pmb2728 Infineon Technologies Corporation, pmb2728 Datasheet

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pmb2728

Manufacturer Part Number
pmb2728
Description
Dect Pbx
Manufacturer
Infineon Technologies Corporation
Datasheet

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Part Number:
PMB2728
Manufacturer:
INFINEON
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Part Number:
PMB2728
Manufacturer:
SIEMENS
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5 510
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PMB2728
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AD
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pmb2728HV2.2/HV2.3
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SIEMENS
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pmb2728HV2.2/HV2.3
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AMD
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DECT PBX
General Description
The DECT PBX circuit is one of the devices of the Siemens
chip set designed for cordless basestations specified by the
DECT standard.
The circuit consists of two main functional blocks, these are
the Burst Mode Controller (BMC) and the Digital Signal
Processor (DSP).
The BMC can handle up to six DECT channels. It supports
the timecritical functions specified in the DECT standard.
Either 6 internal connections between handheld or 2 internal
and 2 external connections can be handled. An interface to a
standard 8-bit microcontroller (Motorola/Mitsubishi and Intel
compatible) is implemented. The on-chip RF interface allows
the control of the DECT-RF circuitry with a minimum of
discrete components.
The one-chip DSP can handle PCM/ADPCM
– transcording and echosupression due to the DECT
– standard for two channels.
Siemens Aktiengesellschaft
2 x PMB 2920
or ISDN-Interface
PCM-Interface
Block Diagram
PMB 2728
DSP
Decim.
Decim.
Interp.
Interp.
IOM
Interface
® -2
Echocontrol
Echocontrol
PCM-Intf.
Addition
Codec-
Codec-
Filter
Filter
Trancoder
Trancoder
ADPCM-
ADPCM-
2 x ADPCM-Codec
Microcontroller Interface
BMC
Interface
Microcontroller
ADPCM
Registers
Channel
Control
4x
Timer
1
Burst Coding and
Decoding (6 ch.)
Type
PMB 2728-H
Features
• Power supply voltage: 5 V 5 %
• Low power consumption
• 100 pin P-MQFP packaging
• Advanced low power CMOS technology
Furthermore 1 IOM-2 interface is integrated e.r. for
connection of an ISDN interface device (lSAC-S) or of a
high feature codec device (ARCOFI, PSB 2163). For
analog line interfaces two circuits PMB 2920 can be
directly connected to the PMB 2728. Furthermore an
additional PCM interface is implemented for connection
of an answering machine.
The device is fabricated using Siemens advanced
CMOS technology and will be available in a
100 pin package.
Data Memory
Control RAM
Control RAM
Encryption
Decryption
Clocks
Serial OUT
Synchro-
Serial IN
nization
Control
Switch
Burst
CRC
CRC
Package
P-MQFP-100-2 (SMD)
Descramble
Descramble
Scramble
Interface
Control
PLL
RF-
PMB 2728
ITB05955

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