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HE892 Datasheet, PDF (1/1 Pages) BOWEI Integrated Circuits CO.,LTD. – Voltage Variable Attenuators | |||
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BOWEI
BOWEI INTEGRATED CIRCUITS CO.,LTD.
HE892/HEM892
Voltage Variable Attenuators
Features
âThin film coustraction
âHermetic package
âOperating temperature range : -55â ï½+85â
Specifications( measured in a 50Ωsystem ,Vcc=+5V, TA=-55âï½+85â)
Parameter
Symbol Unit Guaranteed Typical
Frequency Range fLï½fH MHz 20ï½1000
â
Attenuation(Max) AMax dB
40.0
â
Insertion loss
IL
dB
2.8
2.5
VSWR of input/output VSWR â
1.8:1
1.5:1
VSWR of output VSWR V
1.8:1
1.5:1
DC Current
ICC
mA
â
10
Control voltage/Current VCO/ ICO V/mA
â
0ï½7/0ï½10
Absolute Maximum Ratings
DC Supply: +7VDC
Input Power:+23dBm
1
4
2
3
Storage Temp:+125â
TO-8A-1
1
2 HEMXXX 4
Lot number
3
SMO-8C
Application Notes
1.Functional schematic shown as following,which include
an internal coupling capacitor.
2.Interexchangable input and output ports
3.See assembly section for mounting method
15
1.VCC
2
4
2.RF input
HExxx
3.VCO
3
4.RF output
The metal case is Ground
Typical Performance
Attenuation VS. Frequency
0
7.0V
2.0V
10
20
0.8V
30
0.6V
40
0V
50
60
70
80
20 200 400 600 800 1000
Frequency(MHz)
VSWR VS .Frequency
2.2
2.0
1.8
1.6
1.4
VSWRi
1.2
VSWRo
1.0
20 200 400 600 800 1000
Frequency(MHz)
Attenuation VS.Temperatare
0
10
2.0V
20
30
20
0.8V
Ta=+25â
Ta=+85â
Ta= - 55â
200 400 600 800 1000
Frequency(MHz)
Attenuation VS.Control voltage
0
f=1000MHz
20
40
60
80
0
2
4
6
8 10
Control voltage(V)
â TEL:+86-311-87091891 87091887 â FAX:+86-311-87091282 â http://www.cn-bowei.com â E-mail:cjian@cn-bowei.com
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