Limited Internal TECHNICAL DESCRIPTION Prepared (also subject responsible if other)
No.
Albin Dennevi
1/1301-HMP072/1
Approved
Date
Rev
2014-09-10
A
1 (5)
Reference
Technical description MX-MIC
Table of Contents 1 General description............................................................................................................. 2 2 Connectors......................................................................................................................... 2 3 Features............................................................................................................................. 4 4 Power................................................................................................................................. 5 5 LED indicators.................................................................................................................... 6 6 Enclosure............................................................................................................................ 6 7 Mounting............................................................................................................................. 6 8 Environment........................................................................................................................ 6
Limited Internal TECHNICAL DESCRIPTION Prepared (also subject responsible if other)
No.
Albin Dennevi
1/1301-HMP072/1
Approved
Date
Rev
2014-09-10
A
1
General description
1.1
Features
1.2
–
Omni directional sensitive microphone
–
Internal microphone amplifier to support long cables
–
One green LED indicating audio recording
–
One green/yellow biLED for general purpose
–
Push button connected to digital output
–
Wide input voltage range, 8-36 V
2 (5)
Reference
Intended use Intended as a peripheral to a vehicle computer, i.e. MX-4. Designed for automotive environment, with omni directional microphone and internal audio amplifier to support long unshielded cables.
2
Connectors
2.1
Connection layout
Limited Internal TECHNICAL DESCRIPTION
2.2
Prepared (also subject responsible if other)
No.
Albin Dennevi
1/1301-HMP072/1
Approved
Date
Rev
2014-09-10
A
3 (5)
Reference
Connector Pin Function
Comment
1
MIC-P
Analog audio output, positive
2
MIC-N
Analog audio output, negative
3
N/A
Not in use
4
N/A
Not in use
5
OUTPUT-BUTTON
Push button output
6
GND
Ground reference for button and inputs
7
INPUT-ON
Input for green LED and audio amplifier
8
INPUT-VOLTAGE
Input voltage for push button (*)
9
INPUT-POWER-LED-YELLOW
Input for yellow LED in biLED
10
INPUT-POWER-LED
Input for green LED in biLED
(*) Note: Not needed if one of the other three inputs is high.
Mating connector:
JAE IL-AG5-10S-S3C1
Connector on MX-MIC:
JAE IL-AG5-10P-S3L2
Limited Internal TECHNICAL DESCRIPTION Prepared (also subject responsible if other)
No.
Albin Dennevi
1/1301-HMP072/1
Approved
Date
Rev
2014-09-10
A
3
Features
3.1
BiLED
4 (5)
Reference
The biLED is on when voltage on INPUT-POWER-LED or INPUT-POWER-LED-YELLOW is above ~2 V, but needs at least ~12 V to not be dimmed down. 3.1.1
Audio amplifier and green LED The audio amplifier will be functional down to ~3 V, but at least 5 V is recommended. At lower voltage then ~12 V, the green LED will be slightly dimmed down. The microphone is specified to work well within the frequency range 50 Hz to 16 kHz.
3.2
Output from push button The voltage at the OUTPUT-BUTTON pin is 0 V when button isn't pushed. When the button is being pushed, the voltage at the OUTPUT-BUTTON pin is about ~0.6 V lower then the highest input voltage. All four inputs can be used to power the button, INPUT-ON, INPUTVOLTAGE, INPUT-POWER-LED and INPUT-POWER-LED-YELLOW. INPUT-VOLTAGE is the only input which powers the button without activating any other function.
4
Power
4.1
Power consumption
4.1.1
Consumption on INPUT-VOLTAGE Nothing except the button is being used. The current drawn on the OUTPUT-BUTTON output will of course be reflected here, but if the OUTPUT-BUTTON output doesn't supply any current, the consumption on INPUT-VOLTAGE is zero. 0 mA @ 24 V 0 mA @ 12 V
4.1.2
Consumption on INPUT-ON Green single LED is on, audio amplifier is on and biLED is off. 16mA @ 24 V 8mA @ 12 V
4.1.3
Consumption on INPUT-POWER-LED or INPUT-POWER-LED-YELLOW INPUT-ON is low, so green single LED is off and audio amplifier is off. Green or yellow LED in biLED is on. 17 mA @ 24 V 8 mA @ 12 V
4.2
Input voltage Input voltage range: 8 – 36 V DC 12-30 V is the recommended input voltage.
Limited Internal TECHNICAL DESCRIPTION
5
Prepared (also subject responsible if other)
No.
Albin Dennevi
1/1301-HMP072/1
Approved
Date
Rev
2014-09-10
A
5 (5)
Reference
LED indicators One green LED and one green/yellow biLED indicate the status for the MX-MIC.
6
–
MIC. Indicates that INPUT-ON is high, and therefor the internal audio amplifier is on.
–
FUNC-Green. General purpose, on when INPUT-POWER-LED is high.
–
FUNC-Yellow. General purpose, on when INPUT-POWER-LED-YELLOW is high.
Enclosure Material:
Alumina body with plastic sides.
Coating:
Black powder coating
Dimensions: 45x25x44 mm
7
Weight:
42 g
IP-class:
IP30
Mounting Two pieces of Velcro tape is included in the delivery, which can be used to fix the unit to a dashboard in a vehicle or similar.