PSB21493FV1.7 데이터 시트보기 (PDF) - Infineon Technologies

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PSB21493FV1.7

Infineon Codec with U PNTransceiver and Embedded Microcontroller featuring Acoustic Echo Cancellation

Infineon Technologies 

PRODUCT BRIEF

The INCA-P, PSB 21493, integrates in a single clip,

all the functions required for a high feature PBX

phone.

The line transceiver of the INCA-P implements the

subscriber access functions for a digital PBX ter-

minal to be connected to a two-wire UPN Interface.

The chip provides complete Layer-1 and basic

Layer-2 functions for digital terminals.

Different interfaces allow connection to a variety

of devices including a full-speed USB interface for

PC host communications.

The INCA-P is typically used in applications for

terminal equipment in which the microphone,

loudspeaker, headset, and handset can be directly

connected to the Analog Front End (AFE).

The AFE and the integrated fixpoint DSP perform

signal processing tasks such as encoding,

decoding, filtering functions, and tone generation

(ringing, audible feedback tones, and DTMF sig-

nal). A full-duplex echo cancellation mechanism

provides high quality speakerphone functionality.

Applications

PBX Feature Phone with

full-duplex, hands-free operation,

including USB interface

Features

Two-wire transceiver with AMI

coded 2B+D channels

C166 based 16-bit CPU

Bootstrap Loader Function

On-Chip General Purpose

SRAM (4 KBytes)

On-Chip Debug System

OCDS (Level 1)

Both Power-on-Reset and Under

Voltage Detection provided

Terminal-specific Functions,

including Keypad Scanner, LED

Matrix Control, and two Pulse

Width Modulation units

12 Mbit/s Full-Speed Mode com-

plies with USB Specification V1.1

15 SW-configurable Endpoints,

as well as the bi-directional

Control Endpoint 0

Full-duplex echo cancellation

with noise reduction

Two transducer correction filters

I N C A - P
ToneGenerator

DTMF Receiver

Three differential inputs for the

handset microphone, speaker-

phone, and the headset

Three differential outputs for

a handset ear piece (200 Ω),

a headset (200 Ω),=and a loud-

speaker (100 mW @ 20 Ω)

PCM A-Law/µ-Law

(ITU-T G.711) and 8/16-bit

linear data

PCM Codec is fully compatible

with the ITU-T G.712 and ETSI

(NET33) specification

Type

INCA-P

Sales Code

PSB 21493

Package

P-TQFP-144

INCA-P

Infineon Codec with UPNTransceiver and

Embedded Microcontroller featuring

Acoustic Echo Cancellation

PSB 21493

Never stop

thinking.

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