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参数资料
| 型号： | ARA05050S12CTR |
| 厂商： | ANADIGICS INC |
| 元件分类： | 放大器 |
| 英文描述： | 5 MHz - 100 MHz RF/MICROWAVE NARROW BAND HIGH POWER AMPLIFIER |
| 封装： | S12, SSOP-28 |
| 文件页数： | 2/14页 |
| 文件大小： | 3016K |
| 代理商： | ARA05050S12CTR |
10
Data Sheet - Rev 2.6
03/2011
ara05050
application inforMation
printed circuit Board layout considerations
The ARA05050 is a high-performance RF device.
Special consideration must be given to certain features
of the the printed circuit board layout, as they can
affect the RF performance of the IC. Refer to the
ANADIGICS application note “CATV Reverse Amp w/
Step Attenuator” for more details.
Amplifier Enable / Disable
TheARA05050 includes two amplification stages
that each can be shut down through external control
pins Vref1 and Vref2 (pins 5 and 19, respectively.)
By applying a typical bias of 1.75 Volts to these pins,
theamplifiersareenabled.Inordertofullydisable
anamplifier,itscontrolpinrequiresanegativebias
of -1.5 to -2.0 Volts.
Amplifier Bias Current
The Iset pins (11 and 25) set the bias current for the
amplification stages. Grounding these pins results
in the maximum possible current. By placing a
resistor from the pin to ground, the current can be
reduced. The recommended bias conditions use the
configuration shown in the test circuit schematic in
figure 4.
thermal layout considerations
The device package for the ARA05050 features a
heat slug on the bottom of the package body. Use of
the heat slug is an integral part of the device design.
Soldering it to the ground plane of the PC board will
ensure the lowest possible thermal resistance for the
device, and will result in the longest MTF (mean time
to failure.)
APCboardlayoutthatoptimizesthebenefitsofthe
heat slug is shown in
figure 13. The via holes located
under the body of the device must be plated through
to a ground plane layer of metal, in order to provide
sufficient thermal conductivity. The recommended
solder mask outline is shown in
figure 14.
esd sensitivity
Electrostatic discharges can cause permanent damage
to this device. Electrostatic charges accumulate on test
equipment and the human body, and can discharge
without detection. Proper precautions and handling
are strongly recommended. Refer to the ANADIGICS
application note on ESD precautions.
figure 13: pc Board layout
0.025BSC
0.089
0.014TYP
0.025MIN.
0.099
0.197
0.163
0.386REF.
0.152
REF.
BODY OUTLINE
(NOMINAL)
0.070
0.150
0.060TYP.
0.400
(12X)0.020
TO 0.060DIA.P
PLATED THRU HOLES.
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