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RF2489
Rev A21 DS070308
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Evaluation Board Schematic
IF@184MHz
1
3
6
4
5
2
9
14
10
13
11
12
32
27
31
28
30
29
24
22
19
21
20
23
26
25
7
8
15
16
18
17
/2
C30
33 nF
/2 SELECT
C17
33 nF
L12
7.5 nH
C18
1 pF
50
Ω μstrip
J8
LNA H IN
R8
68
Ω
50
Ω μstrip
J4
HB LO OUT
L13
2 nH
50
Ω μstrip
J3
LO IN
J5
LB LO OUT
L14
2 nH
50
Ω μstrip
VCC
C7
33 nF
C8
33 nF
ENABLE
C9
33 nF
TX BUFF ENABLE
L6
1 nH
C15
DNI
L5
47 nH
C10
33 nF
C11
33 nF
50
Ω μstrip
J6
MIX H IN
C12
DNI
IN
OUT
F1
2
5
C14
33 nF
LNA GAIN
C13
33 nF
MIX GAIN
L7
7.5 nH
L15
15 nH
C16
33 nF
50
Ω μstrip
J7
LNA H OUT
C31
0.5 pF
VCC
C19
33 nF
50
Ω μstrip
J9
LNA L IN
L16
1.5 nH
L9
47 nH
C20
33 nF
L10
10 nH
VCC
C21
1.8 pF
C22
DNI
50
Ω μstrip
J10
LNA L OUT
F2
1
4
3
6
GND
GND
GND
GND
R10
20 k
Ω
R9
5.1 k
Ω
L11
47 nH
C23
33 nF
C24
DNI
C25
33 nF
50
Ω μstrip
J11
MIX L IN
IF SEL
C29
33 nF
C28
33 nF
IP SET
C27
33 nF
BAND SEL
C26
33 nF
VCC
R4
10 k
Ω
L3
120 nH
C5
6.8 pF
L4
270 nH
R5
0
Ω
C6
7 pF
R6
DNI
50
Ω μstrip
J2
CDMA IF OUT
VCC
C4
6.8 pF
2489310 Rev. 1
R1
10 k
Ω
L2
120 nH
C3
6.8 pF
C1
6.8 pF
L1
270 nH
VCC
R2
0
Ω
C2
7 pF
R3
DNI
50
Ω μstrip
J1
FM IF OUT
P1-1
/2 SELECT
P1-4
BAND SEL
P1-2
IF SEL
P1-3
IP SET
P1
1
2
3
4
CON4
P3
1
2
3
CON3
C32
1
μF
+
GND
GND
P3-1
VCC
R12
0
Ω
R11
0
Ω
P2
1
2
3
4
CON4
P2-1
ENABLE
P2-3
MIX GAIN
P2-4
LNA GAIN
P2-2
TX BUFF ENABLE
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