U4030B Datasheet, PDF (12/14 Pages) TEMIC Semiconductors – Telephone Speech Circuit

VDTMF
AC
470 n
CVM
10 m
CLIM
470 n
CR
2.2 m
R4
12 k
PR2
680
PR1
33 k
CRNW2
RNW2
100 n ^{18 k}
RNW3
2.7 k
RNW4
390
CRNW4
100 n
CRNW3
100 n
CRECO
10 m
ROUT
150
ZEAR
68 n
VC
10 m
U4030B
VM
VD
VC
RDC
CLIM SWAMP
CK
PD
ST
PRIV
GR
RECO
MUTE
VL
GND
MIC2
MICO MIC1
DTMF
GS
RS1
12 k
CSLP
1.5 n
IMUTE
VMUTE
CK
68 n
RDC
10
ID
CVD 1000 m
RSWAMP
IPD 68 _VPRIV
15 V
68 n
ZM
68 n
RS2
430
CS
2.2 m
RIMP ZR
1k
IL
47 m
100m ^VL