VAS0725H*2*
Miniature Variable Attenuator
International invention patent
Manual Step Attenuator
u DC to 5.8GHz
u 0 to 25.5dB in 0.5dB Step
u 2 Watt
u Connector Type: SMA,N,TNC,F,BNC etc. available
Features
n
n
Using advanced microstrip technology, ultra-small size
Attenuation values are adjustable in a power-on state, no
sudden big reflection.
It adopts an innovative technology, and thus it eliminates
sudden big reflection in attenuators when attenuation is
being adjusted, preventing the preliminary RF circuit from
being burnt, and keeping the system stable
Step values: 0.5 dB,1dB, 2dB, 4dB, 8dB,10dB
52 attenuation values
High attenuation accuracy, low insertion loss
High adjustment accuracy
Low cost – High Performance
Adjusting the transmitting (receiving) distance of RF
signal precisely. Adjusting accuracy is limited to 5cm.
Switch repeatability avg.> 10000 operations (5000 cycles)
per switch.
PC(Polycarbonate) Switch, operating temperature of
120℃ is available.
n
n
n
n
n
n
Specifications
Frequency Range
Attenuation
DC to 5.8GHz
0 to 25.5dB
0.5dB
Step Value
Insertion loss at 0dB (typ.)
2.2dB DC to 4 GHz
2.5dB 4 to 5 GHz
3.5dB 5 to 5.8 GHz
n
n
n
Attenuation Accuracy (typ.)
Attenuation values are adjustable in a power-on state,
test data can be read continuously, no interruption.
0 to +3.30dB 3GHz to 4GHz
0 to +5.00dB 4GHz to 5GHz
0 to +6.00dB 5GHz to 5.8GHz
Characteristic
For example the testing curves of VAS0725HS22 of 25.5dB
Nominal Impedance 50 Ohm
Average Power 2 Watt
Operating Temperature -40℃ to +85℃
VSWR(:1)
Freq. Range (GHz)
Typ.
1.15
1.35
Max.
DC to 4
1.45
1.60
4 to 5.8
Yantel Corporation
Add:3F, Building 3, Southern District 2 of ZhongGuan Honghualing Industrial Park, Xili, Nanshan, Shenzhen, China
Tel:86-755-8355-1886 Fax:86-755-8355-2533
Rev A3.0
For detailed performance specs & shopping online see Yantel web site : www.yantel-corp.com
1 / 4