HE753 Datasheet, PDF (1/1 Pages) BOWEI Integrated Circuits CO.,LTD. – 3-Bit Digital Step Attenuators

BOWEI
BOWEI INTEGRATED CIRCUITS CO.,LTD.
HE753
3-Bit Digital Step Attenuators
Features
●Frequency Range:20～200MHz
●Maximum attenuation:14dB
●Accurate attenuation
●Hermetic package DIP-14A
●Operating temperature range : -55℃ ～+85℃
Specifications( measured in a 50Ωsystem ,Vcc=±5V, TA=-55℃～+85℃)
Parameter
Symbol Unit Guaranteed Typical
Frequency Range ^fL^～fH MHz 20～200
15～200
Insertion loss
I.L
dB
3.0
2.0
Attenuation Range _A
dB _{14.0±1.0 14 .0±0.5}
Attenuation step Att
dB
2
2
Attenuation Accuracy –
dB
±0 . 3
–
VSWR
VSWR –
2.0:1
1.5:1
Control voltage Vco
–
TTL
–
Switching speed _t
us
Ton
Control Current
Icc
mA
1.
–
–
10
Typical Performance
Insertion Loss VS. Frequency
Ta=+85℃
Ta=+25℃
-1
Ta=-55℃
-2
-3
10
100
200
Frequency(MHz)
VSWR VS. Frequency
1.8
1.6
1.4
1.2
1.0
10
VSWRo
VSWRi
100
200
Frequency(MHz)
Attenuation VS. Frequency
0
2dB
4
4dB
8
8dB
12
14dB
16
10
100
200
Frequency(MHz)
Absolute Maximum Ratings
DC Supply: +6VDC
Input Power:+20dBm
Storage Temp:+125℃
Application Notes
DIP-14A
PIN Connection
PIN Function PIN Function
3 ^2dB
5 4dB
6 8dB
9～13 Gnd
4
14
8
1,2,7
VCC
RFi
RFo
N/C
1.Specificed frequency rang,attenuation
packages are available
2.Interexchangable input and output ports
3.Logic 0:Insertion Loss ; Logic 1:Attenuation
HEXXX
4.Specified attenuation step (3,6,12dB) is available
5.ESD observe handing precautions
Vcc
6.Please add power first when use,make sure control port contact with low level
● TEL:[phone] 87091887 ● FAX:[phone] ● http://www.cn-bowei.com ● E-mail:[e-mail]
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