HMC452ST89 Datasheet, PDF (13/22 Pages) Hittite Microwave Corporation – InGaP HBT 1 WATT POWER AMPLIFIER, 0.4 - 2.2 GHz

v01.0205
HMC452ST89 / 452ST89E
InGaP HBT 1 WATT POWER
AMPLIFIER, 0.4 - 2.2 GHz
5
Pin Descriptions
Pin Number
Function
1
RFIN
3
RFOUT
2, 4
GND
Description
This pin is DC coupled.
Off chip matching components are required.
See Application Circuit herein.
RF output and DC Bias input for the output amplifier stage.
Off chip matching components are required.
See Application Circuit herein.
These pins & package bottom must be connected to
RF/DC ground.
Interface Schematic
400 MHz Application Circuit
This circuit was used to specify the performance for 400-410 MHz operation. Contact the HMC Applications
Group for assistance in optimizing performance for your application.
5 - 286
Note: C2 should be placed as close to pins as possible.
TL1
TL2
TL3
Impedance
50 Ohm 50 Ohm 50 Ohm
Physical Length
0.09”
0.08”
0.17”
Electrical Length
2°
2°
4°
PCB Material: 10 mil Rogers 4350, Er = 3.48
TL4
50 Ohm
0.04”
1°
TL5
50 Ohm
0.25”
6°
Recommended Component Values
C1
12 pF
C2
15 pF
C3, C4
6.8 pF
C5
39 pF
C6
100 pF
C7
2.2 μF
L1
47 nH
L2
40 nH
L3
4.3 nH
L4
5.1 nH
R1
5.1 Ohm
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20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
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