Philips Semiconductors
Objective specification
DECT baseband controller
1
FEATURES
PCD5094
•
Easy interfacing with radio circuits, operating at other
supply voltage (RF supply pin with level shifter for RF
signals)
•
QFP100 package
•
Power-on-reset
•
Low power oscillator with integrated frequency
adjustment
•
Low supply voltage (2.7 to 3.6 V)
•
CMOS technology.
1.1
DSP software features
•
80C51 ports P0, P1, P2 and P3 available for interfacing
to display, keyboard, I
2
C-bus, interrupt sources and/or
external memory. External program memory is
addressable up to 128 kbytes
•
+2.7 to 5 V port (P0 to P3) interface
•
TDMA frame (de)multiplexing. Transmission or
reception can be programmed for any slot
•
Ciphering, scrambling, CRC checking/generation and
protected B-fields
•
Speech and data buffering space for six handsets
•
Local call and B-field loop-back
•
Two interrupt lines for BML and DSP to interrupt 80C51
•
On-chip, three-channel time-multiplexed 8-bit
Analog-to-Digital Converter (ADC) for RSSI
measurement, one for battery voltage measurement
and one channel available for other purposes
•
On-chip 8-bit Digital-to-Analog Converter (DAC) for
electronic potentiometer function
•
Phase error measurement and phase error correction by
hardware
•
DACs and ADCs for dynamic earpiece and dynamic or
electret microphone
•
On-chip reference voltage
•
On-chip supply for electret microphone
•
Very low ohmic buzzer output
•
Serial interface to external ADPCM CODEC (PCD5032)
or 8 kHz u-law samples
•
Speech switch for Digital Telephone Answering
Machine (DTAM) connected to SPI interface
•
IOM-2 interface (Siemens registered trademark)
•
Serial interface to synthesizer for frequency
programming
•
Programmable polarity and timing of radio-control
signals
•
GMSK pulse shaper
•
On-chip comparator for use as data-slicer
3
ORDERING INFORMATION
TYPE
NUMBER
PCD5094H
•
ADPCM encoding and decoding complying with G.721
•
u-law encoding and decoding complying with G.711
•
Echo cancellation and network echo suppressor
•
Speech filters
•
Programmable gain in speech paths
•
Side tone and soft mute
•
Ringer and tone (DTMF) generator
•
Automatic gain control
•
Telephone Answering Machine (TAM) switch
•
TAM switch volume control
•
Conference between a/b line and two handsets.
For each DSP software version a separate manual is
available in which detailed information is provided on how
parameters must be set. For further information please
contact Philips Semiconductors.
2
GENERAL DESCRIPTION
The PCD5094 is designed for GAP-compliant
basestations offering conference call between the a/b line
and two handsets and answering machine switch. It has an
embedded 80C51 microcontroller with twice the
performance of the classic architecture, 64 kbytes of
PROM program memory and 3 kbytes of data memory on
chip. In addition there is 1 kbyte of on-chip data memory
that is shared with on-chip Burst Mode Logic (BML) and
DSP, the System Data RAM (SDR).
PACKAGE
NAME
QFP100
DESCRIPTION
plastic quad flat package; 100 leads (lead length 1.95 mm);
body 14
×
20
×
2.8 mm
VERSION
SOT317-2
1997 Jul 21
3
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