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參數(shù)資料
| 型號： | RF5189 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | 3V, 2.45GHz LINEAR POWER AMPLIFIER |
| 中文描述： | 2400 MHz - 2500 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, QFN-12 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大小： | 229K |
| 代理商： | RF5189 |
2-657
RF5189
Rev A5 040106
Pin
1
Function
RF IN
Description
RF input. Input is matched to 50
and DC block is provided internally.
Interface Schematic
2
3
NC
No connect. Recommend connecting to ground.
BIAS1GND
Ground for first stage bias circuit. For best performance, keep traces
physically short and connect immediately to ground plane.
First stage input bias. This pin requires a regulated supply to maintain
nominal bias current.
See pin 4.
4
VREG1
5
VREG2
Second stage input bias. This pin requires a regulated supply to main-
tain nominal bias current. Usually connected to VREG1.
Ground for second stage bias circuit. For best performance, connect to
ground with a choke inductor.
Provides an output voltage proportional to output RF level.
RF output. Output is matched to 50
and DC block is provided inter-
nally.
See pin 4.
6
BIAS2GND
See pin 4.
7
8
PWR SEN
RF OUT
9
10
RF OUT
VCC2
Same as pin 8.
See pin 8.
Second stage output bias. Supply should be connected through a
choke inductor sized appropriately to handle the output bias current.
Same as pin 10.
See pin 8.
11
12
VCC2
VCC1
See pin 8.
First stage output bias. This pin is sensitive to bypass capacitors placed
close to it. Place an RF short approximately 200mils from this pin
before any other supply connections.
Ground connection. The backside of the package should be connected
to the ground plane through a short path (i.e., vias under the device will
be required).
See pin 1.
Pkg
Base
GND
INPUT
MATCH
VCC1
INTERSTAGE
MATCH
BIAS
VREG1
VREG2
BIAS
GND1
BIAS
GND2
RF OUT
OUTPUT
MATCH
VCC2
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