Philips Semiconductors
Low voltage telephone transmission circuit with
dialler interface and regulated strong supply
Product specification
TEA1114A
QUICK REFERENCE DATA
Iline = 15 mA; VEE = 0 V; RSLPE = 20 Ω; AGC pin 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 TEA1114AUH; unless otherwise
specified.
SYMBOL
Iline
VLN
ICC
VCC
VDD
IDD
Gv(TX)
Gv(RX)
∆Gv(QR)
∆Gv(trx)
∆Gv(trx)(m)
PARAMETER
CONDITIONS
line current operating range
normal operation
with reduced performance
DC line voltage
internal current consumption
supply voltage for internal circuitry
(unregulated)
VCC = 3.6 V
IP = 0 mA
regulated supply voltage for peripherals
speech mode
ringer mode
available supply current for peripherals
IDD = −3 mA
IDD = 75 mA
typical voltage gain for microphone
amplifier
VMIC = 4 mV (RMS)
typical voltage gain for receiving amplifier
gain setting range for earpiece amplifier
gain control range for microphone and
receive amplifiers with respect to
Iline = 15 mA
gain reduction for microphone and receive
amplifiers
VIR = 4 mV (RMS)
RE1 = 100 kΩ
Iline = 85 mA
MUTE = LOW
MIN.
11
1
4.05
−
−
3.0
3.0
−
43.2
32.4
−14
−
−
TYP.
−
−
4.35
1.25
3.6
3.3
3.3
−
44.2
33.4
−
6.0
80
MAX. UNIT
140 mA
11 mA
4.65 V
1.5 mA
−
V
3.6 V
3.6 V
−3 mA
45.2 dB
34.4 dB
+12 dB
−
dB
−
dB
2000 Mar 21
3