SA2532KB datasheet(1/21 Pages) SAMES

部件名	SA2532KB

功能描述	SINGLE CHIP TELEPHONE FOR INDIA

PDF	21 Pages

Scroll/Zoom	100%

制造商	SAMES [Sames]

网页	http://www.sames.co.za

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1 / 21 page

DAT_SH02

PDS039-SA2532K-001

Rev. C

20-03-00

sames

Key Features

•

Speech Circuit, LD/MF Dialler and Tone Ringer

on one 28 pin CMOS chip

•

Low Noise

•

31 digit Last Number Redial

•

Line Loss Compensation selectable by pin

option

•

2 Timed Break Recall keys

•

Moving Cursor protocol with comparison

•

On chip MF filter (CEPT CS 203 compatible)

•

Pause key for auto pause or wait function

•

Power down mode

•

Ring frequency discrimination

•

Selectable Loop-Disconnect or DTMF dialling

modes

•

Real or complex impedance programmable

•

Soft Clipping to avoid harsh distortion

•

Uses inexpensive 3.58MHz ceramic resonator

•

Operating range from 13 to 100 mA

•

3 Tone melody generator

Block Diagram

General Description

The SA2532K 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 speech circuit.

Soft switch into temporary MF mode using * when

LD mode is selected .Timed Break Recall will be

available in both LD and MF dialling modes.

A 31 digit Last Number Redial (LNR) memory, with

moving cursor protocol,

activated by single key

depression.

Line Loss Compensation whereby send and receive

gains are adjusted (by 6dB) over the ranges

selected by the LLC pin.

KEYPAD

MODE_OUT

AGND

RI

STB

LS

LI

CS

DD

V

MO

SS

V

FC1

HS/DP

LLC

OSC

C1 C2

C3

C4

R1

R2

R3

R4

M2

M1

RO2

RO1

MUTE

SA2532K

DIALER

CLIP

SOFT

SENSE

CURRENT

LINE

BJT

GENERATOR

TONE

SEQUENCER

MELODY

RAM

OSC

LOGIC

CONTROL

DISCRIMINATION

FREQUENCY

RING

DD

V

+

MODE

SA2532KA/B

SINGLE CHIP

TELEPHONE FOR INDIA

类似零件编号 - SA2532KB

制造商	部件名	数据表	功能描述
Sames	SA2532K	623Kb / 27P	SINGLE CHIP TELEPHONE DEMO BOARD

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