AS2504 datasheet(1/12 Pages) AMSCO

Teilenummer	AS2504

Bauteilbeschribung	Cordless telephone, answering machine line interface

PDF	12 Pages

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Hersteller	AMSCO [ams AG]

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Preliminary Data Sheet

AS2504

1/12

August 1998

®

Austria Mikro Systeme International AG

Cordless telephone, answering

machine line interface

Key Features

Analogue line interface and speech circuit

for a/b terminals on a 28-pin CMOS-IC

2 balanced transmit inputs

3 unbalanced transmit inputs

2 buffered single ended receive outputs

(RL>150

Ω)

1 auxiliary single ended receive output

(RL>10k

Ω)

Low noise (max. -72dBmp)

Soft clipping to avoid harsh distortion

Operating range from 15mA to 100mA

(down to 5mA with reduced performance)

Line loss compensation selectable by pin

option

Real and complex impedance selectable by

external components

Side tone adaptation selectable by external

components

Digital controls input for mode selection

Rx volume control

General Description

AS2504 is a CMOS integrated circuit that

incorporates DC and AC line adaptation (DC-

mask

and

synthesised

AC-impedance

of

1000

Ω) as well as a speech circuit with

softclipping, line loss compensation and Rx-

volume control. It shall act as an a/b-line

powered or auxiliarily powered device, which is

controlled by a CPU.

Application

Cordless base stations, answering machines,

a/b-line or auxiliary powered telephone sets.

Package

Available in 28 pin SOIC

Block Diagram

Ähnliche Beschreibung - AS2504

Hersteller	Teilenummer	Datenblatt	Bauteilbeschribung
NXP Semiconductors	PCD6001	385Kb / 96P	Digital telephone answering machine chip 2001 Apr 17
	UBA1706	197Kb / 28P	Cordless telephone line interface 1999 Jun 04
	UBA1707	245Kb / 36P	Cordless telephone, answering machine line interface 1999 Feb 17
Sanyo Semicon Device	LA2805	248Kb / 9P	Telephone Answering Machine Use
Siemens Semiconductor G...	PSB2168	897Kb / 185P	Digital Answering Machine SAM
List of Unclassifed Man...	D6571E	551Kb / 117P	Chip for an All-Digital Telephone Answering Machine with Flash Memory Interface
Sanyo Semicon Device	LA2800N	429Kb / 9P	Telephone Answering Machine
NXP Semiconductors	PCD6003	385Kb / 96P	Digital telephone answering machine chip 2001 Apr 17
Toshiba Semiconductor	TLP797GA	130Kb / 5P	Cordless Telephone
Motorola, Inc	MC34016	301Kb / 16P	Cordless Universal Telephone Interface

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