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ATEIS IDA8 User Manual

Page 39

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Product Features

39

© 2012 ATEÏS

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

EIN(Equivalent Input Noise)

Sensitivity

Minimum

Maximum

Unit

Frequency

0dBu

-

-81

dBu

20~20kHz@150Ω

-12dBu

-

-93

dBu

20~20kHz@150Ω

-24dBu

-

-104

dBu

20~20kHz@150Ω

-40dBu

-

-112

dBu

20~20kHz@150Ω

-54dBu

-

-115

dBu

20~20kHz@150Ω

Configurable Audio Input:

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.

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