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The AUDAC TR266 is a super shielded true isolation audio
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transformer which is especially designed to be used in highly
polluted EMI environments. Hum in audio systems is usually
caused by ground loops in the system. A common mode
current will flow in a ground loop created by an electrical
system that has grounds on different voltage potentials. This
results in a 50 Hz hum in the audio signal.The most common
method to solve these problems is an audio transformer. The
AUDAC TR266 audio isolation transformer with an in- and
output impedance of 600 Ohm and a turns ratio of 1 : 1 has a
very wide bandwidth and very low distortion which ensures a
non distorted bass response and non attenuated high
frequencies. Thanks to its MU-metal shielding, it can guarantee
the best performance in even the most EMI polluted
environments. MU-Metal is a soft ferromagnetic material with a
very high magnetic permeability. It consists of an alloy of Nickel,
Iron, Copper and Molybdenum. MU-Metal has a magnetic
shielding effectiveness going from 100x up to 1000x higher
than steel of equivalent thickness. It is especially good in
50/60hz type applications where all other shieldings fail. The
TR266 super shielded transformer can be used for applications
where the shielding of standard transformers becomes
inadequate. A typical example of such an application is the
broadcast system in railway stations.
TR266
Isolation transformer line level
System specifications:
Inputs Impedance 600 Ω
Max level at 1% THD+N (@ 1
kHz)
Outputs Impedance 600 Ω
Turn ratio 1 : 1
Bandwidth 0.8 Hz - 100 kHz
Typical distortion (@ 1 kHz) 0.001%
Frequency High cutoff (± 3 dB) 105 kHz
Low cutoff (± 3 dB) 0.8 Hz
Response (± 3 dB) 20 Hz -0.09 dB (reference 1 kHz)
THD+N (@ 20 Hz) 0.035%
20 Hz +2 dBu (0.975V)
50 Hz +10 dBu (2.449V)
20 kHz -0.10 dB (reference 1 kHz)
THD+N (@ 1 kHz) < 0.001%
Product Features:
Dimensions 31 x 24 mm (Ø x H)
AUDAC - TR266 - 27/05/2020 09:45 UTC
We reserve the right to change specifications without notice, this is part of our policy to continually improve our products.
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