DC-8.0 GHz InGaP HBT, MMIC or Packaged
Matched Gain Block Amplifier
September 2006 - Rev 01-Sep-06
CGB7017-SC (-BD)
Application Circuit
Note: This schematic represents the topology of the application circuit recommended by Mimix.
R Bias = (Vs - Vd) / Id
Recommended Bias Resistor Values for ID = 78 mA
Supply Voltage (V)
5V
7V
38
—
8V
—
52
10V
—
81
Vd
C4
C3
Vs
uu
uu
uu
uu
uu
uu
R1
4
1
RF IN
C1
2
3
Rbias (R1 Description: 1206 1/4W 1%) 10
Rbias (R1 Description: 1210 1/2W 1%)
—
L1
Note: Rbias provides DC bias stability over temperature.
C2
RF
OUT
Application Circuit for Flat Gain @ 2 to 6 GHz
Note: This schematic represents the topology of the application circuit recommended by Mimix.
R Bias = (Vs - Vd) / Id
Recommended Bias Resistor Values for ID = 78 mA
Supply Voltage (V)
5V
7V
38
—
8V
—
52
10V
—
81
Vd
C4
C3
Vs
R1
4
1
RF IN
C1
2
3
C2
L3
C5
RF
OUT
L2
Rbias (R1 Description: 1206 1/4W 1%) 10
Rbias (R1 Description: 1210 1/2W 1%)
—
Note: Rbias provides DC bias stability over temperature.
Typical Gain Performance
23
Small Signal Gain (dB)
22
21
20
19
18
17
0
1000
2000
3000
4000
5000
6000
Frequency (MHz)
-40C
25C
85C
R2
CGB7017-SC Gain Vs Temp and Frequency
Evaluation Board - SC Package (SOT
-89)
Ref Designator
C1, C2, C3
C4
L1
L1
L3
R1
R2
C4
MIMIX
Value Description
1000 pF MCH185A101JK
1.0 F
VITR 1.0 F 25V CER
CAP 0805 X7R 10%
56 nH
Coilcraft 0603 CS 10%
470 nH Coilcraft 0805 CS 10%
6.8 nH
Coilcraft 0603 CS 10%
R Bias = (Vs - Vd) / Id
75
1206 1/4W
DNP (Do Not Place)
Size
0805
0805
0603
0805
0603
1206 / 1210
1206
N/A
Note: Contact factory for matching recommendations if flat gain is
required from 2 to 6 GHz.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 6 of 8
Characteristic Data and Specifications are subject to change without notice.
©2006
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
their obligation to be compliant with U.S. Export Laws.
MIMIX [ MIMIX BROADBAND ]
