RF2402
Pin Function Description
Interface Schematic
10
GND1
Ground connection of the LO phase shift network. This pin should be
connected directly to the ground plane.
11
GND
Ground connection for other circuits. Keep traces short and connect to
ground plane immediately.
12
GND
Same as pin 11.
13
GND2
Ground connection for the RF output stage. A good ground connection
is especially important at this pin to avoid interference with other cir-
cuits.
14
RF OUT 50Ω output. This pin carries a DC voltage, and an external blocking
capacitor is recommended.
RF OUT
5
Application Schematic
VDD
POWER
DOWN
I INPUT
ZIN=100
VREF
I INPUT
ZIN=100
1
100 nF
2
CMOS
33 pF
3
100 nF
4
100 Ω
5
100 Ω
6
100 Ω 100 Ω
7
100 nF
POWER
CONTROL
Σ
33 pF 50 Ω µstrip
14
13
12
11
10
+45°
-45°
9
33 pF
8
50 Ω µstrip
56 Ω
RF OUTPUT
LO INPUT
5-4
Rev B1 010329