User's Manual
Reproduction forbidden without DAI Telecom written authorization – All Right reserved – Right of modification reserved page 60 of 69
FORBIDDENVIETATE
ALL RIGHTS RESERVED
RIPRODUZIONE E DIVULGAZIONE REPRODUCTION AND DISCLOSURE
TUTTI I DIRITTI RISERVATI
PROJECT
A3
DESCRIPTION
DRAWING CODE
FORM
MODIFY
OF SHEETS
DATE
SHEET N.
VERIFIED
PROJECT
DRAWN
PATH /home/users/area
Mod. 067 rev.0 03/01
ANNOTATION
FILE NAME
B
C
D
E
A
Mobile Terminals S.p.A.
42 981 0713 1165
1Fs
BC847BW
SOT-323
Q702
2
3
1
50V
0603
1nF
X7R
C708
LQG18HN39NJ00
LQG18
39nH
L702
GND
J01001A1944
SO704
1
IO
2
3
4
5
J01001A1944
SO703
1
IO
2
3
4
5
50V
0603
39pF
COG
C705
GND
0603
10K
5%
R704
50V
0603
470pF
X7R
C729
GND
0603
47K
5%
R713
50V
0603
1nF
X7R
C706
GND GND
GND
GND
50V
0603
39pF
COG
C704
MIC_HF+
004:4D
50V
0603
1nF
X7R
C727
1215061-03F
PL702
2
1
3
50V
0603
1nF
X7R
C707
16V
0603
100nF
Y5V
C716
LGK2009-0201
LGK2009-02
SO701
3
4
2
15
GND
GND
GND
50V
0603
3.3nF
X7R
C726
1Fs
BC847BW
SOT-323
Q701
2
3
1
0603
47K
5%
R712
GND
LQG18HN39NJ00
LQG18
39nH
L703
16V
0603
100nF
Y5V
C712
16V
0603
100nF
Y5V
C721
16V
0603
100nF
Y5V
C719
16V
0603
100nF
Y5V
C718
GND
GND
0603
15K
5%
R711
+3V_EXT_MIC_SINGLE
GND
GND
1615061-08F
PL701
3
2
1
4
5
6
7
8
0603
33K
5%
R709
+3V_EXT_MIC_BAL
GND
TS3V912ID
U701
4
V-
8
V+
1
OUT
2
-
3
+
16V
0603
100nF
Y5V
C722
+3V_EXT_MIC_SINGLE
0603
47K
5%
R717
+3V_EXT_MIC_BAL
J01001A1944
SO705
1
IO
2
3
4
5
+3V_EXT_MIC_SINGLE
0603
10K
5%
R708
TS3V912ID
U701
4
V-
8
V+
7
OUT
6
-
5
+
0603
47K
5%
R715
0603
10K
5%
R707
0603
10K
5%
R720
GND
16V
0603
100nF
Y5V
C709
TS3V912ID
U702
4
V-
8
V+
7
OUT
6
-
5
+
+3V_EXT_MIC_BAL
LQG18HN39NJ00
LQG18
39nH
L701
+3V_EXT_MIC_SINGLE
16V
0603
100nF
Y5V
C714
16V
0603
100nF
Y5V
C710
4V
CONT-R
4.7uF
C701
MIC_HF-
004:3D
GND
+3V_MIC
0603
33K
5%
R710
4V
CONT-R
4.7uF
C702
16V
0603
100nF
Y5V
C720
GND
0603
470K
5%
R718
50V
0603
470pF
X7R
C728
LGK2009-0201
LGK2009-02
SO702
3
4
2
15
+3V_EXT_MIC_BAL
0603
5.6K
5%
R719
0603
1K
5%
R702
16V
0603
100nF
Y5V
C724
0603
1K
5%
R703
0603
2.2K
5%
R701
16V
0603
100nF
Y5V
C715
GND
TS3V912ID
U702
4
V-
8
V+
1
OUT
2
-
3
+
16V
0603
100nF
Y5V
C717
GND
0603
10K
5%
R706
16V
0603
100nF
Y5V
C725
0603
47K
5%
R714
GND
GND
+3V_EXT_MIC_BAL
50V
0603
39pF
COG
C703
GND
+3V_EXT_MIC_SINGLE
GND
16V
0603
100nF
Y5V
C711
0603
47K
5%
R716
GND
GND
0603
10K
5%
R705
+3V_EXT_MIC_SINGLE
16V
0603
100nF
Y5V
C713
16V
0603
100nF
Y5V
C723
EVK for GM862/S1
30208SE10944b
cs944b.cir
EXTERNAL MICROPHONE SECTION
71 00208
EXTERNAL MIC
SINGLE ENDED
SINGLE ENDED
SINGLE ENDED MICROPHONE BUFFER +10 dB BALANCED
BALANCED
BALANCED MICROPHONE POLARIZATION
SINGLE ENDED MICROPHONE POLARIZATION
NOISE FILTERING
SINGLE ENDED
EXTERNAL MIC
BALANCED
NOISE FILTERING
BALANCED MICROPHONE BUFFER +10 dB
DECOUPLING CAPACITORS
DECOUPLING CAPACITORS
EXT_MIC+
EXT_MIC-
EXT_MIC
SINGLE ENDED
EXT MIC POWER SELECTION
BALANCED
EXT MIC SELECTION
Serdi M. 041201
041201
301101
Locatelli M.
Deperini F.