PXB4220E-V32 Infineon Technologies, PXB4220E-V32 Datasheet - Page 20
PXB4220E-V32
Manufacturer Part Number
PXB4220E-V32
Description
IC CHIPSET 8 E1/T1 LINE 256-BGA
Manufacturer
Infineon Technologies
Datasheet
1.PXB4220E-V33.pdf
(290 pages)
Specifications of PXB4220E-V32
Applications
*
Interface
*
Voltage - Supply
*
Package / Case
256-BGA
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
PXB4220E-V32
PXB4220E-V32IN
PXB4220E-V32IN
Available stocks
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IWE8, V3.4
PXB 4219E, PXB 4220E, PXB 4221E
Overview
IWU
PDH
ATM
FALC LH
SIDEC
IWE8
network
PEB2255
PEB20954
PXB4220
network
Near End
Far End
Figure 4
Echo Canceller Application
The echo cancelling function itself is performed in STM. In the application above the
IWE8 is used to translate voice ATM channels into STM channels and vice versa.
Infineon’s Smart Integrated Digital Echo Canceller (SIDEC, PEB 20954) is used for
cancellation of the echo that is generated by reflection on the near end side and heard
by the far end speaker. The SIDEC can cancel end echo paths (SDH or PDH network
on near end side) up to 128 ms. For details see [21]
Data Sheet
20
2003-01-20
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