Preliminary
Evaluation Board Schematic
RF=1.959MHz, IF=210MHz
(Download Bill of Materials from www.rfmd.com.)
VCC
P1
1
2
3
CON3
L1
4.7 nH
1
C1
1.5 pF
VCC
C2
100 nF
C3
22 pF
2
3
4
8
7
6
5
L2
2.2 nH
NOTES:
1) R1, L3, C5, and C6 are chosen to produce an output impedance, R
OUT
, of 1000
Ω
@ 210 MHz.
2) L4 and C7 are chosen to match the 1000
Ω
output impedance to 50
Ω
for testing purposes.
VCC
GND
N/C
C5
9 pF
L3
100 nH
L4
180 nH
C6
9 pF
C7
4 pF
RF2459
50
Ω µstrip
J3
IF OUT
R1
16k
Ω
J1
LO IN
50
Ω µstrip
C4
1.5 pF
50
Ω µstrip
J2
RF IN
8
FRONT-ENDS
Rev A2 010717
8-101