73K324BL データシートの表示（PDF） - Teridian Semiconductor Corporation

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73K324BL

CCITT V.22bis,V.23,V.22,V.21,Bell 212A Single-Chip Modem w/ Integrated Hybrid

Teridian Semiconductor Corporation 

Simplifying System Integration™

73K324BL

CCITT V.22bis,V.23,V.22,V.21,Bell 212A

Single-Chip Modem w/ Integrated

Hybrid

DATA SHEET

DESCRIPTION

The 73K324BL is a highly integrated single-chip

modem IC which provides the functions needed to

construct a V.22bis compatible modem, capable of

2400 bps full-duplex operation over dial-up lines. The

73K324BL is an enhancement of the 73K324L single-

chip modem, which adds the hybrid hook switch

control, and driver to the 73K324L. The 73K324BL

integrates analog, digital, and switched-capacitor

array functions on a single chip, offering excellent

performance and a high level of functional integration

in a 32-Lead PLCC package.

The 73K324BL operates from a single +5 V supply for

low power consumption.

The 73K324BL is designed to appear to the systems

designer as a microprocessor peripheral, and will

easily interface with popular single-chip micro-

processors (80C51 typical) for control of modem

functions through its 8-bit multiplexed address/data

bus or via an optional serial control bus. An ALE

control simplifies address demultiplexing. Data

communications normally occur through a separate

serial port.

(continued)

BLOCK DIAGRAM

JUNE 2008

FEATURES

• Includes features of 73K324L single-chip

modem

• On chip 2-wire/4-wire hybrid driver and off

hook relay buffer

• One-chip multi-mode V.22bis/V.22/V.21/V.23

and Bell 212A compatible modem data pump

• FSK (300/1200 bps), DPSK (600, 1200 bps), or

QAM (2400 bps) encoding

• Software compatible with other Semi-

conductor K-Series one-chip modems

• Interfaces directly with standard micro-

processors (80C51 typical)

• Parallel or serial bus for control

• Selectable asynch/synch with internal

buffer/debuffer and scrambler/descrambler

functions

• All asynchronous and synchronous operating

modes (internal, external, slave)

(continued)

OH

8-BIT

µP

BUS

INTERFACE

TXD

RXD

SERIAL

INTERFACE

FSK

MODULATOR

DTMF,

ANSWER,

GUARD &

CALLING

TONE

GENERATOR

BUFFER

SCRAMBLER

DI-BIT/

QUAD-BIT

ENCODER

FIR

PULSE

SHAPER

QAM/

DPSK

MODULATOR

EQUALIZER

FILTER

FILTER

ATTENUATOR

DEBUFFER

DESCRAMBLER

DI-BIT/

QUAD-BIT

DECODER

DIGITAL

SIGNAL

PROCESSOR

RECEIVE

FUNCTIONS

FILTER

A/D

EQUALIZER

FIXED

DEMODULATOR

TONE

DETECTION

PASS

BAND

FILTER

AGC

2W/4W

HYBRID

ANTI-ALIAS

FILTER

GAIN

BOOST

TXA1

TXA2

RXA

Page: 1 of 34

© 2005, 2008 TERIDIAN Semiconductor Corporation

Rev 6.1

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