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