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11-227
RF2945
Rev A10 000919
11
Application Schematic - 915 MHz
IF=25MHz, BW=2MHz
25
26
29
31
32
8
6
4
2
1
24
23
22
21
19
18
17
PA
LNA
Control
Logic
Gain
Control
Linear
RSSI
27
28
30
3
5
7
9
10
11
12
13
14
15
16
20
TX ENABL
C6
22 pF
C7
22 pF
L4
10 nH
C21
10 pF
C22
22 pF
C23
0.1 uF
R7
10
Ω
C13
10 nF
C12
10 nF
C57
100 pF
L5
680 nH
C25
22 pF
C26
0.1 uF
R9
10
Ω
C10
10 nF
C11
10 pF
R3
51 k
Ω
RSS
I
C14
10 nF
C15
10 nF
C19
2.2 nF
C31
39 pF
50
Ωµstrip
R80
0
Ω
C30*
4pF
C8
4pF
L1
8.2 nH
C9
4pF
J2
RF
R6*
N/C
L11
680 nH
C55
39 pF
C24
5pF
C5
4.7 uF
+
C27
39 pF
VCC
C54
10 pF
C53
47 pF
L10
680 nH
C56
3pF
C59
47 pF
L9
680 nH
C52
10 pF
C51*
4-22 pF
L8
680 nH
C20
10 nF
J4
MOD IN
50
Ωµstrip
L3
8.2 nH
C16
2pF
D1
SMV1233-011
L2
8.2 nH
C17
22 pF
C18
0.1 uF
C81
4.7 uF
R4
100
Ω
VCC2
R14
10 k
Ω
C48
4.7 nF
R13
30 k
Ω
R12*
100
Ω
C47
330 pF
L7*
TBD
C50
22 pF
R60
0
Ω
C41
100 pF
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Vp
FLo
VCC2
CPo
Fo/LD
GND
LE
GND
Data
fINb
Clock
fIN
CE
VCC1
GND
OSCin
C43
0.1 uF
C44
22 pF
VPLL
C34
1nF
VPLL
R24
27 k
Ω
R27
12 k
Ω
C32
22 pF
C33
0.1 uF
R11
10
Ω
VPLL
R25
27 k
Ω
R28
12 k
Ω
R26
27 k
Ω
R29
12 k
Ω
R30
51
Ω
50
Ωµstrip
J5
REF OSC
RX ENABL
LVL ADJ
DATA OUT
C4
22 pF
C3
0.1 uF
R2
10
Ω
R1
10
Ω
C1
22 pF
C2
0.1 uF
C82
4.7 uF
+
C29
4.7 uF
+
VPLL/VCC2
1
2
P1
CON2
P1-1
VCC1
GND
P4
1
2
CON2
P4-1
RSSI
GND
N/C
GND
P2-1
LVL ADJ
P2
1
2
3
CON3
P3
1
2
3
CON3
P3-1
TX ENABL
GND
P3-1
RX ENABL
P7
1
2
3
CON3
P7-1
VCC2
P7-3
VPLL
GND
P8
1
2
CON2
GND
P8-1
RX OUT
P6
DB9
LMX2316
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