DC-2.5 GHz InGaP HBT
Matched Gain Block Amplifier
August 2009 - Rev 07-Aug-09
CGB7289-BD
Application Circuit - Passive Bias,V Supply = 8V
Note: This schematic represents the topology of the application circuit recommended by Mimix.
Recommended Bias Resistor Values for ID = 120 mA
Supply Voltage (Vs)
7V 8V
18 27
9V 10V 12V
Rbias (R1 Description: 1/4W)
Rbias (R1 Description: 1/2W)
—
—
43
—
62
—
—
36
Note: Rbias provides DC bias stability over temperature.
Application Schematic
R2
R1
Vs
C3
C4
C5
L2
L1
R3
4
2
TL 1
RF OUT
TL2
RF IN
1
3
C2
C1
C6
Output
Match
C7 Input
Match
Ref
850 MHz
1950 MHz 2140 MHz
Designator Value
Value
1000 pf
DNP
Value
1000 pf
DNP
C1, C2
C3
1000 pf
DNP
C4
DNP
DNP
DNP
C5
1
F
1
F
1 F
C6
C7
L1
L2
DNP
5.6 fH
33 nH
33 nH
27
1.2 pF
DNP
22 nH
22 nH
27
0.5 pF
DNP
22 nH
22 nH
27
R1
R2
391
391
391
R3
182
182
182
EL1
EL2
13 deg
N/A
N/A
45 deg
N/A
49 deg
Page 17 of 18
Mimix Broadband, Inc., 10795 Rockley Rd., Houston,Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice. ©2009 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
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