ZHCSMR3A november 2020 – november 2020 DS90UB633A-Q1
PRODUCTION DATA
This device is designed to operate from an input core voltage supply of 1.8 V. Some devices provide separate power and ground terminals for different portions of the circuit. This is done to isolate switching noise effects between different sections of the circuit. Separate planes on the PCB are typically not required. Pin description tables typically provide guidance on which circuit blocks are connected to which power terminal pairs. In some cases, an external filter may be used to provide clean power to sensitive circuits such as PLLs. The voltage applied on V(VDDIO) (1.8 V, 2.8 V, 3.3 V) or other power supplies making up V(VDD_n) (1.8 V) must be at the input pin - any board level DC drop must be compensated (that is, ferrite beads in the path of the power supply rails).