Philips Semiconductors
Objective specification
DECT baseband controller
PCD5094
• Easy interfacing with radio circuits, operating at other
supply voltage (RF supply pin with level shifter for RF
signals)
1
FEATURES
• 80C51 ports P0, P1, P2 and P3 available for interfacing
to display, keyboard, I2C-bus, interrupt sources and/or
external memory. External program memory is
addressable up to 128 kbytes
• QFP100 package
• Power-on-reset
• +2.7 to 5 V port (P0 to P3) interface
• Low power oscillator with integrated frequency
adjustment
• TDMA frame (de)multiplexing. Transmission or
reception can be programmed for any slot
• Low supply voltage (2.7 to 3.6 V)
• CMOS technology.
• Ciphering, scrambling, CRC checking/generation and
protected B-fields
1.1
DSP software features
• Speech and data buffering space for six handsets
• Local call and B-field loop-back
• ADPCM encoding and decoding complying with G.721
• Two interrupt lines for BML and DSP to interrupt 80C51 • u-law encoding and decoding complying with G.711
• 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
• Echo cancellation and network echo suppressor
• Speech filters
• Programmable gain in speech paths
• Side tone and soft mute
• On-chip 8-bit Digital-to-Analog Converter (DAC) for
• Ringer and tone (DTMF) generator
• Automatic gain control
electronic potentiometer function
• Phase error measurement and phase error correction by
hardware
• Telephone Answering Machine (TAM) switch
• TAM switch volume control
• DACs and ADCs for dynamic earpiece and dynamic or
electret microphone
• Conference between a/b line and two handsets.
• On-chip reference voltage
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.
• 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
2
GENERAL DESCRIPTION
Machine (DTAM) connected to SPI interface
The PCD5094 is designed for GAP-compliant
• IOM-2 interface (Siemens registered trademark)
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).
• 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
PACKAGE
NUMBER
NAME
DESCRIPTION
VERSION
PCD5094H
QFP100
plastic quad flat package; 100 leads (lead length 1.95 mm);
SOT317-2
body 14 × 20 × 2.8 mm
1997 Jul 21
3
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