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
μ
Vrms*
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 %
