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Preliminary
5-94
RF9678
Rev A4 010622
5
Pin
Function
Description
Interface Schematic
15
ISET
Connected to ground through an external resistor. The value can be
varied to change the current in the AGC for optimum linearity and cur-
rent consumption.
16
PD
Power down control for overall circuit. When logic “high” (
≥V
CC -0.7 V),
all circuits are operating; when logic “low” (
≤0.5V), all circuits are
turned off. The input impedance of this pin is >10k
Ω. A DC voltage less
than or equal to the maximum allowable VCC may be applied to this pin
when no voltage is applied to the VCC pins.
Pkg
Base
GND
Ground connection. The backside of the package should be soldered to
a top side ground pad which is connected to the ground plane with mul-
tiple vias.
PD
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