EIM7678-5
ISSUED 08/11/2008
7.6 – 7.8 GHz Multi-Stage Power Amplifier
Application Note
1. The package should be screwed onto a good heat sink and ground
2. Turn on/off sequence is required:
---to turn on: apply -5V first, then +7V and +10V.
---to turn off: turn +7V and +10V off first, then turn -5V off
3. Recommended External Bias Circuit and Internal Block Diagram
22uF
0.1uF
VD1
0.1uF
22uF
VD2
RF IN
RF OUT
Vgg
0.1uF
22uF
GND
NC
Typical Performance:
P1dB & G1dB (@Vds=10.0V, Idsq=2700mA)
P1db(dBm)
40
39
38
37
36
35
34
33
32
31
30
7.4
7.5
7.6
7.7
7.8
7.9
8
40
39
38
37
P1dB
G1dB
P1dB
36
35
34
33
32 G1dB
31
30
Frequency (GHz)
Specifications are subject to change without notice.
Excelics Semiconductor, Inc. 310 De Guigne Drive, Sunnyvale, CA 94085
Phone: 408-737-1711 Fax: 408-737-1868 Web:
www.excelics.com
page 3 of 4
Revised August 2008
EXCELICS [ EXCELICS SEMICONDUCTOR, INC. ]
