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11-20
RF2512
Rev B9 010509
11
Evaluation Board Schematic
H (915MHz) and M (868MHz) Boards
(Download Bill of Materials from www.rfmd.com.)
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Phase
Detector/
Charge Pump
Prescaler
Ref
Select
Gain
Control
C3
100 pF
C1
100 pF
C2*
100 pF
X1
X2*
R5*
0
Ω
PLL ON
C8
100 pF
C7
4pF
L1
8.2 nH
C6
4pF
C18
0.1 uF
50
Ω µstrip
J1
RF OUT
VCC
LVL ADJ
C4
10 nF
C5
22 pF
VCC
C9
10 nF
C10
22 pF
TX EN
R3*
TBD
PRESC OUT
D1
SMV
1233-011
C15
3pF
L2
6.8 nH
L3
6.8 nH
L4
56 nH
R2
4.3 k
Ω
C12
10 nF
C13
22 pF
C14
4.7
µF
C16
47 nF
C17
4.7 nF
R1
OSC SEL
MOD CTL
DIV 64
50
Ωµstrip
J2
MOD IN
C11
0.1
µF
2512401A, 402B
M (868MHz)
H (915MHz)
Board
13.57734
7.15909
X1 (MHz)
13.41015
7.07549
X2 (MHz)
6.8
4.7
L2 (nH)
1.2
2.2
R1 (k
Ω)
6.8
4.7
L3 (nH)
1
2
3
P4
CON3
P4-1
DIV 64
GND
P4-3
MOD CTL
P2-1
PRESC OUT
GND
P2-3
TX EN
1
2
3
P2
CON3
P1
1
2
3
CON3
P1-3
PLL ON
GND
P1-1
LVL ADJ
D2*
D3*
R7*
0
Ω
AUDIO
P3-1
AUDIO
GND
P3-3
OSCSLT
GND
P3-5
VCC
1
2
3
4
5
P3
CON5
C20
3-10 pF
R6*
0
Ω
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