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SCA-2 View Datasheet(PDF) - Stanford Microdevices

Part NameDescriptionManufacturer
SCA-2 DC-4 GHz, Cascadable GaAs HBT MMIC Amplifier Stanford-Microdevices
Stanford Microdevices 
SCA-2 Datasheet PDF : 6 Pages
1 2 3 4 5 6
Pin #
1
2
3
4
PPrreelilmimininaarryy
SCA-2 DC-4GHz Cascadable MMIC Amplifier
Function
RF IN
GND
RF OUT/Vcc
GND
Description
RF input pin. This pin requires the use of an external DC blocking capacitor
chosen for the frequency of operation.
Connection to ground. Use via holes for best performance to reduce lead
inductance. Place vias as close to ground leads as possible.
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.
Same as Pin 2.
Application Schematic for Operation at 850 MHz
Recommended Bias Resistor Values
Supply Voltage(Vs)
8V
9V 12V 15V
Rbias (Ohms)
@ 65 mA
39
56 100 150
Rbias (Ohms)
@ 80 mA
30
43
82 120
Rbias (Ohms)
@ 100 mA
20
30
62
91
1uF
68pF
Rbias
VS
50 ohm
microstrip
100pF
2
1
3
4
33nH
100pF
50 ohm
microstrip
Application Schematic for Operation at 1950 MHz
1uF
22pF
Rbias
VS
50 ohm
microstrip
68pF
2
1
3
4
22nH
68pF
50 ohm
microstrip
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
4
http://www.stanfordmicro.com
EDS-101390 Rev A
Direct download click here

 

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