HSMP-3810 Avago Technologies US Inc., HSMP-3810 Datasheet - Page 5

• Manufacturer Part Number: HSMP-3810
• Manufacturer: Avago Technologies US Inc.
• Type: Attenuatorr

Specifications of HSMP-3810

• Configuration: Single
• Operating Temperature Classification: Military
• Reverse Voltage: 100V
• Package Type: SOT-23
• Mounting: Surface Mount
• Operating Temperature (max): 150C
• Operating Temperature (min): -65C
• Pin Count: 3
• Applications Frequency Range: VHF/UHF/SHF
• Lead Free Status / RoHS Status: Not Compliant

Typical Applications for HSMP-481x Low Inductance Series (continued)
Co-Planar Waveguide Shunt Connection for HSMP-481x
Series
Co-Planar waveguide, with ground on the top side of the
printed circuit board, is shown in Figure 10. Since it elimi-
nates the need for via holes to ground, it offers lower shunt
parasitic inductance and higher maximum attenuation
when compared to microstrip circuit.
Figure 10. Circuit Layout.
Figure 11. Equivalent Circuit.
5
R
j
0.75 nH
0.3 pF
Co-Planar Waveguide
Center Conductor
Groundplane
Groundplane
Equivalent Circuit Model
HSMP-381x Chip*
R
C
I = Forward Bias Current in mA
R
*See AN1124 for package models.
T
T
j
=
= 2.5 + R
= C
80
I
P
0.9
+ C
Ω
j
j
2.5 Ω
R
s
* Measured at -20 V
0.18 pF*
R
C
j
j