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Preliminary
5-78
RF2668
Rev B4 010423
5
Pin
Function
Description
Interface Schematic
47
VCC3
Supply voltage for the AGC and the Bandgap circuitry. A 1nF external
bypass capacitor is required and an additional 0.1
µF will be required if
no other low frequency bypass capacitors are nearby. The trace length
between the pin and the bypass capacitors should be minimized. The
ground side of the bypass capacitors should connect immediately to
ground plane.
48
BG OUT
Bandgap voltage reference. This voltage, constant over temperature
and supply variation, is used to bias internal circuits. A 1nF external
bypass capacitor is required.