BOWEI HEM892

HE892/HEM892
B O WEI
Voltage Variable Attenuators
BOWEI INTEGRATED CIRCUITS CO.,LTD.
Typical Performance
Attenuation VS. Frequency
0
7.0V
2.0V
Attenuation(dB)
10
Features
●Thin
film coustraction
package
●Operating temperature range : -55℃ ~+85℃
●Hermetic
20
0.8V
30
0.6V
40
0V
50
60
70
80
20
200
400
600
800
1000
Frequency(MHz)
Specifications( measured in a 50Ωsystem ,Vcc=+5V, TA=-55℃~+85℃)
Parameter
Unit
2.2
Frequency Range
fL~fH
MHz
20~1000
–
Attenuation(Max)
AMax
dB
40.0
–
Insertion loss
IL
dB
2. 8
2.5
–
1.8:1
1.5:1
V
mA
1.8:1
1.5:1
–
10
–
0~7/0~10
VSWR of input/output VSWR
VSWR of output
VSWR
DC Current
ICC
Control voltage/Current VCO/ ICO V/mA
VSWR VS .Frequency
Typical
Guaranteed
2.0
1.8
VSWR
Symbol
1.6
1.4
VSWRi
1.2
VSWRo
1.0
20
200
400
600
800
1000
Frequency(MHz)
Attenuation VS.Temperatare
1
DC Supply: +7VDC
Input Power:+23dBm
Storage Temp:+125℃
1
4
2
HEMXXX
2
Lot number
3
3
SMO-8C
TO-8A-1
Application Notes
4
Attenuation(dB)
Absolute Maximum Ratings
0
10
2.0V
20
0.8V
30
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
Ta=+25℃
Ta=+85℃
Ta= - 55℃
20
200
400
600
800
1000
Frequency(MHz)
Attenuation VS.Control voltage
0
4
2
HExxx
3
1.VCC
2.RF input
3.VCO
4.RF output
The metal case is Ground
Attenuation(dB)
f=1000MHz
5
1
20
40
60
80
0
2
4
6
8
10
Control voltage(V)
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