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Rbal2
820 Ω
Cbal
220 nF
RVCIL
LV0
360 kΩ
Zimp
Rbal1
RSLPE
20 Ω
CREG
4.7 µF
CVBB
CVDD
RVCIH
LV1
D2
D3
Dz
Vd =
10 V
Cemc
10 nF
620 Ω
Cimp
22 µF
130 Ω Rast3
470 µF
47 µF
180 kΩ
Rast2 392 Ω
3.92 kΩ CIR
SLPE
18
IR
21
REG
20
AGC LN VBB
22
19 14
VDD
23
EVCI LVCI
4
5 BPC
3
LV2
BPC
from
microcontroller
Rast1 100 nF
130 kΩ
PD
1
HFC
40
PD
HFC
MICS
RMICP
1 kΩ Ctx2 Rtx2
MICS 24
CMICS
4.7 µF
MIC+ 34
2 MUTE
EARO
36
MUTE
CGAR
CQR
10 µF
Re2
A
handset
micro
CMICH
33 nF
22 nF 15 kΩ
Ctx1 Rtx1
Rtx3
8.2 kΩ
MIC− 33
22 nF 15 kΩ
B
RMICM
1 kΩ
CHFTX
HFTX 39
from
100 nF
TXO 29
TEA1098A
GARX
37
RECO
38
100 pF 100 kΩ
Re1
100 kΩ
Crxe
100 nF
CHFRX
CGARS
1 nF
MICS
RGATX
6 HFRX
100 nF
handsfree
micro
RBMICS
2 kΩ
CTXIN
30.1 kΩ
CMICB 100 nF
33 nF
CDTMF
100 nF
GATX 30
TXI 31
DTMF 35
GALS
15
RGALS
255 kΩ
LSAO
16
RSEN
11
CGALS
150 pF
CLSAO
220 µF
TSEN 9
RENV
12
TENV
8
RNOI
10
D1
D4
RTSEN
10 kΩ
TNOI
7
17
GND
32
GNDTX
25
STAB
26
SWR
13
DLC
IDT
28
27
SWT
RIDT
2.2 MΩ
RRSEN
10 kΩ
CTSEN
100 nF
CTENV
470 nF
CTNOI
4.7 µF
RSTAB
3.65 kΩ
RSWR
365 kΩ
CDLC
470 nF
CSWT
220 nF
CRNOI CRENV CRSEN
4.7 µF 470 nF 100 nF
FCA146
Fig.17 Basic application diagram.