Philips Semiconductors
Low voltage telephone transmission circuit with
dialler interface and regulated strong supply
Product specification
TEA1114A
CHARACTERISTICS
Iline = 15 mA; VEE = 0 V; RSLPE = 20 Ω; pin AGC connected to VEE; Zline = 600 Ω; f = 1 kHz; measured according to test
circuits given in Figs 15, 16 and 17; Tamb = 25 °C for TEA1114A(T); Tj = 25 °C for TEA1114AUHT; unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Supply (pins LN, VCC, SLPE, REG and VDD)
THE LINE INTERFACE (PINS LN, SLPE AND REG)
Vref
VLN
VLN(Rext)
∆VLN(T)
stabilized reference voltage
between pins LN and SLPE
DC line voltage
DC line voltage with an
external resistor RVA
DC line voltage variation with
temperature referred to 25 °C
Iline = 1 mA
Iline = 4 mA
Iline = 15 mA
Iline = 140 mA
RVA = 44.2 kΩ (between
pins LN and REG)
Tamb = −25 to +75 °C
3.9
−
−
4.05
−
−
−
4.15
1.45
2
4.35
7.1
3.6
±40
4.4
V
−
V
−
V
4.65
V
7.55
V
−
V
−
mV
THE INTERNAL SUPPLY POINT (PIN VCC)
ICC
internal current consumption
VCC
supply voltage for internal
circuitry
VCC = 3.6 V
IP = 0 mA
−
1.25
1.5
mA
−
3.6
−
V
THE REGULATED SUPPLY POINT (PIN VDD)
ISUP
input current of the VDD
Iline = 1 mA
regulator (current from pin LN Iline = 4 mA
not flowing through pin SLPE) Iline ≥ 11 mA
−
0
−
mA
−
2.15
−
mA
−
4.3
−
mA
VDD
regulated supply voltage in:
speech mode
IDD = −3 mA;
3.0
3.3
VLN > 3.6 + 0.25 V (typ.);
Iline ≥ 11 mA
3.6
V
speech mode at reduced
performance
Iline = 4 mA
−
VLN − 0.35 −
V
ringer mode
Iline = 0 mA; IDD = 75 mA 3.0
3.3
3.6
V
IDD
regulated supply current
available in:
speech mode
speech mode at reduced
performance
trickle mode
Iline ≥ 11 mA
−
Iline = 4 mA
−
Iline = 0 mA; VCC
−
discharging; VDD = 1.2 V
−
−3
mA
−0.5
−
mA
−
100
nA
2000 Mar 21
15