Mercedes-Benz Viano Taxi, Руководство владельца дополнения

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Technical data
Electret microphone
4
1
Guidelines; the level depends greatly on the speech patterns of the individual and background noise.
Technical data
Microphone model AKG/Q 400 MK II T
Operating temperature –25°C to +70 °C
Transmission range 300 Hz to 6,500 Hz
Directional characteristic unidirectional
Impedance < 100
Ω
Microphone operating voltage U
DC
= 4.0 V
DC
±0.2 V
Current draw
(if U
B
= 8 V
DC
and R
L
= 680
Ω
)
I
max
=6 mA ±0.4 mA
Sensitivity
(0 dB = 10 V/Pa; f = 1 kHz)
600 mV/Pa
Microphone level with normal background noise
1
Voice level Voice signal
Normal 70 dB SPL 50 mV
Maximum 90 dB SPL 400 mV