73K324BL中文資料TERIDIAN數(shù)據(jù)手冊PDF規(guī)格書

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.

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 Semiconductor K-Series one-chip modems

? Interfaces directly with standard microprocessors (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)

? Adaptive equalization for optimum

performance over all lines

? Programmable transmit attenuation (16 dB, 1

dB steps), selectable receive boost

(+18 dB)

? Call progress, carrier, answer tone,

unscrambled mark, S1, and signal quality

monitors

? DTMF, answer, SCT, and guard tone

generators

? Test modes available: ALB, DL, RDL, mark,

space, alternating bit, S1 pattern

? CMOS technology for low power consumption

(typically 100 mW @ 5 V) with power-down

mode (15 mW @ 5 V)

? TTL and CMOS compatible inputs and outputs