psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 129

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

The filter parameters (center frequency, bandwidth and attenuation of the stop-band) are
programmable by the CRAM parameters listed in Table 16
Table 16 CRAM Parameters of the Tone Filter
Parameter
A1
A2
K
GE
A maximum attenuation of the first harmonic frequency of 50 dB is possible. Figure 66
shall illustrate the equalizer parameters.
Figure 66
Filter Parameters of the Equalizer
Data Sheet
# of CRAM
Bytes
1
1
1
1
Range
200 Hz to 4 kHz
0 to – 1
0 to 54 dB
+ 12 to – 12 dB
119
Comment
Center frequency
Determines with A1 and K the
bandwidth. The closer A2 comes
to -1, the smaller the bandwidth.
Attenuation of the stop-band
Saturation amplification
PSB 21391
PSB 21393
2001-03-07
Codec