73K324BL Hybrid Datasheet

73K324BL Datasheet, PDF, Equivalent


Part Number

73K324BL

Description

Single-Chip Modem w/Integrated Hybrid

Manufacture

TDK

Total Page 30 Pages
Datasheet
Download 73K324BL Datasheet


73K324BL
®
TDK SEMICONDUCTOR CORP.
73K324BL
V.22bis/V.22/V.21/V.23 Bell 212A
Single-Chip Modem w/Integrated Hybrid
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)
FEATURES
June 2001
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)
BLOCK DIAGRAM
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

73K324BL
73K324BL
V.22bis/V.22/V.21/V.23 Bell 212A
Single-Chip Modem w/Integrated Hybrid
DESCRIPTION (continued)
The 73K324BL is pin and software compatible with
the 73K222BL and 73K224BL, allowing system
upgrades and product differentiation with a single
component change.
The 73K324BL is designed to be a complete V.22bis
compatible modem on a chip. The complete modem
requires only the addition of the phone line interface,
a control microprocessor, and RS-232 level
converter for a typical system. Many functions were
included to simplify implementation of typical modem
designs. In addition to the basic 2400 bps QAM,
600/1200 bps DPSK and 300/1200 bps FSK
modulator/demodulator sections, the device also
includes
synch/asynch
converters,
scrambler/descrambler, call progress tone detect,
DTMF tone generator capabilities and handshake
pattern detectors. Test features such as analog loop,
digital loop, and remote digital loopback are
supported. Internal pattern generators are also
included for self-testing.
FEATURES (continued)
Adaptive equalization
performance over all lines
for
optimum
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
2


Features ® TDK SEMICONDUCTOR CORP. 73K324BL V.2 2bis/V.22/V.21/V.23 Bell 212A Single-Ch ip Modem w/Integrated Hybrid DESCRIPTI ON The 73K324BL is a highly integrated single-chip modem IC which provides the functions needed to construct a V.22bi s compatible modem, capable of 2400 bps full-duplex operation over dial-up lin es. The 73K324BL is an enhancement of t he 73K324L singlechip modem which adds the hybrid hook switch control, and dri ver to the 73K324L. The 73K324BL integr ates analog, digital, and switched-capa citor array functions on a single chip, offering excellent performance and a h igh level of functional integration in a 32-Lead PLCC package. The 73K324BL op erates from a single +5 V supply for lo w power consumption. The 73K324BL is de signed to appear to the systems designe r as a microprocessor peripheral, and w ill easily interface with popular singl e-chip microprocessors (80C51 typical) for control of modem functions through its 8-bit multiplexed address/data bus or via an optional seria.
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