Philips Semiconductors
Call progress monitor for line powered
telephone sets
APPLICATION INFORMATION
An application of the TEA1083/83A, in conjunction with a
member of the TEA1060 family, is illustrated in figure 11.
The TEA1083/83A is used for call progress monitoring
during on-hook dialling. The dialling facilities are
performed by a microcontroller (e.g. PCD3344,
PCD3349).
Only the most important components have been shown.
For detailed information refer to a data sheet of the
TEA1060 family.
The electronic hook switch can be replaced by a
mechanical system (hook switch) with a hold/release
function which is intended for on-hook dialling.
Product specification
TEA1083; TEA1083A
R2
130 kΩ
R1
620 Ω
15
R20
150 Ω
1
L1
150 µH
3 (4) 2 (2) 8 (16)
C5 11 VCC
LN
12
a/b
IR
PD
SREF SUP VBB
(15)
7
C21
C20
220
line
b/a
R3
3.9 kΩ
100 nF
7
MIC−
6
GAR
5
R4
50 kΩ
TEA1060 QR
8
MIC+
C2
10 µF
R21
QLS
µF
TEA1083
47 µF
(12)
(TEA1083A)
6
PD
(13)
LSE
R8
390 Ω
14
MUTE
VEE
10
REG
16
13
DTMF
SLPE
18
C14
150 nF
2.2 kΩ
C24
150 nF
LSI1 LSI2 VSS
4 (8) 5 (9) 1 (1)
C1
Zbal
100
µF
C3
4.7
µF
R9
20 Ω
R22
2.2
kΩ
C22 C23
220 220
nF
nF
line-interrupter
electronic
hook switch
cradle switch
MUTE
VDD
CRS
DP/FL
DTMF
MICROCONTROLLER AND
INTERFACE CIRCUITRY
VSS
XTAL
ENABLE
MGR055
Pin numbers in parenthesis refer to the TEA1083A/AT.
Fig.11 Application example when the TEA1083/83A is used in conjunction with the TEA1060.
March 1994
12