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8-11
RF2870
Rev A8 030507
Evaluation Board Schematic
IF Frequency=183.6MHz
Evaluation Board Schematic
IF Frequency=85.38MHz
(Stock Evaluation Boards are at this IF)
16
15
14
13
11
12
9
10
5
6
7
8
2
1
4
3
C56
DNI
R5
4.3 k
Ω
R4
6.8 k
Ω
MIX GAIN
C58
DNI
L21
10 nH
C25
100 pF
L5
1.5 nH
C4
33 nF
LNA GAIN
ENABLE
TX BUF EN
C35
DNI
R2
9.1 k
Ω
L8
68 nH
L6
220 nH
C22
100 pF
C8
DNI
C3
16 pF
C5
16 pF
L9
3.9 nH
C13
1.2 pF
50
Ω µstrip
J7
CELL MIX IN
C9
0.1
µF
C69
3.0 pF
50
Ω µstrip
J8
CELL LNA OUT
VCC
L1
33 nH
50
Ω µstrip
J9
CELL LNA IN
L17
2.2 nH
J5
LO OUT
50
Ω µstrip
VCC
C7
33 nF
J4
LO IN
50
Ω µstrip
L7
DNI
VCC
C6
33 nF
L26
DNI
C11
DNI
L2
DNI
C10
DNI
C12
DNI
C2
33 nF
50
Ω µstrip
J2
CDMA IF
C31
DNI
P2
1
2
3
4
CON4
P1-4
C55
33 nF
LNA GAIN
P1-3
MIX GAIN
C53
33 nF
P1-2
C46
33 nF
TX BUF EN
P1-1
ENABLE
C54
33 nF
GND
P3-1
C20
1
µF
+
VCC1
GND
P3
1
2
3
CON3
FL2
IF Saw
DNI
4
5
9
10
FL4
RF Saw
4
1
6
3
GND
GND
GND
GND
C17
8.2 pF
16
15
14
13
11
12
9
10
5
6
7
8
2
1
4
3
C56
DNI
R5
4.3 k
Ω
R4
6.8 k
Ω
MIX GAIN
C58
DNI
L21
10 nH
C25
33 nF
L3
DNI
C4
33 nF
LNA GAIN
ENABLE
TX BUF EN
R2
DNI
L11
150 nH
L8
220 nH
C22
100 pF
C35
DNI
C5
43 pF
L3
3.9 nH
C13
1.2 pF
50
Ω µstrip
J6
CELL MIX IN
C9
0.1
µF
C69
3.0 pF
50
Ω µstrip
J5
CELL LNA OUT
VCC
50
Ω µstrip
J4
CELL LNA IN
L17
2.2 nH
J3
LO OUT
50
Ω µstrip
VCC
C7
10 pF
J2
LO IN
50
Ω µstrip
2870400, Rev. -
L7
DNI
VCC
C6
33 nF
L26
DNI
C31
DNI
GND
P3-1
C20
1
µF
+
VCC1
GND
P3
1
2
3
CON3
P2
1
2
3
4
CON4
P1-1
ENABLE
P1-2
TX BUF EN
P1-3
MIX GAIN
P1-4
LNA GAIN
C3
43 pF
C17
18 pF
C11
DNI
L2
DNI
C10
DNI
C12
DNI
C2
33 nF
50
Ω µstrip
J1
CDMA IF
C8
DNI
C54
33 nF
C46
33 nF
C55
33 nF
L4
1.2 nH
L5
DNI
L1
33 nH
L6
DNI
FL2
IF SAW
4
5
9
10
FL6
Filter
SAWTEK_2x2_5
C53
33 nF
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