tea1114auh NXP Semiconductors, tea1114auh Datasheet - Page 18

• Manufacturer Part Number: tea1114auh
• Description: Low Voltage Telephone Transmission Circuit With Dialler Interface And Regulated Strong Supply
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TEST AND APPLICATION INFORMATION
2000 Mar 21
handbook, full pagewidth
Low voltage telephone transmission circuit with
dialler interface and regulated strong supply
AB
BA
C bal
220 nF
R ast1
130 k
R ast2
3.92 k
R bal1
130
R bal2
820
D1
D3
1N4004
100 nF
392
R ast3
C IR
R prot
R SLPE
20
D2
D4
peripheral
V DD
V EE
Fig.14 Basic application of the TEA1114A IC.
supply
DTMF
Dz
V d
10 V
C REG
C DTMF
220 nF
C emc
10 nF
4.7 F
R AGC
C VDD
220 F
MUTE
DTMF
SLPE
REG
AGC
V DD
LN
IR
18
MUTE
TEA1114A
Rz
Cz
V CC
n.c.
MIC
MIC
RX
GAR
V EE
QR
619
R CC
R E2
100 k
R TX3
100 F
C VCC
R E1
100 k
R TX1
R TX2
C GAR
100 pF
C MIC
C MIC
C GARS
C EAR
10 F
1 nF
FCA002
Product specification
TEA1114A
MIC
MIC
REC