Q2406B

Manufacturer Part NumberQ2406B
ManufacturerWAVECOM
Q2406B datasheet
 

Specifications of Q2406B

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Page 32/81

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L1, L2, C3 and C4 has to be put near the WISMO Quik Q24x6 Series connector
and can be removed according to their environment (ground plane, shielding
...etc). The best way is to plan all the components and to remove those which
are not necessary to filter out the TDMA noise on the audio path.
2.12.1.3.2
Single-ended connection
Typical implementation:
C4
Figure 5 : MIC1 inputs (single-ended connection)
Note : V
must be very “clean” in single-ended connection (for example,
AUDIO
VCC plus filter cell like RC or LC).
R1 = from 100 to 330Ω
R2 = usually between 1KΩ and 3.3KΩ as per the V
microphone characteristics
C1 = 10pF to 33pF
C2 = C3 = C5 = 47pF to 100pF
C4 = 47µF
L1 = L2 = 100nH
R1 is used as a voltage supply filter with C4.
C5
has
to
be
the
manufacturers provide this capacitor directly soldered on the microphone.
C1, C2, C3 have to be very close to the WISMO Quik Q24x6 Series connector.
L1, and L2 has to be put near the WISMO Quik Q24x6 Series connector and
can be removed according to their environment (ground plane, shielding ...etc).
The best way is to plan all the components and to remove those which are not
necessary to filter out the TDMA noise on the audio path.
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
V
AUDIO
C3
R1
L2
C1
R2
L1
C2
C5
nearest
possible
to
24th January 2003
MIC1P
MIC1N
voltage level and the
AUDIO
the
microphone.
Microphone
Page : 32 / 81