ATEIS IDA8 - Manual (Page 58)

ATEIS - IDA8 58
© 2012 ATEÏS
Sensitivity:
For each channel of a configurable audio input card, there are five levels to gain the audio signal.
They are sensitivity values of 0dBu, -12dbBu, -24dBu, -40dBu and -54dBu respectively. The
meaning of sensitivity value is how large the gain is for an audio source, and to amplify the
giving minus input source to 0dBu. The figure below is an example of when the sensitivity value
is set to -54dBu, and input source is -54dBu, after the gaining circuit of the audio card you'll get
the 0dBu of output. For more information as reference, please see
this.
Maximum level = 14 dBu
Input Impedance = 10k Ohm
THD+N(Total Harmonic Distortion plus Noise)
Sensitivity Minimum Maximum Unit Frequency
0dBu - 0.04 % 20~20kHz@+4dBu
-12dBu - 0.06 % 20~20kHz@-2dBu
-24dBu - 0.06 % 20~20kHz@-14dBu
-40dBu - 0.06 % 20~20kHz@-30dBu
-54dBu - 0.06 % 20~20kHz@-44dBu
Bandwidth = 20Hz ~ 20kHz
PDC:
Maximum Output Level = 10 dBu
Output Impedance = 300 Ohm
THD @ 1kHz at output < 0.02
Bandwidth @ -3dB at output = 20Hz ~ 20kHz
Noise @ 22Hz ~ 22kHz = -85dBu
Maximum Input Level = 16 dBu
Input Impedance = 11k Ohm
THD @ 1kHz at input < 0.02
Bandwidth @ -3dB at input < 20Hz ~ 22kHz
RS232 voltages = -6.5/+6.5
Evacuation Inputs(Contact Mode):
4 status: On, Off, Open and Short
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