JA95-N22 Audio Controller - Flight Crew - NVG
Installation and Operating Manual
Rev
B
Page 3
1.4
Specifications
1.4.1
Electrical Specifications
Power Input
Primary nominal voltage
28 Vdc
Secondary nominal voltage
14 Vdc
Maximum voltage
32.2 Vdc
Minimum voltage
10.2 Vdc
Emergency voltage
9.0 Vdc
Input current at 28 Vdc
≤
0.7 A
Input current at 14 Vdc
≤
1.4 A
1.4.1.1
Audio Performance
Rated Input Level
Receive audio rated input level
7.75 Vrms
±
10%
Direct audio rated input level
7.75 Vrms
±
10%
Direct audio 2 rated input level
2.50 Vrms
±
10%
Music rated input level
400 mVrms
±
10%
Microphone input level
250 mVrms
±
10%
Intercom Tie Line type 1 input level
340 mVrms
±
10%
Intercom Tie Line type 2 input level
1.20 Vrms
±
10%
CONFIG AUDIO input level
400 mVrms
±
10%
Rated Output Level
Phone rated output
7.75 Vrms
±
10%
Pilot Phone rated output,
in emergency mode or with power input
≤
6 Vdc
2.20 Vrms
±
10%
Phone rated output power,
with MUSIC input
3.88 Vrms
±
10%
Microphone rated output
250 mVrms
±
10%
CVR rated output
500 mVrms
±
10%
CVR rated output with input as MUSIC
250 mVrms
±
10%
CVR rated output with input as PILOT MIC
1.00 Vrms
±
10%
CVR rated output, in emergency mode,
500 mVrms
±
10%
Receive Composite rated output
2.5 Vrms
±
10%
Intercom Tie Line type 1 rated output
340 mVrms
±
10%
Intercom Tie Line type 2 rated output
1.2 Vrms
±
10%
Audio Frequency Response
Audio output audio frequency response
≤
3dB from 300 to 6000 Hz
Alert audio output audio frequency response
≤
3dB from 300 to 3000 Hz
Distortion Characteristics
Audio output distortion at rated power
≤
10%
Audio output distortion at 10% of rated power
≤3%
Input Impedance
Microphone input Impedance
150
Ω
±
10%
Direct Audio input Impedance
1000
Ω
±
10%
Direct Audio 2 input Impedance
100
Ω
±
10%
Receive Audio input Impedance
1000
Ω
±
10%
Music Audio input Impedance
1000
Ω
±
10%
Intercom Tie Line Audio input Impedance
2000
Ω
±
10%
