U4030B Datasheet, PDF (11/14 Pages) TEMIC Semiconductors – Telephone Speech Circuit

DTMF
VC
470 n
10 m
CVM
10 m
CR RR2
2.2 m 680
CLIM
470 n
RR1
33 k
CRNW2 _RNW2
100 n _{18 k}
RNW3
2.7 k
CRNW3
100 n
C
470 n
VGEN
RNW4
390
CRNW4
53 n
VEAR
U 4030 B
VM
VD
VC
RDC
CLIM SWAMP
CK
PD
ST
PRIV
GR
VL
RECO GND
MUTE
MICO
DTMF
RS1
MIC2
MIC1
CS
12 k
CRECO
10 m
ROUT
150
ZEAR
68 n
CK
68 n
RDC
10
CVD
1000 m
RSWAMP
68
15 V
68 n
RS2
430
CS
2.2 m
ZM
MIC1
68 n
MIC2
RIMP
1k
47 m
RL
600
100 m
IL
VGEN