peb20954 Infineon Technologies Corporation, peb20954 Datasheet - Page 11
peb20954
Manufacturer Part Number
peb20954
Description
Smart Integrated Digital Echo Canceller Sidec
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEB20954.pdf
(132 pages)
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Figure 4
SIDEC can be used in a PBX or Central Office (CO) to cancel the echo next to the
customer side (near end echo). The echo delay is kept short. The delay for this
application is usually less than 64ms and the SIDEC can cancel up to 32 channels.
Figure 4 shows a PBX with a T1/E1 interface FALC LH to the CO on the one side. On
the other side analog phones are connected.
A possible SIEMENS solution with the SICOFI (includes D/A and A/D conversion) and
the SLIC (hybrid) to connect the analog phone is shown above.
Preliminary Data Sheet
POTS
POTS
POTS
POTS
POTS
POTS
PBX:
SICOFI:
SLIC:
Echo
SIDEC in a Private Branch Exchange (PBX)
2 wires
Private Branch eXchange
Signal Processing Codec Filter
Subscriber Line Interface Circuit
SLIC
SLIC
SLIC
SLIC
SLIC
SLIC
4 wires
PEB 2466
PEB 2466
SICOFI
SICOFI
(CODEC)
(CODEC)
11
PCM30
PBX
POTS:
FALC:
Plain Old Telephone Service
Frame and Line Interface Component
SIDEC
FALC
PEB 2255
LH
PCM30
Introduction
PEB 20954
PEF 20954
E1/T1
04.99
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