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Preliminary
8-42
RF2492
Rev A4 010828
8
Evaluation Board Schematic
IF=110MHz
(Download Bill of Materials from www.rfmd.com.)
1
3
6
4
5
2
9
14
10
13
11
12
32
27
31
28
30
29
24
22
19
21
20
23
26
25
7
8
15
16
18
17
J1
LO IN
C27
33 nF
X2 ENABLE
BAND SEL
C28
33 nF
R1
120
Ω
VCC
L13
47 nH
C26
33 nF
C25
33 nF
J11
LNA H IN
L12
36 nH
VCC
L11
2.2 nH
C23
33 nF
J10
LNA H OUT
C22
33 nF
L8
47 nH
C24
DNI
C3
20 pF
C4
33 nF
L1
180 nH
C1
18 pF
L2
270 nH
R2
0
Ω
C2
8pF
VCC
R3
DNI
J2
IF1 OUT
C5
20 pF
L3
180 nH
C7
18 pF
L4
270 nH
VCC
R4
0
Ω
C6
8pF
R5
DNI
J3
IF2 OUT
C13
33 nF
VCC
LNA GAIN
C11
33 nF
J4
LNA L IN
C10
33 nF
IN
OUT
L5
7.5 nH
C9
33 nF
IP SET
C8
33 nF
IF SEL
2
5
C21
DNI
C20
33 nF
J9
MIX H IN
F1
1
5
2
3
6
4
J8
LO L OUT
IN
GND
GND
OUT
IN
GND
IN
IN
GND
GND
GND
IN
T1
6
5
4
2
1
3
T2
J7
LO H OUT
L7
47 nH
C18
DNI
J6
MIX L IN
IN
OUT
C17
33 nF
F2
4
1
5
2
6
3
R6
27 k
Ω
C12
33 nF
C16
DNI
L6
5.6 nH
C15
4pF
J5
LNA L OUT
VCC
C14
33 nF
MIX GAIN
P1
CON10
P1-8
P1-1
P1-7
P1-6
P1-5
P1-4
P1-3
P1-2
C29
1uF
+
636.6 pS Delay
0.20 dB Line Loss
460.0 pS Delay
0.02 dB Line Loss
522.7 pS Delay
0.03 dB Line Loss
629.8 pS Delay
0.17 dB Line Loss
592.7 pS Delay
0.15 dB Line Loss
644.7 pS Delay
0.17 dB Line Loss
C19
33 nF
442.2 pS Delay
0.28 dB Line Loss
421.3 pS Delay
0.11 dB Line Loss
605.0 pS Delay
0.40 dB Line Loss
637.6 pS Delay
0.45 dB Line Loss
633.0 pS Delay
0.45 dB Line Loss
NOTE: T1 and T2 approximate insertion loss is ~2 dB.
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