Preliminary
SGA-0163 DC-4.5 GHz 2.1V SiGe Amplifier
Preliminary
Basic Application Circuit
R
BIAS
Application Circuit Element Values
Frequency (Mhz)
Reference
Designator
500
850
1950
2400
3500
V
S
1 uF
1000
pF
C
D
L
C
1,2
C
B
C
D
L
C
220 pF
100 pF
68 nH
100 pF
68 pF
33 nH
68 pF
22 pF
22 nH
56 pF
22 pF
18 nH
39 pF
15 pF
15 nH
RF in
C
B
3
SGA-0163
6
4,5
C
B
RF out
Recommended Bias Resistor Values for I
D
=8mA
R
BIAS
=( V
S
-V
D
) / I
D
Supply Voltage(V
S
)
R
BIAS
5V
360
7.5 V
680
9V
820
12 V
1.2K
V
S
R
BIAS
1 uF
1000 pF
Note: R
BIAS
provides DC bias stability over temperature.
C
D
L
C
G45
Mounting Instructions
1. Use a large ground pad area near device pins 1, 2,
4, and 5 with many plated through-holes as shown.
2. We recommend 1 or 2 ounce copper. Measurements
for this data sheet were made on a 31 mil thick FR-4
board with 1 ounce copper on both sides.
C
B
C
B
Pin #
Function
RF IN
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 as close to ground leads as
possible.
Part Identification Marking
3
6 5 4
6 5 4
G45
1, 2, 4,
5
GND
G45
1 2 3
G5Z
6
1 2 3
RF OUT/ RF output and bias pin. DC voltage is
BIAS
present on this pin, therefore a DC
blocking capacitor is necessary for
proper operation.
Caution: ESD sensitive
Appropriate precautions in handling, packaging
and testing devices must be observed.
Part Number
Reel Size
Devices/Reel
SGA-0163
SGA-0163Z
7"
7"
3000
3000
303 Technology Court, Broomfield, CO. 80021
Phone: (800) SMI-MMIC
4
http://www.sirenza.com
EDS-101494 Rev D
SIRENZA [ SIRENZA MICRODEVICES ]
