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MICRO LAMBDA YIG Filters, model types MLFP
Series and
MLFR-series are available with integrated
digital driver circuits.
MICRO LAMBDA drivers eliminate the need for
customers to design or develop their own driver
circuits and sophisticated test and alignment procedures.
Integrating a driver at MICRO
LAMBDA’s factory ensures that peak performance
will be achieved at the time of manufacture.
Alignment and compensation with the particular
YIG filter can be maximized down to the component
level.
All drivers in this series provide input voltage
regulators, and compensation circuits to improve
frequency drift.
YIG drivers act as Digital Word-To-Current convert,
Converting standard 12 bit binary numbers
into mA of current to tune a magnetic tuning coil.
POSITIVE
INPUT DIGITAL DRIVERS
PD Series
MICRO LAMBDA positive drivers are available
for commercial environments. Standard products
provide 12 bit TTL tuning input and operate over
the 0° to 65° temperature range.
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The PD series of digital drivers provide the main
coil current from the +15 volt input line. Current
increases linearly from 0 mA = 0 GHz at a rate of
approximately 50 mA per 1 GHz. A 2-8 GHz filter
will require 100 mA @ 2 GHz and 400 mA @ 8
GHz.
Negative input drives which provide the main coil
current on the –15 volt input line, are available as
an option.
Frequency drift performance can be minimized
with the inclusive temperature compensation circuits
within the driver. This yields filter/driver
combinations set at the factory with excellent frequency
accuracy performance.
In special cases, speed-up circuits like those
used to improve the tuning speed of YIG oscillators
can also be included to provide both fasttuned
filters and with good accuracy. Filter parameters
can be maximized during factory alignment
to meet customer specific requirements.
AVAILABLE
OPTIONS FOR PD-SERIES
COMMERCIAL DIGITAL DRIVERS
- Customer
Defined "Truth" Table
- Latched
TTL
- Negative
Input Drivers
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