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8-109
RF2486
Rev A7 010717
8
Evaluation Board Schematic
1.96GHz, 210MHz IF
(Download Bill of Materials from www.rfmd.com.)
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C1 2
22 pF
C6
1n F
50
Ω µstrip
J1
LN A2 IN
BU FF EN
C1 4
1n F
C7
22 p F
R1
1k
Ω
50
Ω µstrip
J2
LO IN
C1 0
1n F
C5
22 p F
L1
2.7 n H
C4
1.5 p F
C1 *
22 pF
C2 *
22 pF
C2 a
22 p F
F L1*
C1 a
22 pF
50
Ωµstrip
50
Ω µstrip
J6
LN A O U T
J5
M IX E R IN
C1 1
1.0 p F
L4
47 n H
C8
5p F
J4
IF O U T
2 486400 -
*C o m po ne n ts n o t n o rm ally po pu la te d .
C1 8
22 pF
NO TE S:
C 1 1s e le c te dtofin etu n eL 4fo r IF o u tp u t m a tc ha t 2 1 0 M H z .
R 2 is no rm ally n o t p o p u late d . F or ap plic a tio n s re q u irin g a dd itio nal L N A IP 3, see the d a ta s hee t fo r
re c o m m end ed resistanc e va lu e s .
C 1 a a n d C 2 a a re no rm ally n o t p o p ulate d . If C 1a an d C 2 a a re p o p ulated , the L N A a nd m ixe r c an b e
te s te d in de pen d e n tly . In th is c a se , C 1 a nd C 2 s hou ld b e re m o v e d.
To use the p a rt w ith o nbo ard filte r, d o no t p op ula te C 1a, a nd C 2 a .
U s e C 1 a n d C 2 in s te a d . T h is w ill a llo w c a s c a d e d o p e ra tio n o n ly .
P1
1
2
3
BU FFER E N ABL E
VC C
50
Ωµstrip
VCC
**S ee N o te s**
VC C
Gn d
C1 3
1n F
C9
22 p F
C1 5
4.7 u F
+
V
CC
L2
47 0 n H
L3
47 0 n H
50
Ωµstrip
J3
LO O U T
C1 7
10 0 p F
L5
22 0 n H
T1
C1 6
10 0 p F
TO KO
50
Ωµstrip
**Se e N otes **
50
Ωµstrip
C3
22 p F
R2 *
SAT
**S e e N otes **
V
CC
V
CC
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