Northern-airborne-technology AA12S User Manual download pdf (Page 7)

AA12S Series Compact Audio Controller

SM12S Installation and Operation Manual

Section 1 Rev: 1.00 Issue 4 Page 1-4

ENG-FORM: 800-0114.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

Audio Performance

As per RTCA DO-170 Product Classification 1a except where noted.

* Manufacturers Specification ** Exceeds DO-170 requirement

Rated Output Power 100 mW min. into 300 Ohm (each stereo channel)

Audio frequency Response

Receive ≤3dB down from 350 - 6000 Hz

Intercom ≤3dB down from 350 - 3000 Hz

ICS Tie ≤3dB down from 350 - 3000 Hz

Music ≤3dB down from 300 - 15000 Hz

(Music Bass control at mid setting)

Distortion ≤10%, ≤3 % typical (350 to 6000 Hz)

Input

Input crosstalk -37 dB max*

Output crosstalk -55 dB max

Mic crosstalk <200 μVrms*

Audio noise -60 dB max**

Output Regulation ≤3 dB variance (350 to 6000 Hz)

Audio Communication Loud & Clear

ICS Volume controls <35 dB range*, 40 dB nominal

Music Volume controls <35 dB range*, 40 dB nominal

Receive Input impedance 1 kOhm ±10 %

Mic Input impedance 150 Ohm ±10 %

Music Input impedance 11 kOhm ±10 %

ICS Tie Line 2 kOhm ±10 %

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Northern-airborne-technology AA12S User Manual Page 7