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| SBA4086Z Datasheet, PDF (4/6 Pages) RF Micro Devices – DCto5GHz, CASCADABLE InGaP/GaAs HBT MMIC AMPLIFIER | |||
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SBA4086Z
Basic Application Circuit
VS
RBIAS
RF in
1 uF 1000
pF
CD
4
1
3
SBA5086Z
CB
2
LC
CB
RF out
Evaluation Board Layout
VS
1 uF
RBIAS
1000 pF
C
D
LC
CB
CB
Mounting Instructions:
1. Use a large ground pad area under device pins 2 and 4 with many plated through-holes as shown.
2. We recommend 1 or 2 ounce copper. Measurements for this data sheet were made on a 31mil thick FR-4 board with 1
ounce copper on both sides.
Application Circuit Element Values
Reference Designator 500MHz
850MHz 1950MHz
CB
220 pF
100 pF
68 pF
CD
100 pF
68 pF
22 pF
LC
68 nH
33 nH
22 nH
Recommended Bias Resistor Values for ID=80mA, RBIAS=(VS-VD) /ID
Supply Voltage (VS)
7.5 V
8V
10 V
RBIAS
33 ï
39 ï
68 ï
Note: RBIAS provides DC bias stability over temperature.
2400 MHz
56 pF
22 pF
18 nH
12 V
91 ï
3500 MHz
39 pF
15 pF
15 nH
4 of 6
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
DS110708
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