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