HMC482ST89 Datasheet, PDF (5/6 Pages) Hittite Microwave Corporation – SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 5.0 GHz

5
Pin Descriptions
Pin Number
Function
1
RFIN
v02.0106
HMC482ST89 / 482ST89E
SiGe HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 5.0 GHz
Description
This pin is DC coupled.
An off chip DC blocking capacitor is required.
Interface Schematic
3
RFOUT
RF output and DC Bias (Vcc) for the output stage.
2, 4
GND
These pins and package bottom must be connected to
RF/DC ground.
Application Circuit
Recommended Bias Resistor Values for
Icc= 110 mA, Rbias= (Vs - Vcc) / Icc
Supply Voltage (Vs)
RBIAS VALUE
RBIAS POWER RATING
6V
9.1 Ω
1/4 W
8V
27 Ω
1/2 W
10V
47 Ω
1W
12V
62 Ω
1.5 W
Note:
1. External blocking capacitors are required on
RFIN and RFOUT.
2. RBIAS provides DC bias stability over temperature.
5 - 478
Recommended Component Values for Key Application Frequencies
Component
L1
C1, C2
50
270 nH
0.01 μF
900
56 nH
100 pF
1900
18 nH
100 pF
Frequency (MHz)
2200
18 nH
100 pF
2400
15 nH
100 pF
3500
8.2 nH
100 pF
5000
6.8 nH
100 pF
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20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
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