PEB2245N-V12 Infineon Technologies, PEB2245N-V12 Datasheet - Page 16

• Manufacturer Part Number: PEB2245N-V12
• Description: IC SWITCHING/CONFER MULTI 44PLCC
• Manufacturer: Infineon Technologies
• Series: MUSAC™r

Specifications of PEB2245N-V12

• Function: Multipoint Switching and Conferencing
• Interface: PCM
• Voltage - Supply: 5V
• Current - Supply: 12mA
• Power (watts): 100mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-PLCC
• Includes: Clock Shift, Space Switch Mode, Time and Space Switch, Tristate Function
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Number Of Circuits: -
• Other names: PEB2245N-V12; PEB2245N-V12IN

PEB 2245
Figure 7 shows the architecture of a primary access board with common channel signaling using
four CMOS devices.
Figure 7
Architecture of a Primary Access Board
Multipoint Switching
In a multipoint configuration the communication between different stations is done by using a
common media. In a PBX system this can be achieved by connecting all stations to one (or more)
time-slots and transmitting the information back. Multipoint switching is a special form of
conferencing for data communication. In contrast to audio conferences terminals broadcast data to
the MUSAC which are only “or-connected”. That is, at each bit time, the “conference sum” is “1” if
the input of one or more terminals is “1”; otherwise, the result is “0”. A simple example of such a
system using Siemens VLSI switching devices is shown in figure 8.
ISDN subscribers are connected via line cards and PCM highways to a multipoint switching matrix.
The data from different terminals are summed up in the multipoint switching matrix and transmitted
back to all stations. The switching matrix is build by using just one MUSAC. Every combination of
subscribers may be switched to the same transport media (time-slot), in this way enabling a number
of powerful multipoint communication systems.
Semiconductor Group
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