM thread. The only alternative cartridge I've come across that offers the same kind of approach as Deccas is the ZYX R100 02H. This too, has that speed and incisiveness, but is deeper in soundstage and more transparent. Bass is better extended and there's an impression of greater control, especially at higher frequencies.
It is impossible for anything digital to sound analogue, because it isn't analogue!