PSB21382 INFINEON [Infineon Technologies AG], PSB21382 Datasheet - Page 133

• Manufacturer Part Number: PSB21382
• Description: Siemens Codec with S/T Transceiver
• Manufacturer: INFINEON [Infineon Technologies AG]

The GR-gain adjustment stage is digitally programmable from – 6 to 0 dB in steps
CRAM to set GR to the desired value. After reset, the GR-gain stage is bypassed.
A low-pass filter limits the signal bandwidth in the receive direction according to ITU-T
and ETSI (NET33) recommendations.
A series of low-pass interpolation filters increases the sampling frequency up to the
desired value. The last interpolator feeds the D/A-converter.
Figure 74
Architecture of the FX- and FR-Correction Filter
Data Sheet
0.25 dB (–
dB and others are also possible). Respectively two bytes are coded in the
Equalizer 1
Equalizer 2
123
High- / Low- Pass
PSB 21381/2
PSB 21383/4
ITD02288
2001-03-12
Codec