Avionics and Telemetry:
PRL line drivers, receivers, and fanout buffers are used by aircraft
manufacturers, contractors, spaceports, and airbases around the world
for flight test, avionics integration, telemetry buffering and
translation. Our differential buffers can transmit signals as far as
200' at up to 300 MHz, while immunizing the signal from noise and/or
ground potential mismatches. Single-ended TTL buffers can drive up to
100' of cable at 85 MHz. Fanout buffers can drive several units from a
single source, including conversion from high-impedance to 50 Ω drive
capability.
|
Our most common avionics/telemetry application is conversion of a
single-ended signal to differential, for more robust transmission
through noisy and/or long transmission paths. The differential signaling
rejects common mode noise and accommodates minor differences in ground
potential between driver and receiver. In many cases conversion back to
single-ended is required as well, and can be accomplished with a
matching receiver.
Popular models include:
|
 |
- PRL-420TD,
2 Ch., TTL to differential TTL
- PRL-420RS,
2 Ch., TTL to RS-422
- PRL-426T,
2 Ch., TTL to LVDS
- PRL-420ND,
2 Ch., TTL to differential ECL
- PRL-430N,
2 Ch., single/differential ECL line driver
- PRL-425T, 2
Ch., Universal Differential Receiver with TTL outputs
More models are available on the
Line Drivers
and Translators pages.
|
|
Another popular application is conversion of signals to drive 50 Ω
loads. Many signal sources will not drive 50 Ω loads, will not drive
long 50 Ω cables, or will suffer from signal reflections when driving
long cables into high-impedance loads. PRL line drivers are designed for
driving 50 Ω cables and loads, and they included 50 Ω back-termination
for absorbing reflections from high-impedance receivers.
Popular models include:
|
- PRL-444, 4
Ch., TTL/CMOS Line Driver with High Input Impedance
- PRL-414B,
1:4 TTL/CMOS Fanout Line Driver with 1 kΩ/50 Ω selectable input
A complete list of models is available on
Line Drivers page.
|
|
Test environments commonly require a single signal source to drive to multiple receivers, such as
the UUT, logic
analyzers, oscilloscopes, etc. Fanout buffers are different from RF
splitters (even active splitters) because fanout buffers regenerate
clean logic signals. Popular models include:
|
 |
|
A complete list of models is available on
Fanout Buffers page.
|
Thank you for visiting PRL, and please browse the rest of the site for
solutions to a variety of pulse, data, and trigger applications. |
