SGA-5489 Ver la hoja de datos (PDF) - Stanford Microdevices
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SGA-5489 Datasheet PDF : 8 Pages
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SGA-5489 DC-4000 MHz 3.3V SiGe Amplifier
Pin #
1
2
3
4
Function
Description
Device Schematic
RF IN
RF input pin. This pin requires the use of an
external DC blocking capacitor chosen for the
frequency of operation.
GND
Connection to ground. Use via holes for best
performance to reduce lead inductance.
Place vias as close to ground leads as
possible.
RF OUT/Vcc RF output and bias pin. Bias should be
supplied to this pin through an external series
resistor and RF choke inductor. Because DC
biasing is present on this pin, a DC blocking
capacitor should be used in most applications
(see application schematic). The supply side
of the bias network should be well bypassed.
GND Same as Pin 2.
Application Schematic for Operation at 850 MHz
Recommended Bias Resistor Values
Supply
Voltage(Vs)
5V
7.5V
9V
12V
Rbias
(Ohms)
25 67 92 142
For 7.5V operation or higher, a resistor with a power
handling capability of 1/2W or greater is recommended.
1uF
68pF
50 ohm
microstrip
100pF
2
1
3
4
25 ohms
VS
33nH
100pF
50 ohm
microstrip
Application Schematic for Operation at 1950 MHz
1uF 22pF
25 ohms
VS
50 ohm
microstrip
68pF
2
1
3
4
22nH
68pF
50 ohm
microstrip
522 Almanor Ave., Sunnyvale, CA 94086
Phone: (800) SMI-MMIC
3
http://www.stanfordmicro.com
EDS-100618 Rev B
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