Electret microphone M-0906G

Purpose and scope

The electret microphone M-0906G (hereinafter “microphone”, please refer to photo 1) converts the acoustic signal into the electric one.

The design feature of the microphone is the presence of a “gooseneck” or a flexible tube, which provides the ability to quickly adjust the microphone head for the certain operator (driver). This allows the driver to announce voice massages while driving a vehicle without taking the microphone in the hands, which makes the operation more comfortable and definitely increases the traffic safety.

The microphone can be used as a part of products operating under conditions of shaking and vibration, for example, on the transport vehicles in the voice announcement systems VAS-0650, VAS-0651.

Standard delivery set

 1. Microphone M-0906G  1 pc.
 2. Cable connector  1 pc.
 3. Operation manual   1 pc. (can be the part of the operation manual of another device with which the microphone is used)

Basictechnical specifications

No.

Name

Designation

Value

1

End-to-end frequency range

FlFh

not narrower than 200 … 12000 Hz

2

Rated (nominal) output level (supply voltage 5 V, load resistance 1 kΩ)

Unom

0,1 V

3

Max. output level (supply voltage 5 V, load resistance 1 kΩ, 1 kHz)

Umax

not less than 1,5 V

4

Min. current consumption

Imin

not more than 5 mA

5

Max. current consumption (supply voltage 5 V, load resistance 1 kΩ)

Imax

not more than 6 mA

6

Rated voltage

Umax

+5 V

7

Supply voltage range

Umin – Umax

+(4…6) V

8

Operating temperature range

°C

-40…+80

9

Diameter of the head / tube / cap, microphone length

 

not more than Ø 23 / 8 / 19 mm, 570 mm

10

Weight

m

not more than 0,1 kg

Principle of operation

The acoustic signal is converted by the microphone into the electric one with the electret capsule and then given to the pre-amplifier with the fixed gain.

Structurally the microphone is made in the form of a stand with a head, which is connected to the metal base cap via the “gooseneck” (a flexible tube). The preamplifier board and a connector are mounted in the metal base cap.

The microphone (photo 1, photo 2) is switched on by pushing the button which can be installed in any place convenient for driver.

By turning the microphone on the red ring at its head lights up with a faint glow.

Depending on the devices the microphone works with, the connection cables have two versions:

version 1: straight connector XLR

version 2: connector XLR with extension cable

Warranty

The warranty period of operation is one year from the date of sale, subject to the consumer observing conditions of operation, transportation and storage.

The calculation of the warranty period, unless otherwise specified in a special contract, is carried out from the moment of receipt of the product which is fixed by the date and Recipient’s signature in the consignment note of a forwarding agent (delivery man).

The warranty does not apply to products in which the detected defects are the result of mechanical damage resulting from careless or incautious handling, damaging to the paint coating of the PCBs or unauthorized change of radioelements.

The warranty does not apply to the products with a modified electronic serial number, if any.

Average lifetime – not less than 5 years.

Pinout scheme of the XLR connector

Pinout No. of the XLR connector

Name of the signal

1

Ground

2

Power supply +5 V

3

Output

 

 Pic. 1 XLR connector