TEA1066T Philips Semiconductors (Acquired by NXP), TEA1066T Datasheet - Page 17

• Manufacturer Part Number: TEA1066T
• Description: Versatile Telephone Transmission Circuit With Dialer Interface
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
APPLICATION INFORMATION
handbook, full pagewidth
1996 Apr 04
telephone
Versatile telephone transmission circuit
with dialler interface
Typical application of the TEA1066, shown with a piezoelectric earpiece and DTMF dialling. The bridge to the left and R10 limit the current into the
circuit and the voltage across the circuit during line transients. Pulse dialling or register recall require a different protection arrangement.
line
BAS11
BZW14
(2x)
(2x)
R10
13
R2
130 k
R3
3.92
k
Z bal
R4
100 nF
C7
100 pF
C5
390
R8
R11
C4
1 nF
9, 10
7, 8
13
4
5
6
20
Fig.14 Application diagram.
R9
IR
QR
QR
GAR
MICL /MICH
MICL /MICH
SLPE
20
100 pF
C6
LN
GAS1 GAS2
1
17
2
3
R7
TEA1066T
REG
620
18
R1
C3
4.7 F
AGC
19
R6
STAB
V CC
11
R5
3.6 k
17
MUTE
V EE
DTMF
100 F
PD
12
MBH129
Product specification
C1
15
16
14
TEA1066T
from dial
control
circuits
and