Philips Semiconductors
Low voltage versatile telephone
transmission circuit with dialler interface
Product specification
TEA1067
PARAMETER
Receiving amplifier outputs
QR+ and QR−
Output impedance
(single-ended)
Voltage gain from IR to
QR+ or QR−
single-ended
differential
Gain variation with frequency
at f = 300 Hz
and f = 3400 Hz
Gain variation with temperature
at −25 °C and +75 °C
Output voltage
single-ended
differential
Output voltage
Noise output voltage
single-ended
differential
CONDITION
SYMBOL
Iline = 15 mA
R4 = 100 kΩ
RL (from QR+ or
QR−) = 300 Ω
RL (from QR+ or
QR−) = 600 Ω
Zo
Gv
Gv
w.r.t. 800 Hz
∆Gvf
w.r.t. 25 °C
without R6;
Iline = 50 mA
sinewave drive
Iline = 15 mA;
Ip = 0 mA; THD = 2%
R4 = 100 kΩ
RL = 150 Ω
RL = 450 Ω
f = 3400 Hz;
series R = 100 Ω;
CL = 47 nF
THD = 10%;
RL = 150 Ω
R4 = 100 kΩ
Iline = 4 mA
Iline = 7 mA
Iline = 15 mA;
R4 = 100 kΩ;
IR open-circuit
psophometrically
weighted; (P53 curve)
RL = 300 Ω
RL = 600 Ω
∆GvT
Vo(rms)
Vo(rms)
Vo(rms)
Vo(rms)
Vo(rms)
Vno(rms)
Vno(rms)
MIN.
−
30
36
−0.5
−
0.25
0.45
0.65
−
−
−
−
TYP.
4
31
37
−0.2
±0.2
0.29
0.55
0.80
15
130
50
100
MAX. UNIT
−
Ω
32
dB
38
dB
0
dB
−
dB
−
V
−
V
−
V
−
mV
−
mV
−
µV
−
µV
June 1990
13