PCD5094 Ver la hoja de datos (PDF) - Philips Electronics
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PCD5094 Datasheet PDF : 16 Pages
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Philips Semiconductors
DECT baseband controller
Objective specification
PCD5094
6 FUNCTIONAL DESCRIPTION
The PCD509x is a family of single-chip controllers, designed for use in Digital Enhanced Cordless Telecommunications
systems (DECT). The family is designed for minimum component-count and minimum power consumption. All controllers
include an embedded 80C51 microcontroller with on-chip memory and I2C-bus. The Philips DECT RF interface is
implemented. The Burst Mode Logic (BML) performs the time-critical MAC layer functions for applications in DECT
handsets and base stations. The ADPCM transcoding is in compliance with the CCITT recommendation G.721 and
includes receive and transmit filters.
handbook, full pagewidth
RADIO
CIRCUITS
PCD5091
a. Handset.
EARPIECE
MICROPHONE
MGD797
handbook, full pagewidth
RADIO
CIRCUITS
PCD5092/
PCD5094
LINE
INTERFACE
(e.g. TEA1118)
a/b line
u-law TAM switch
MBH945
b. Basestation (PCD5094) with analog interface and echo cancellation; up to 6 portables can be handled.
handbook, full pagewidth
MBH939
RADIO
CIRCUITS
PCD5093
2
EARPIECE
MICROPHONE
2 x IOM or
2 x ADPCM-CODEC
or a combination
Handsfree
Interface to ISDN or
n-line analog line
interface (PCD5096)
c. Base with digital interface and analog corded handset connected; up to 6 portables can be handled.
1997 Jul 21
Fig.3 Block diagrams of DECT systems with PCX509x.
9
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