Preliminary
RF2494
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
GS VCC4
R6
C9
10 Ω
10 nF
50 Ω µstrip
L6
4.7 nH
J2
C8
2 pF
C5
10 nF
LNA OUT
R4*
0 Ω
50 Ω µstrip
C10
1.5 pF
J1
R2
0 Ω
LNA IN
50 Ω µstrip
16
15
14
13
FL1
IN
GND
OUT
PD
1
2
3
4
12
11
10
9
Bias
Circuits
LNA
VCC1, VCC2
L5
1.8 nH
R3
0 Ω
C4
10 nF
C19
22 pF
J4
RF AMP
C11
0.5 pF
MIX IN
50 Ω µstrip
R5*
50 Ω µstrip
C17
10 nF
C2
0.5 pF
0 Ω
R1
2.2 kΩ
L2
120 nH
C12
0.5 pF
5
6
7
8
VCC3
2494400-
L3
8.2 nH
C21
22 pF
C7
10 nF
C16
1 pF
L1
100 nH
C6
10 nF
50 Ω µstrip
RX EN
8
C15
22 pF
C18
10 nF
50 Ω µstrip
50 Ω µstrip
J3
J5
IF OUT
LO IN
C3
10 nF
P2
1
P3
P1
* For cascaded configuration,
jumpers R2 and R3 need to be
installed with R4 and R5 taken out.
1
2
3
1
2
P2-1
GS
P3-1
P3-3
VCC3
GND
P1-1
VCC1, VCC2
GND
2
GND
P2-3
VCC4
RX EN
P1-3
3
PD
3
C20
10 nF
CON3
CON3
CON3
8-58
Rev A0 010730
RFMD [ RF MICRO DEVICES ]
