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Preliminary
7-49
RF2689
Rev A4 010815
7
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
Drawing 2689400 Rev -
19
18
17
16
14
13
12
10
9
8
7
5
4
3
2
1
*
*
*
*
20
6
11
15
C5
100 pF
R6
680
Ω
L1
68 nH
C1
6pF
C3*
DNI
50
Ωµstrip
J1
GSM
R1
10 k
Ω
VGC
C2
5.1 pF
C4*
DNI
50
Ωµstrip
J2
WCDMA
C6
100 pF
R7
680
Ω
L2
150 nH
C10
10 nF
VCC
MODEA
MODEB
C23*
DNI
C20
100 pF
C24*
DNI
50
Ωµstrip
J4
LO IN
ENRX
TP7
QOUT N
TP6
QOUT P
TP5
IOUT N
TP4
IOUT P
R12*
DNI
C12
100 nF
R2
10 k
Ω
C13
100 nF
R3
10 k
Ω
R14
20 k
Ω
3
2
+
-
C14
100 nF
+5V
7
4
8
5
U2
R15
20 k
Ω
6
CLC426
R18
51
Ω
50
Ωµstrip
J5
IOUT
C15
100 nF
-5V
R13*
DNI
C18
100 nF
R4
10 k
Ω
C19
100 nF
R5
10 k
Ω
R16
20 k
Ω
3
2
+
-
C16
100 nF
+5V
7
4
8
5
U3
R17
20 k
Ω
6
CLC426
R19
51
Ω
50
Ωµstrip
J6
QOUT
C17
100 nF
-5V
ENCAL
C9
100 pF
C8
1nF
TP1
VREF2V
TP2
IFP
TP3
IFN
C11
10 pF
J3
FCLK
CON3
JP3
+5V
-5V
1
2
3
C21
1uF(16V)
+
C22
1uF(16V)
+
HDR 8
8
7
6
5
4
3
2
1
JP1
ENRX
ENCAL
MODEA
MODEB
VCC
VGC
C7
1uF
+
R11
1M
R10
1M
R9
1M
R8
1M
Note: Parts with * following reference designator should not be populated on evaluation board.
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