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18GHz Attenuator
PSPL5510 Datasheet
The PSPL5510 Attenuators address a need that has been
totally ignored by other microwave component manufacturers
who specify their products in the frequency domain, but
ignore the time domain responses. For time domain
measurements, it is important to also know the transient
response of attenuators used in a test set-up. These SMA
attenuators have 8 ps risetimes and are recommended for
measuring pulses with risetimes of 25 ps or slower. For
frequency domain measurements, the useful frequency
range is DC to 18 GHz. The 6 dB, 12 dB, 14 dB, and 20 dB values are popular for use as
oscilloscope attenuators because they give simple, integer, voltage ratios of 2x, 4x, 5x, and
10x, respectively.
Key performance specifications
■ SMA DC to 18 GHz
■ 8 ps Riset ime
Specifications
Parameter
Value
Values avai lable
1,2, 3, 6, 10, 12, 14, and 20 dB
Frequency range
DC to 18 GHz
Connectors
SMA
Rise time (10% to 90%)
(see Typi cal . pl ots )
8 ps typical , wh en tes t ed with 20 ps rise time pulse
Impedance - DC
50 Ω, < ±1 Ω typical, +7.5 Ω, -6.5 Ω maximum
Delay
74 ps, 1 – 12 dB (see typical group delay plots)
83 ps, 14 & 20 dB (see typical group delay plots)
DC Attenuation accuracy
±0.3 dB, 1 – 6 dB
±
0.5 dB, 10 – 20 dB, max. limits
Return loss –DC
VSWR – DC
> 40 dB typ, 23 dB min
< 1.02 t yp, 1.15 max
Attenuation Flatness
(see Typi cal . pl ots )
< ±0.3 dB, 1-6 dB
< ±0.6 dB, 10-20 dB
Return Loss – AC
(see Typi cal . pl ots )
> 23 dB, f < 4 GHz
> 15 dB, f < 18 GHz
Max. Power Input
2 W avg at 25C, derat ed linearly to 0.5W at 125C, 250 W peak, < 5 µs pulse
PSPL5510 18GHz Attenuators
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Parameter
Value
Temperature Range
-65 C to +125 C operating and storage, 0.0001 dB/dB/C temp. coeff.
Dimensions & Weight
19.2 mm, 4.1 gm (1-12 dB) 22.5 mm, 4.9 gm (14 & 20 dB), 5/16" hex body
Material
stainless steel
Serial Number
no
Warranty
One Year
Note: All parameters listed are typical unless maximum or minimum guaranteed limits are
provided.
Ordering information
Model Description
PSPL5510V 18 GHz Attenuator
Options
■ Opt. 1DB Atten uation 1dB
■ Opt. 2DB Atten uat ion 2dB
■ Opt. 3DB Atten uat ion 3dB
■ Opt. 6DB Atten uat ion 6dB
■ Opt. 10DB Atten uation 10dB
■ Opt. 12DB Attenuat ion 12dB
■ Opt. 14DB Attenuat ion 14dB
■ Opt. 20DB Atten uation 20dB
Datasheet
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Typical Performance
Insertion Loss, S
21
0.2 dB/div, 6.5 GHz/div
Group Delay, S
21
2 ps/div, 6.5 GHz/div
Return Loss, S
11
5 dB/div, 6.5 GHz/div
PSPL5510
Opt. 3DB
PSPL5510
Opt. 6DB
PSPL5510
Opt. 10DB
PSPL5510
Opt. 20DB
PSPL5510 18GHz Attenuators
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* European toll
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29 May 2014 1PW-30545-0
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