U4030B Datasheet, PDF (10/14 Pages) TEMIC Semiconductors – Telephone Speech Circuit

IVM
CVM
10 m
CR
PR 2
2.2 m
680
R4
12 k
CLIM
470 n
PR 1
33 k
CRNW 2 _{RNW 2 RNW 3} CRNW 3
CK
68 n
U 4030 B
VM
VD
VC
RDC
CLIM SWAMP
CK
PD
ST
PRIV
GR
RECO
MUTE
VL
GND
MIC 2
MICO
DTMF
MIC 1
GS
RS 1
VC
10 m
10
ID
CVD 1000 m
RSWAMP
68
VPRIV
RIMP
RL
IL
15 V
1k
600
68 n
47 m
VL
100 m
18 k
100 n
2.7 k
CRNW4
53 n
RNW 4
390
100 n
CRECO
10 m
ROUT
150
ZEAR
68 n
12 k
VMUTE
DTMF
470 n
RS2
430
CS
2.2 m
ZM
68 n
MIC 1
MIC 2
DTMF
VMIC