pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 339
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pef20550
Manufacturer Part Number
pef20550
Description
Extended Line Card Interface Controller Elic
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF20550.pdf
(407 pages)
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5.9
5.9.1
The line card consists of an ELIC (PEB 20550) device which handles the monitor and
the signaling channels of up to 16 SICOFI-4 (PEB 2465) devices. Since each SICOFI-4
supports four analog lines, up to 64 analog subscriber lines (t/r lines) can be
accommodated.
Figure 115 shows the interconnection of the ELIC, and the SICOFI-4 devices via the
IOM-2 interface:
Figure 115
Analog Line Card with SICOFI
A typical timing example for the connection of the line card to a 2048 kBit/s PCM
backplane is shown in figure 116. It should be noted that the PCM interface must be
clocked with a 4096 kHz clock even if the PCM interface operates at only 2048 kBit/s.
This is to obtain a DCL output frequency of 4096 kHz, which is required for the IOM-2
timing.
Semiconductor Group
Analog
Lines
Analog
Lines
Applications
Analog IOM
Quadruple Codec Filter
Quadruple Codec Filter
Up to 4 Devices per
IOM -2 Port
SICOFI -4
SICOFI -4
R
R
R
®
D
D
OUT
OUT
-2 Line Card with SICOFI
DCL
FSC
DCL
FSC
D
D
IN
IN
®
-4 Devices Using the IOM
2048 kbit/s
2048 kbit/s
4096 kHz
8 kHz
4 x IOM -2 Ports
+5 V
k 1
339
R
®
+5 V
1 k
-4 as Codec/Filter Device
DCL
FSC
DD0
DU0
DD1
DU1
DD
DU
DD3
DU3
SACCO A SACCO B
2
2
ELIC
®
-2 Interface
µP
R
RXD1
RXD0
RXD2
RXD3
TXD0
TXD1
TXD2
TXD3
PDC
PFS
Application Hints
PEB 20550
PEF 20550
PCM
Backplane
Signaling
Highway
Backplane
8 kHz
4096 kHz
2048 kbit/s or
4096 kbit/s
ITS08095
01.96
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