MACOM offers four families of low cost surface
mount gallium arsenide tuning varactors. All families
have silicon nitride protected junctions for low
leakage current and high reliability.
The MA46H070 through MA46H073 family has
hyperabrupt junctions with constant gamma of 0.75
from 0 to 20 volts and very high quality factor.
The MA46H070 through MA46H073 (gamma
0.75) family of constant gamma hyperabrupt GaAs
tuning varactors has quality factor approaching that
of abrupt junction varactors, but higher capacitance
change versus tuning voltage.These diodes are
very well suited for narrower bandwidth VCOs and
VTFs where wide tuning range and very high quality
factor are required.