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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 converter,
Converting standard DC input voltages
into mA of current to tune a magnetic tuning coil.
POSITIVE
INPUT DRIVERS
MD Series
MICRO LAMBDA positive digital drivers are available
for military environments. Standard products
provide for 12 bit TTL tuning input and operate
over -40° to +85°C temperature range.
Units incorporate a Mil-grade 25 pin control connector
and filter feedthroughs in the driver housing
to minimize EMI leakage.
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The MD 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 inclusion 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 tuning speed of YIG-oscillators
can be included to provide both fast-tuned and
with good accuracy. Filter parameters can be
maximized during factory alignment to meet customer
specific requirements.
AVAILABLE
OPTIONS FOR MD-SERIES
MILITARY DIGITAL DRIVERS
- Customer
Defined "Truth" Table
- Latched
TTL
- Negative
Input Drivers
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