SMA428A Datasheet, PDF (1/8 Pages) STMicroelectronics – High Gain, Low Noise Amplifier

SMA428A
High Gain, Low Noise Amplifier
• 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)
PRELIMINARY DATA
SOT323-6L (SC70)
APPLICATIONS
• LNA FOR CELLULAR MARKET (ideal for GSM900,
DCS1800 and PCS1900).
• LNA FOR GPS APPLICATIONS
ORDER CODE
SMA428ATR
BLOCK DIAGRAM
BRANDING
TBD
Vcc, 1
DESCRIPTION
GS, 4
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
In, 6
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
Symbol
Parameter
V_cc
Device voltage
V_out
Voltage at pin Out
V_GS
Voltage at pin GS
I_tot
Total Device Current
I_in
Current into pin In
P_tot
Total dissipation, T_s < 125 ^oC
P_IN
Input Power
T_op
Operating temperature
T_stg
Storage temperature
T_j
Max. operating junction temperature
THERMAL RESISTANCE
R_thjs
Thermal Resistance Junction soldering point
March, 10 2003
Out, 3
GND, 2;5
Value
4
4
3.5
12
0.5
60
8
-40 to +85
-65 to +150
150
200
Unit
V
V
V
mA
mA
mW
dBm
o_C
o_C
o_C
o_C/W
1/8