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SMA428ATR датащи(PDF) 1 Page - STMicroelectronics

номер детали SMA428ATR
подробное описание детали  High Gain, Low Noise Amplifier
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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PRELIMINARY DATA
March, 10 2003
SMA428A
High Gain, Low Noise Amplifier
Rthjs
Thermal Resistance Junction soldering point
200
oC/W
Symbol
Parameter
Value
Unit
Vcc
Device voltage
4
V
Vout
Voltage at pin Out
4
V
VGS
Voltage at pin GS
3.5
V
Itot
Total Device Current
12
mA
Iin
Current into pin In
0.5
mA
Ptot
Total dissipation, Ts < 125
oC
60
mW
PIN
Input Power
8
dBm
Top
Operating temperature
-40 to +85
oC
Tstg
Storage temperature
-65 to +150
oC
Tj
Max. operating junction temperature
150
oC
ORDER CODE
SMA428ATR
BRANDING
TBD
SOT323-6L (SC70)
• HIGH GAIN Gp = 21 dB at 1.85 GHz
• LOW NOISE FIGURE NF = 1.3 dB at 1.85 GHz
• LOW CURRENT CONSUMPTION 5.9 mA
• OPEN COLLECTOR OUTPUT
• TYPICAL SUPPLY VOLTAGE: 2.4-3 V
• GAIN-STEP-MODE (36dB)
• ULTRA MINIATURE SOT323-6L PACKAGE (LEAD
FREE)
APPLICATIONS
• LNA FOR CELLULAR MARKET (ideal for GSM900,
DCS1800 and PCS1900).
• LNA FOR GPS APPLICATIONS
DESCRIPTION
High gain and low noise figures make the SMA428A an
ideal solution for Low Noise Amplifiers and receiver
front end stages up to 2.5 GHz. SMA428A’s typical
supply voltage range is 2.4 to 3.3 volts. It shows
excellent performances in terms of NF, Gain and
current consumption, using just 3 external matching
components. Applying supply voltage to the GS pin and
grounding Vcc pin, it provides a reduced gain step of 35
dB. SMA428A is housed in ultra miniature SOT323-6L
package(LEAD FREE), the relative dimensions are
1.15mmx1.8mm with 0.8mm thickness.
ABSOLUTE MAXIMUM RATINGS
THERMAL RESISTANCE
In, 6
GS, 4
Vcc, 1
GND, 2;5
Out, 3
BLOCK DIAGRAM


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