Terminology

STPMS2

14/33

Doc ID 16525 Rev 3

6

Terminology

6.1

Conventions

The lowest analog and digital power supply voltage is called GND which represents the

system ground. All voltage specifications for digital input/output pins are referred to GND.

Positive currents flow into a pin. Sinking current means that the current is flowing into the pin

and thus it is positive. Sourcing current means that the current is flowing out of the pin and

thus it is negative.

A positive logic convention is used in all equations.

6.2

Notation

Output bit streams of the modulator are indicated as bsV and bsC for voltage and current

channels, respectively.