Preliminary
RF2449
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
313 ps Electrical Delay @ 880 MHz
0.09 dB Line Loss
P2
1
P4
1
J6
LO IN
P1
1
P3
1
VCC2
VCC1
50 Ω µstrip
R6
P1-1
P1-3
IP SET
GND
P2-1
LNA GAIN
GND
NC
P4-1
P4-3
VCC1
GND
C19
100 pF
56 Ω
2
3
2
3
2
3
GND
2
3
L8
220 nH
C12
100 pF
C13
1 nF
ENABLE P2-3
IF SEL
P3-3
C20
22 pF
MIX GAIN
VCC2
CON3
CON3
CON3
CON3
50 Ω µstrip
ENABLE
IP SET
50 Ω µstrip
1
24
23
22
21
20
19
18
17
16
15
14
13
C14
8 pF
268 ps Electrical Delay @ 110 MHz
0.025 dB Line Loss
J5
50 Ω µstrip
50 Ω µstrip
2
3
IF2 OUT
IF SEL
50 Ω µstrip
LNA GAIN
MIX GAIN
C15
5 pF
4
50 Ω µstrip
5
L2
30 nH
C1
33 nF
440 ps Electrical Delay @ 880 MHz
L1
6.8 nH
L9
470 nH
R5
5.6 kΩ
C16
5 pF
0.14 dB Line Loss
J1
LNA IN
50 Ω µstrip
6
50 Ω µstrip
50 Ω µstrip
50 Ω µstrip
7
C18
100 pF
C7
5 pF
C2
C3
1 nF
100 pF
8
*
VCC1
50 Ω µstrip
50 Ω µstrip
L7
R4
9
410 ps Electrical Delay @ 880 MHz
C6
3.0 pF
470 nH
5.6 kΩ
0.13 dB Line Loss
50 Ω µstrip
50 Ω µstrip
J2
10
11
12
LNA OUT
C8
5 pF
L3
6.8 nH
R1
510 Ω
50 Ω µstrip
50 Ω µstrip
268 ps Electrical Delay @ 110 MHz
C9
8 pF
VCC2
R2
22 kΩ
0.025 dB Line Loss
J4
C4
C5
100 pF
1 nF
IF1 OUT
R3
33 kΩ
L4
1.5 nH
50 Ω µstrip
50 Ω µstrip
2449400A
8
NOTE: LE
Microstrip Inductor, ZO = 50 Ω, L = 100 mils
For IF Freq. = 85 MHz
C14, C15, C5, C6 = 8 pF
L6 and L8 = 470 nH
C7 and C13 = 15 pF
L6
220 nH
C10
100 pF
C11
1 nF
50 Ω µstrip
VCC1
J3
50 Ω µstrip
MIXER IN
50 Ω µstrip
C17
33 nF
L5
22 nH
290 ps Electrical Delay @ 880 MHz
0.07 dB Line Loss
Rev A4 001016
8-81
RFMD [ RF MICRO DEVICES ]
