peb20954 Infineon Technologies Corporation, peb20954 Datasheet - Page 121

• Manufacturer Part Number: peb20954
• Description: Smart Integrated Digital Echo Canceller Sidec
• Manufacturer: Infineon Technologies Corporation

6.9
The SIDEC is fitted with a circuit which is in compliance with this requirement, but most
subscribers prefer the solution which limit the send in signal (noise from the near end +
echo) to the noise level which was measured before (Reset value).
6.10
These tests are checked and are "OK"
Features of the 2100Hz tone disabler:
Operating frequency
Not operating frequency
Holding Band
Operating level / Not operating level
Operate time / Not operating time
Hold time / Release time
Guard band noise level to inhibit the operating > signal level
Maximum noise level for operation
False operation due to speech/data signals
Features of the phase reversal enhancement:
Operating frequency
Operating phase / Not operating phase
Preliminary Data Sheet
Test No. 9 - Comfort noise test
Test No. 10 - Canceller operation on the calling/caller station
side
121
2065 Hz - 2140 Hz
< 2000 Hz, > 2180 Hz
390 Hz - 3000 Hz
> -31 dBm0 / < -34 dBm0
> 260 ms / < 200 ms
> 210 ms / < 270 ms
< signal level - 5 dB
< 10/100h
2010Hz +/- 21Hz
> +/-155° / < +/- 110°
SIDEC Performance
PEB 20954
PEF 20954
04.99