RF9678 Datasheet, PDF (4/16 Pages) RF Micro Devices – W-CDMA TRANSMIT MODULATOR AND IF AGC

RF9678
Preliminary
Pin
15
16
Pkg
Base
Function
ISET
PD
GND
Description
Interface Schematic
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.
Power down control for overall circuit. When logic “high” (≥V_CC-0.7V),
all circuits are operating; when logic “low” (≤0.5V), all circuits are
PD
turned off. The input impedance of this pin is >10kΩ. A DC voltage less
than or equal to the maximum allowable V_CC may be applied to this pin
when no voltage is applied to the V_CC pins.
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.
5
5-94
Rev A4 010622