HE412B Datasheet, PDF (1/1 Pages) BOWEI Integrated Circuits CO.,LTD. – Voltage Variable Attenuators

BOWEI
BOWEI INTEGRATED CIRCUITS CO.,LTD.
HE412B
Voltage Variable Attenuators
Features
●Thin film coustraction
●Hermetic package TO-8B
●Operating temperature range: -55℃ ～+85℃
Specifications( measured in a 50Ωsystem ,Vcc=+15V, TA=-55℃～+85℃)
Parameter
Symbol Unit Guaranteed Typical
Frequency Range ^fL^～fH MHz 20～1000
–
Attenuation(Max) AMax dB
24
26
Insertion loss
IL
dB
2.0
1.5
VSWR of input/output VSWR ^–
2.0:1
1.5:1
DC Supply
VCC
V
–
+15
DC Current
ICC
mA
–
14
Control voltage VCO
V
–
0～15
Control Current ICO
mA
–
0～7
Typical Performance
Attenuation VS. Frequency
0
15V
1.5V
10
20
0.8V
0.7V
30
0V
40
50
60
70
0
200 400 600 800 1000
Frequency(MHz)
VSWR VS. Frequency
2.2
2.0
1.8
VSWRo
1.6
VSWRi
1.4
1.2
1.0
0
200 400 600 800 1000
Frequency(MHz)
Attenuation VS. Temperature
0
Absolute Maximum Ratings
DC Supply: +18VDC
Input Power:+20dBm
Storage Temp:+125℃
51
4
2
3
TO- 8B
Application Notes
1.Functional schematic shown as following,which include
an internal coupling capacitor.
2.Interexchangable input and output ports
3.Cascaded with amplifier can be used as VGC amplifier
4.See assembly section for mounting method
6
1.5V
12
1V
18
Ta=+25℃
Ta=+85℃
Ta= - 55℃
0
200 400 ^{600 800 1000}
Frequency(MHz)
Attenuation VS .Control voltage
0
f=1000MHz
10
15
1.VCC
4.RF output
2
4
HExxx
2.RF input 5.VCO
3
3.GND
20
30
0
3
6
9
12 15
Control voltage(V)
● TEL:[phone] 87091887 ● FAX:[phone] ● http://www.cn-bowei.com ● E-mail:[e-mail]
9