tea1083at NXP Semiconductors, tea1083at Datasheet - Page 12

• Manufacturer Part Number: tea1083at
• Description: Call Progress Monitor For Line Powered Telephone Sets
• Manufacturer: NXP Semiconductors

Philips Semiconductors
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.
March 1994
line
Call progress monitor for line powered
telephone sets
a/b
b/a
Pin numbers in parenthesis refer to the TEA1083A/AT.
Fig.11 Application example when the TEA1083/83A is used in conjunction with the TEA1060.
390
line-interrupter
electronic
hook switch
R8
Z bal
cradle switch
R2
130 k
R3
3.9 k
100 nF
100
C5
C1
F
14
11
8
7
CRS
V DD
IR
MIC
MIC
MUTE
V EE
V CC
10
MUTE
15
TEA1060
R1
620
REG
16
4.7
C3
F
SLPE
LN
DTMF
GAR
1
MICROCONTROLLER AND
R20
150
18
PD
QR
R9
20
INTERFACE CIRCUITRY
DP/FL
V SS
12
6
5
13
150 nF
10 F
C14
C2
12
50 k
R4
2.2 k
DTMF
XTAL
R21
150 nF
C24
R22
2.2
k
150 H
L1
ENABLE
(12)
6
PD
SREF
LSI1
TEA1083; TEA1083A
4 (8)
3 (4)
(TEA1083A)
C22
220
nF
TEA1083
SUP
LSI2
2 (2)
5 (9)
C23
220
nF
V BB
V SS
QLS
LSE
1 (1)
8 (16)
Product specification
(15)
7
(13)
MGR055
47 F
C21
C20
220
F