RF3806 Ver la hoja de datos (PDF) - RF Micro Devices
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RF3806 Datasheet PDF : 18 Pages
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RF3806
Application Schematic - DCS/PHS/PCS
1800MHz to 2025MHz
Low Power Linear Operation
+
0Ω
0.1 μF
10 μF
10 pF
10 pF 1000 pF 0.1 μF
+
10 μF
VCC
3
VREF
10 pF
+
1000 pF 0.1 μF 10 μF
270 Ω
24 nH
270 Ω 270 Ω 270 Ω
6.8 nH 1000 pF
RF IN
10 pF
Open
Open
1
2
5.6 pF
3
*
4
Bias
Circuit
1000 pF 0.1 μF
10 pF
+
10 μF
8
L2
7
24 nH 7.5 pF
5.6 pF
RF OUT
6
3.3 pF
Open
Open
Open
Open
Open
Open
Open
5
VBIAS
10 pF
0.1 μF 1000 pF
10 μF+
* PHS/PCS: 1.8 pF
DCS: 2.4 pF
This schematic for low power linear operation:
21dBm<POUT<27dBm, 5V<VCC<8V. Bias R seen above for 8V and 60mA IREF. See biasing table for setting resistance at
other supply voltages.
Application Schematic - DCS/PCS
1800MHz to 1990MHz
High Power Operation
R10
0Ω
C33 + C34
0.1 μF 10 μF
C35
10 pF
VREF
C38
10 pF
C39
C41 + C40
1000 pF 0.1 μF 10 μF
R4
390 Ω
R5
390 Ω
R7
430 Ω
R8
430 Ω
L4
24 nH
C27
Open
RF IN
1
50 Ω μstrip
C28
5.1 pF
C30
2
5.1 pF
3
C18
C19
C20
Open
Open 1.5 pF
4
Bias
Circuit
C48
C40
10 pF 1000 pF
C51
0.1 μF
C50 +
10 μF
VCC
C5
1000 pF
C11
0.1 μF
C7
10 pF
C8 +
10 μF
8
L2
7
24 nH
C13
6.8 pF
C14
2.7 pF
50 Ω μstrip
RF OUT
6
C29
C12
C15
C8
C9
C10
C18
2.4 pF
Open 0.5 pF
1 pF
Open
Open
Open
5
VBIAS
C49
10 pF
C48
C44
0.1 μF 1000 pF
C45 +
10 μF
This schematic for high power operation:
POUT>27dBm, 5V<VCC<8V. Bias R seen above for 8V and 41mA IREF. See biasing table for setting resistance at other supply
voltages.
Rev A3 DS070509
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
3-117
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