Q2406B

Manufacturer Part NumberQ2406B
ManufacturerWAVECOM
Q2406B datasheet
 

Specifications of Q2406B

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Page 28/81

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2.12.1.1 Common microphone inputs characteristics
The connection can be either differential or single-ended but
connection in order to reject common mode noise and TDMA noise is strongly
recommended. When using a single-ended connection, be sure to have a very
good ground plane, a very good filtering as well as shielding in order to avoid
any disturbance on the audio path.
Internal audio filter characteristics
Frequency
0-150 Hz
150-180 Hz
180-200 Hz
200-3700 Hz
>4000 Hz
The gain of MIC inputs is internally adjusted and can be tuned from 30dB to
51dB using an AT command.
Microphone gain vs Max input voltage (using controller 1)
Transmit Gain (dB)
30
33
36
39
42
45
48
51
(*) control of the transmit gain by AT commands (for WISMO Quik Q24x6
Series driven by AT commands)
confidential ©
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à
des tiers sans son autorisation préalable.
WM_PRJ_Q2400_PTS_002 - 002
Gain
< -22dB
< -11dB
< -3dB
0dB
< -60dB
Max Vin (mVrms)
43.80
31.01
21.95
15.54
11
7.79
5.51
3.9
24th January 2003
using a differential
AT+VGT(*)
0 to 31
32 to 63
64 to 95
96 to 127
128 to 159
160 to 191
192 to 223
224 to 255
Page : 28 / 81