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TCA3388

TELEPHONE LINE INTERFACE

Motorola => Freescale 

Order this document by TCA3388/D

TCA3388

Advance Information

Telephone Line Interface

The TCA3388 is a telephone line interface circuit which performs the basic

functions of a telephone set in combination with a microcontroller and a ringer.

It includes dc and ac line termination, the hybrid function with 2 adjustable

sidetone networks, handset connections and an efficient supply point.

TELEPHONE LINE

INTERFACE

SEMICONDUCTOR

TECHNICAL DATA

FEATURES

Line Driver and Supply

• DC and AC Termination of the Telephone Line

• Selectable DC Mask: France, U.K., Low Voltage

• Current Protection

• Adjustable Set Impedance for Resistive and Complex Termination

• Efficient Supply Point for Peripherals

• Hook Status Detection

Handset Operation

• Transmit and Receive Amplifiers

• Double Anti–Sidetone Network

• Line Length AGC

• Microphone and Earpiece Mute

• Transmit Amplifier Soft Clipping

Dialing and Ringing

• Interrupter Driver for Pulse–Dialing

• Reduced Current Consumption During Pulse–Dialing

• DTMF Interfacing

• Ringing via External Ringer

Application Areas

• Corded Telephony

• Cordless Telephony Base Station

• Answering Machines

• Fax

• Intercom

• Modem

20

1

DP SUFFIX

PLASTIC PACKAGE

CASE 738

20

1

FP SUFFIX

PLASTIC PACKAGE

CASE 751D

PIN CONNECTIONS

RXI 1

TXI 2

Mic 3

LAO 4

LAI 5

HYL 6

HYS 7

CM 8

IMP 9

SAO 10

20 RXO2

19 RXO1

18 Gnd

17 VCC

16 Iref

15 MUT

14 PI

13 HSO

12 DCM

11 SAI

(Top View)

ORDERING INFORMATION

Device

Tested Operating

Temperature Range

Package

TCA3388DP

TCA3388FP TA = 0° to +70°C

DIP

SOIC

This document contains information on a new product. Specifications and information herein

are subject to change without notice.

© Motorola, Inc. 1995

MOTOROLA ANALOG IC DEVICE DATA

1

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