AS2533 datasheet(1/25 Pages) AMSCO

Numer części	AS2533

Szczegółowy opis	Multi-Standard CMOS Single Chip Telephone IC with Dual Soft Clipping

PDF	25 Pages

Scroll/Zoom	100%

Producent	AMSCO [ams AG]

Strona internetowa	http://www.ams.com

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1

Rev. 7

July 1998

Data Sheet

AS2533...6

Multi-Standard CMOS Single Chip

Telephone IC with Dual Soft Clipping

®

Austria Mikro Systeme International AG

Package

Available in 28 pin SOIC or DIP.

LINE ADAPTATION

POWER EXTRACTION

DC MASK

DIALLER

SOFT CLIP

AGC

LI

STB

RI

LINE

CURRENT

SENSE

VDD

CS

LS

MUTE

RO

M1

M2

ZBAL

VDD

MO

FCI

MELODY

SEQUENCER

RING

FREQUENCY

DISCRIMINATION

CONTROL

LOGIC

HS/DP

C4

C3

C2

C1

R4

R3

R2

R1

3.58

MHz

OSC

Vss

AGND

La

Lb

LLC

RAM

OSC

LLC Hi

LLC Lo

LLC Off

AS253x

MODE

MFL

TONE

GENERATOR

AGND

LED

Z2

Z1

CI

KEY

PAD

Key Features

u Line/speech circuit, LD/MF repertory dialler and

tone ringer on one 28 pin CMOS chip

u Operating range from 13 to 100 mA (down to 5 mA

with reduced performance)

u Soft clipping to avoid harsh distortion

u Volume control of receive signal

u Line loss compensation selectable by pin option

u Low noise (max. - 72 dBmp)

u Real or complex impedance

u NET 4 compatible

u LD/MF switchable dialling

u Pacifier tone during programming

u 31 digit last number redial

u Repertory memories (not AS2534), 4 direct/10

indirect (AS2533/6), 12 direct (AS2535)

u Repeat dialling by busy or engaged (not AS2535)

u Sliding cursor protocol with comparison

u Pause key for access pause or wait function

u 3 flash keys, 100 ms, 280 ms and 375/600 ms

u On chip MF filter (CEPT CS 203 compatible)

u Ring frequency discrimination

u 3-tone melody generator

Block Diagramme

General Description

The AS253x is a CMOS integrated circuit that contains

all the functions needed to form a high performance

electronic telephone.

The device incorporates LD/MF repertory dialling, melody

generation, ring frequency discrimination and a high

quality line/speech circuit.

A RAM is on chip for a 31 digit last number redial and

memories (not AS2534) each containing up to 21 digits/

data. The sliding cursor procedure makes the LNR

function easy to use under various PABX systems. Also

centrex keys (not AS2535) are provided.

The device incorporate a volume control for the earpiece.

The volume can be controlled by the VOL key (+ 5.4 dB)

or by the –/+ keys (+8.1 dB/-5.4 dB in 5 steps).

The versatility of the circuit is provided by pin options

and a few external components. This allows easy

adaptation to different PTT requirements.

Podobny numer części - AS2533

Producent	Numer części	Arkusz danych	Szczegółowy opis
ams AG	AS2533	1Mb / 26P	Multi-Standard CMOS Telephone IC for Basic Telephones
ARTSCHIP ELECTRONICS CO...	AS2533	861Kb / 25P	Multi-Standard CMOS Single Chip Telephone IC
ams AG	AS2533-36	1Mb / 26P	Rx and Tx soft clipping to avoid harsh distortion
	AS2533F	508Kb / 25P	Multi-Standard CMOS Telephone IC for Basic Telephones
	AS2533F	1Mb / 26P	Multi-Standard CMOS Telephone IC for Basic Telephones

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Podobny opis - AS2533

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ATMEL Corporation	U3600BM	738Kb / 44P	Single-chip Cordless Telephone IC
ams AG	AS2533	508Kb / 25P	Multi-Standard CMOS Telephone IC for Basic Telephones
IC MICROSYSTEMS	ICM7102B	364Kb / 12P	LOW COST SINGLE CHIP TELEPHONE IC
IC MICROSYSTEMS	ICM7115	344Kb / 12P	LOW COST SINGLE CHIP TELEPHONE IC WITH VOLUME CONTROL
ams AG	AS2533	1Mb / 26P	Multi-Standard CMOS Telephone IC for Basic Telephones
ARTSCHIP ELECTRONICS CO...	AS2533	861Kb / 25P	Multi-Standard CMOS Single Chip Telephone IC

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