psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 141

• Manufacturer Part Number: psb21381
• Description: Siemens Codec With S/t Transceiver
• Manufacturer: Infineon Technologies Corporation

Figure 77
Filter Parameters of the Equalizer
The two main purposes of the programmable saturation amplification are:
• Level balancing of the filtered signal (avoidance of overload effects).
• Amplification up to + 12 dB followed by a saturation (3.14 dBm0) of the incoming
Data Sheet
signal. This saturation amplification converts a sine-wave signal into a square-wave
or a trapezoid signal where their edges are eliminated. This method produces
pleasant ringing tones.
131
PSB 21381/2
PSB 21383/4
2001-03-12
Codec