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參數(shù)資料
| 型號： | RF3105 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | 3V 900MHZ LINEAR AMPLIFIER MODULE |
| 中文描述： | 824 MHz - 849 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| 封裝： | 6 X 6 MM, LGM, 7 PIN |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 124K |
| 代理商： | RF3105 |
Preliminary
2-255
RF3105
Rev A1 001030
2
P
Pin
1
Function
VCC1
Description
First stage collector supply. A low frequency decoupling capacitor (e.g.,
4.7
μ
F) is required.
RF input internally matched to 50
. This input is internally AC coupled.
Regulated voltage supply for amplifier bias.
Interface Schematic
2
3
4
RF IN
VREG
VMODE
For nominal operation, V
MODE
is set to LOW. When set HIGH: V
MODE
will increase the bias current by approximately 50%; and, large signal
gain is increased by approximately 1.5dB.
Output stage collector supply. A low frequency decoupling capacitor
(e.g., 4.7
μ
F) is required.
RF output internally matched to 50
. This output is internally AC cou-
pled.
Ground connection. Connect to package base ground. For best perfor-
mance, keep traces physically short and connect immediately to
ground plane.
Ground connection. The backside of the package should be soldered to
a top side ground pad which is connected to the ground plane with mul-
tiple vias. The pad should have a short thermal path to the ground
plane.
5
VCC2
6
RF OUT
7
GND
Pkg
Base
GND
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