PEB2466HV2.2(2001) Ver la hoja de datos (PDF) - Infineon Technologies

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PEB2466HV2.2
(Rev.:2001)

Four Channel Codec Filter with PCM and Microcontroller Interface SICOFI®4-µC

Infineon Technologies 

PEB 2466

PEF 2466

Overview

1

Overview

The four-channel codec filter PEB 2466 SICOFI®4-µC is built around a central DSP-core

which provides independent filter structures for all channels. Its analog I/O pins are used

to connect to external subscriber line interface circuits (SLICs). Their signals are

internally routed to the analog-to-digital and digital-to-analog converters (ADC, DAC).

The signaling pins carry line status and control information to and from the SLICs. Two

programmable clock outputs are available. The SICOFI®4-µC connects to the digital

switching and transmission system through two PCM Highways. The digitized voice

band signals are available as A-Law or µ-Law codes within selectable 8-bit time slots.

The SICOFI®4-µC modes, features, and filter characteristics are programmed through a

serial interface to a microcontroller. The access mechanism is very simple, and can be

implemented with as few as three I/O ports. The PEB 2466 is available for standard

temperature range applications (0 °C to +70 °C); the PEF 2466 is available for extended

temperature range applications (-40 °C to +85 °C).

PEB 2466

SICOFI4-µC

ADC - DAC

t/r

SLIC 1

Signaling

ADC - DAC

t/r

SLIC 2

Signaling

ADC - DAC

t/r

SLIC 3

Signaling

ADC - DAC

t/r

SLIC 4

Signaling

DSP Core

Digital Filters

Channel 1

Digital Filters

Channel 2

Digital Filters

Channel 3

Digital Filters

Channel 4

Highway A

Highway B

PLL,

Clocking

Status and Control

Registers

CRAM

Serial Microcontroller Interface

Figure 1 SICOFI®4-µC Architecture

2466_201

Hardware Reference Manual

2

2001-02-20

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