2.5 Soft Clipping
To avoid distortion on line, the TEA7063 has a
”soft clipping” on transmit channel.
The resistor (Rsoft) on pin 10 fixes the maximum
AC peak dynamic on the line: VSTL
VSTL(Vp)
=
Vpin16(DC)
-1.44
•
Rsoft
R9
(
(
pin
pin
10
8)
)
Figure 4
TEA7063
where Rsoft ≤
1V
IST
IST
=
2
470mV
⋅ R9 (pin8)
The capacitor (C10) and the resistor (R10) con-
nected on pin 11 fixe the constant time of the soft
clipping.
Recommended values: C10 = 150nF;
R10 = 560KΩ
Figure 5: Transmit Curves
7/15