參數(shù)資料
型號(hào): MBC13720
廠商: MOTOROLA INC
元件分類(lèi): 衰減器
英文描述: Amplifier with Bypass Switch
中文描述: 400 MHz - 2400 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER
封裝: PLASTIC, SOT-363, 6 PIN
文件頁(yè)數(shù): 10/16頁(yè)
文件大?。?/td> 704K
代理商: MBC13720
10
MBC13720 Technical Data
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Application Information
In Figure 3, the typical application circuit at 900 MHz is shown. The input low frequency trap again is used
to maximize the input intercept point. It has moderate IP3 performance and high gain. For higher IP3,
Figure 4 shows the application circuit with feedback network. Capacitive feedback method is used to
reduce the gain and therefore increase the 3rd order input intercept point. The feedback circuit is designed
to provide unconditional stability.
The corresponding PCBs are shown in Figures 5 through 10. Typical characteristics of the application
boards are shown in Table 10.
Figure 2. Typical 1.9 and 2.4 GHz LNA
Application Schematic
Figure 3. Typical 900 MHz LNA
Application Schematic
RF In
C3
1.0 pF
RF
Out
4
5
6
3
1
2
EN2
C4
4.7 μF
EN1
T2
T3
T1
R1
330
C6 27 pF
T1, T2, T3 = 50
Microstrip Line @ 150 mils
C1 27 pF
C2
4.7 μF
L2
2.7 nH
L1
8.2 nH
Bias
Control
RF In
4
5
6
3
1
2
EN2
C4
47 pF
EN1
T1
T2
R1 330
C3 3.0 pF
C5
4.7 μF
C1 47 pF
C2
4.7 μF
L1 8.2 nH
L3
8.2 nH
L2
47 nH
RF
Out
Bias
Control
F
Freescale Semiconductor, Inc.
n
.
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