psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 128

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
Figure 65
Typical Control Generator Applications
4.3.4
A programmable tone filter can be switched in the tone signal path by setting the ETF
(Enable Tone Filter) bit. The tone filter contains a programmable equalizer and a
saturation amplifier (see figure 64).
A generated square-wave or trapezoid signal can be converted by the equalizer into a
sine-wave signal. The equalizer is realized as a band-pass filter.
Tone Filter
118
PSB 21391
PSB 21393
2001-03-07
Codec