SXT-289 查看數據表（PDF） - Sirenza Microdevices => RFMD
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SXT-289 Datasheet PDF : 9 Pages
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SXT-289 1800-2500 MHz Power Amplifier
Voltage Feed Resistor Bias Circuit (for > 7V supply)
Note: Circuit Optimized for Output IP3
Vs
C3 C4 C5
Rbias
R1
R2
L1
Z=50 Ω, EL3
L2
L3
C7
C1
C2
SXT-289
C6
Z=50 Ω, EL2
Z=50 Ω, EL1
Schematic
Recommended Bias Resistor Values
Supply
Voltage(Vs)
7V
8V
10V 12V
Rbias (Ohms)
18
27
47
62
Power Rating 0.5W 1.0W 1.5W 2.0W
Ref. Des. 1960 MHz 2140 MHz
C1, C7
39pF
39pF
C2
0.5pF
-
C3
0.1uF
0.1uF
C4
1000pF 1000pF
C5
18pF
18pF
C6
1.0pF
1.0pF
C6 Position
1
2
L1, L2
15nH
15nH
L3
2.7nH
thru
R1
390 Ohm 390 Ohm
R2
180 Ohm 180 Ohm
Rbias
see chart see chart
EL1
13.5°
-
EL2
19°
-
EL3
8.8°
* 56.7°
2450 MHz
39pF
-
0.1uF
1000pF
18pF
1.0pF
3
15nH
thru
390 Ohm
180 Ohm
see chart
-
-
* 56°
Part Number
Rohm MCH18 series
Rohm MCH18 series
Matsuo 267M3502104K
Rohm MCH18 series
Rohm MCH18 series
Rohm MCH18 series
Toko LL1608-FS series
Toko LL1608-FS series
Rohm MCR03 series
Rohm MCR03 series
* from output pin of SXT-
289
RFin
Rbias
R1
R2
C1
L1
C2
Vs
C3
C4
RFout
C5
L2
C7
L3
SXT-289
1
32
C6
SIRENZA MICRODEVICES
SOT-89 Eval Board
ECB-101499 Rev B
Evaluation Board Layout
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
7
http://www.sirenza.com
EDS-101157 Rev G
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