RF3854
I SIG P
I SIG N
MODE B
VCC
5.6 pF
LO HB
3.9 nH
1.8 pF
LO LB
22.0 nH
3 pF
MODE C
MODE D
Q SIG N
Q SIG P
Application Schematic
MODE A
VCC
1 nF
24
23
22
1
Note: The die flag is the
chip's main ground.
2
DIV +45°
3
2 -45°
4
Flo +45°
x2 -45°
5
Mode Control
and Biasing
6
7
8
9
21
20
19
18
17
16
Σ
15
14
Power
Control
13
10
11
12
10 nF
1 nF
VCC
2.2 nH
4.3 pF
1 kΩ
4.3 pF
1 pF
2.2 nH
T1
RF OUT WB
2:1
VCC
VCC
430 Ω
430 Ω
4.3 nH
1.6 pF
1.6 pF
4.3 nH
T2
RF OUT HB
2:1
VCC
VCC
12 nH
3.3 pF
1 kΩ
3.3 pF
0.5 pF
12 nH
T3
RF OUT LB
2:1
VCC
GC
Rev A1 DS070313
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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