RF5355 Datasheet, PDF (4/11 Pages) RF Micro Devices – 3.3V, 5GHz LINEAR POWER AMPLIFIER

RF5355
Pin
1
2
3
4
5
6
7
8
Pkg
Base
Function
VC1
RF IN
Description
First stage supply voltage.
RF input. Input is matched to 50 and DC block is provided internally.
Interface Schematic
VC1
INPUT
MATCH
INTERSTAGE
MATCH
VREG
PDETECT
RF OUT
RF OUT
VC3
First, second and third stage bias voltage combined on the die to one exter-
nal voltage. This pin requires regulated supply for best performance.
N ^{Power detector voltage is proportional to RF output power. May need exter-}
nal decoupling capacitor for module stability. May need external circuitry to
bring output voltage to desired level.
IG ^{RF output is internally matched to 50 and DC-blocking capacitor of about}
VC3
1.8pF to 5.6pF depending on the layout is required externally if a switch is
used immediately after the PA that has DC voltage at the switch input
which is the same node at the RF output of the PA.
ES _{Same as pin 5.}
D ^{Supply voltage for the third stage.}
See pin 5.
OUTPUT
MATCH
VC2
GND
Supply voltage for the second stage.
Ground connection. The backside of the package should be connected to
the ground plane through a short path (i.e., vias under the device will be
NEW ^required).
NOT ^FOR
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