PXB 4219 E V3.4 Infineon Technologies, PXB 4219 E V3.4 Datasheet - Page 20
PXB 4219 E V3.4
Manufacturer Part Number
PXB 4219 E V3.4
Description
IC ATM/IP INTERWORKING BGA-256
Manufacturer
Infineon Technologies
Datasheet
1.PXB4220E-V33.pdf
(290 pages)
Specifications of PXB 4219 E V3.4
Applications
*
Mounting Type
Surface Mount
Package / Case
256-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
PXB4219EV3.4
SP000007681
SP000007681
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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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