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參數(shù)資料
| 型號(hào)： | LA7790M |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 174K |
| 代理商： | LA7790M |
Equivalent circuit of RF amplifier block
No. 5689-11/14
LA7790M
VCC
Vout
Choke
Coil
RF
output
0 to 3
A
Mute
VCC
30 mA
from
1st stage
5 k
R2
R1
300
Mute
2nd stage
1st stage
Power save
RF Amplifier Gain = ———————
The gain of RF amplifier can be adjusted by changing the value R1.
R1 : Input Resistor
R1 + R2 + 300
R1 + 300
300
75
Load resistor
VCC
23
1
RF input
Power
save
0 to 4
A
Vin
22
300
3.5 V
20
Unit (resistance :
)
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