HSMP3802TR1 Avago Technologies US Inc., HSMP3802TR1 Datasheet - Page 10

• Manufacturer Part Number: HSMP3802TR1
• Manufacturer: Avago Technologies US Inc.
• Type: Attenuator/Switchr

Specifications of HSMP3802TR1

• Configuration: Dual Series
• Power Dissipation: 250mW
• 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
• Lead Free Status / RoHS Status: Not Compliant

Co-Planar Waveguide
Shunt Connection for
HSMP-48XX Series
Co-Planar waveguide, with
ground on the top side of the
printed circuit board, is shown
Microstrip Shunt
Connections for
HSMP-48XX Series
In the diagram above, the
center conductor of the
microstrip line is interrupted
and leads 1 and 2 of the
Figure 33. Circuit Layout.
Figure 35. Circuit Layout.
50 OHM MICROSTRIP LINES
PAD CONNECTED TO
GROUND BY TWO
VIA HOLES
Co-Planar Waveguide
Groundplane
Center Conductor
Groundplane
in the diagram above. Since it
eliminates the need for via holes
to ground, it offers lower shunt
parasitic inductance and higher
maximum attenuation when
compared to a microstrip circuit.
HSMP-38XX series diode are
placed across the resulting gap.
This forces the 0.5 nH lead
inductance of leads 1 and 2 to
appear as part of a low pass
filter, reducing the shunt
parasitic inductance and
increasing the maximum
available attenuation. The 0.3 nH
of shunt inductance external
to the diode is created by the via
holes, and is a good estimate for
0.032" thick material.
Figure 34. Equivalent Circuit.
Figure 36. Equivalent Circuit.
10
1.5 nH
*0.8 pF TYPICAL FOR HSMP-4820
*0.8 pF TYPICAL FOR HSMP-4820
0.3 nH
0.3 nH
0.75 nH
0.3 pF*
0.3 pF*
1.5 nH