RF2469PCBA Просмотр технического описания (PDF) - RF Micro Devices
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RF2469PCBA Datasheet PDF : 18 Pages
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Preliminary
RF2469
LNA1, LNA2 Cascade with Mixer Application Schematic
(RF=2140MHz, IF=190MHz)
LNA1 IN
10 nF
VCC
330 pF
0.5 pF
10 pF
VCC VCC
1000
Ω
LNA1 OUT
27 nH
10 pF
20 19 18 17 16
1
15
ENABLE
LNA1 BYP
2
VCC
10 nF
10 pF
3
Logic
14
Control
13
LNA2 BYP
1.1
kΩ
4
12
VCC
VCC
2.4
kΩ
10 nF
10 pF
10 nF
5
11
6 7 8 9 10
3.0 pF
LO IN
MIX IN
1.0 pF
C2
500 Ω
IF SAW
3.0 pF
C3*
IF OUT
8
C1
R
C1
5 pF
4.7
5 pF
L2*
kΩ
10 nH
10 pF
VCC
5 pF
L1
VCC
100 nH
15 nH
10 nF
*See output interface network of the
mixer to determine L2 and C3.
Rev A5 010717
8-39
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