PCD5096 datasheet(34/52 Pages) PHILIPS

34 / 52 page

1997 Jan 22

Philips Semiconductors

Preliminary speciﬁcation

Universal codec

PCD5096

12.2

Large business systems

For large business systems, local loop and public access systems, several PCD5096 codecs can be connected together

utilizing the serial bus system. A digital cordless base station for large business systems typically consists of a baseband

processor, radio interface and a number of universal codecs interfacing to local lines, PSTN lines and to the local corded

handset/hands-free interface. A diagram of this configuration is shown in Fig.20.

The universal codec can connect to different applications in a typical large business system. They are as follows:

1. PSTN Line Interface

2. Speaker phone with hands-free feature

3. Local Line Interface.

In these applications the additional processing required for conference calling is performed either in the host baseband

processor, or in the universal codecs.

For further details about these three applications consult the

“PCD5096 DSP user manual”.

Fig.20 Large business system.

handbook, full pagewidth

MBH858

DSP

PCD5096

IOM

I2C

2 x

PSTN

Fax

RADIO

CIRCUIT

DTAM

HIGH-END

SYSTEM

PROCESSOR

PPa, PPb

IOM

I2C

DSP

PCD5096

IOM

I2C

DSP

PCD5096

IOM

I2C

DSP

PCD5096

IOM

I2C

local

lines

local

lines

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