Philips Semiconductors
Objective specification
DECT baseband controller
1
FEATURES
PCD5091
•
Easy interfacing with radio circuits, operating at other
supply voltage (RF supply pin with level shifter for RF
signals)
•
On-chip comparator for use as data-slicer
•
Low power oscillator with integrated frequency
adjustment
•
QFP100 and LQFP100 packages
•
Power-on-reset
•
Programmable power-down modes
•
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. Integrated 64 kbyte ROM, 3 kbytes of
data memory and 1 kbyte SDR-RAM. 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
3
ORDERING INFORMATION
TYPE
NUMBER
PCD5091H
PCD5091HZ
1997 Jul 21
•
ADPCM encoding and decoding complying with G.721
•
Volume control
•
Speech filters
•
Programmable gain in speech paths
•
Side tone and soft mute
•
Two tone (DTMF) generators
•
Automatic gain control
•
Hands-free operation
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 PCD5091 is designed for GAP-compliant handsets
with speaker-phone option. 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
LQFP100
DESCRIPTION
plastic quad flat package; 100 leads (lead length 1.95 mm);
body 14
×
20
×
2.8 mm
plastic low profile quad flat package; 100 leads; body 14
×
14
×
1.4 mm
3
VERSION
SOT317-2
SOT407-1
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