Philips Semiconductors
Call progress monitor for line powered
telephone sets
Product specification
TEA1083; TEA1083A
SYMBOL
PARAMETER
CONDITIONS
LSE input
VIL
VIH
II
∆G
LOW level input voltage
HIGH level input voltage
Input current
LSE = HIGH
Reduction of gain from LSI1/LSI2 LSE = LOW
to QLS
MIN.
TYP.
MAX. UNIT
0
−
1.5
−
−
5
60
80
0.3
V
VBB
V
10
µA
−
dB
handbook, full pagewidth
Iin
VSUP
ISUP
A
ICC
R1
620 Ω
ITR
R20
150 Ω
VSUP − VSREF
IBB
15
1
3 (4) 2 (2) 8 (16)
VCC
2
GAS1
LN
7
MIC−
VCC
SREF SUP
(13) 6
LSE
VBB
7 (15)
QLS
3
GAS2
8
MIC+
VCC
(12)
PD
TEA1083
C21
220
C20
Iline
5
TEA1060
QR+
(8) 4
(TEA1083A)
LSI1
µF VBB
470
µF
VLSI
VO
6
(9) 5
GAR
VEE STAB REG SLPE
LSI2
VSS
1 (1)
RLS
50 Ω
10 9
16 18
C1
100
µF
R5
3.6
kΩ
C3
4.7
µF
R9
20 Ω
MGR054
Fig.10 Test circuit.
Notes to figure 10
1. ISUP = IIN − ITR
2. Gv = 20 log V---V--L--o-S---I
3.
ITR
=
-V----S---U----P----–---S----R---E----F-
R 20
4. The pin numbers in parenthesis refer to the TEA1083A/AT
5. LSE has to be HIGH to measure the voltage gain
6. PD has to be HIGH to measure in PD conditions
7. The pins not shown in the TEA1060 are left open-circuit
8. An impedance in series with pin SUP (e.g. an ammeter) should
be avoided as it interferes with the values of ITR and ISUP.
March 1994
11