HE751-025 Datasheet, PDF (1/1 Pages) BOWEI Integrated Circuits CO.,LTD. – 6-Bit Digital step Attenuators

BOWEI
BOWEI INTEGRATED CIRCUITS CO.,LTD.
HE751-0.25
6-Bit Digital step Attenuators
Typical Performance
Features
●Frequency Range:30～500MHz
●Thin film coustraction
●Hermetic package DIP-16
●Operating temperature range : -55℃ ～+85℃
Insertion Loss VS. Frequency
-3
-4
-5
-6
Ta=+85℃
Ta=+25℃
Ta=-55℃
15
250
500
Frequency(MHz)
VSWR VS. Frequency
Specifications( measured in a 50Ωsystem ,Vcc=+5V, TA=-55℃～+85℃)
Parameter
Symbol Unit
Frequency Range ^fL^～fH MHz
Insertion loss
I.L dB
Attenuation
Att
dB
Attenuation step ^–
dB
Guaranteed
30～500
6.0
31.75±0.5
0.25,0.5,1,
2,4,8,16
Typical
30～500
5.0
31.75±0.2
0.25,0.5,1,
2,4,8,16
Attenuation
Accuracy
±0.15(0.25,0.5,1,2) ±0. 1
–
dB _{±0.3(4,8,16,)}
±0 . 2
VSWR
VSWR –
Control voltage Vco –
Switching speed
t
us
Ton
DC Current
Icc
mA
“ △ ” Measured at TC=24±1℃
2.0:1
TTL
3.0
20
1.3:1
–
2.0
15
Absolute Maximum Ratings
DC Supply: +6VDC
Input Power:+20dBm
Storage Temp:+125℃
8 7 6 5 4 3 21
9 10 11 12 13 14 15 16
DIP-16
Application Notes
1.Specificed frequency rang,attenuation
packages are available
2.Interexchangable input and output ports
3.Logic 0:Insertion Loss ; Logic 1:Attenuation
4.Minimun attenuation step 0.5dB and 6 bits digital
attenuator is available
5.ESD observe handing precautions
6.Please add power first when use,make sure control port
contact with low level
1.8
1.6
1.4
1.2
1.0
15
VSWRo
VSWRi
250
500
Frequency(MHz)
Attenuation VS. Frequency
0
0.25dB
1dB
0.5dB
2dB
5
4dB
8dB
10
15
16dB
15
250
500
Frequency(MHz)
PIN Connection
PIN Function PIN Function
8 ^0.5dB
1
7 1dB
9
6
2dB
16
5
4dB 10-15
3 ^0.25dB 4
2 ^16dB
8dB
RFi
RFo
GND
VCC
HEXXX
● TEL:[phone] 87091887 ● FAX:[phone] ● http://www.cn-bowei.com ● E-mail:[e-mail]
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