SGA-0363 Datasheet, PDF (3/5 Pages) List of Unclassifed Manufacturers – DC 5000 MHZ SILICON GERMANIUM CASCADEABLE GAIN BLOCK

Pin #
1
2
3
4
5
6
PPrerelilmimininaaryry
SGA-0363 DC-5.0 GHz 2.5V SiGe Amplifier
Function
GND
GND
RF IN
GND
GND
RF OUT
Description
Connection to ground. For best
performance use via holes (as close to
ground leads as possible) to reduce lead
inductance.
Same as Pin 1
RF input pin. This pin requires the use of an
external DC blocking capacitor chosen for
the frequency of operation.
Same as Pin 1
Same as Pin 1
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 this bias
network should be well bypassed.
Device Schematic
Application Schematic
Recommended Bias Resistor Values
Supply
Voltage(Vs)
5V
7.5V
9V
12V
Rbias (Ohms) 220
470
620
910
Note: A bias resistor is needed for stability
over temperature.
50 ohm
microstrip
Cd1
3
Cb1
Cd2
1,2
6
4,5
R bias
Vs
Lchoke
50 ohm
microstrip
Cb2
Reference
Designator
Cb1
Cb2
Cd1
Cd2
Lchoke
Function
DC Blocking
DC Blocking
Decoupling
Decoupling
AC Blocking
500 MHz
220 pF
220 pF
1 uF
100 pF
68 nH
850 MHz
100 pF
100 pF
1 uF
68 pF
33 nH
1950 MHz
68 pF
68 pF
1 uF
22 pF
22 nH
2400 MHz
56 pF
56 pF
1 uF
22 pF
18 nH
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
3
http://www.stanfordmicro.com
EDS-101495 Rev A