PCD5094H datasheet(3/16 Pages) PHILIPS

3 / 16 page

1997 Jul 21

Philips Semiconductors

Objective speciﬁcation

DECT baseband controller

PCD5094

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

• +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

• 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

• 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.

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).

ORDERING INFORMATION

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

PCD5094H

QFP100

plastic quad ﬂat package; 100 leads (lead length 1.95 mm);

body 14

× 20 × 2.8 mm

SOT317-2

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