73K324BL
CCITT V.22bis,V.23,V.22,V.21, Bell 212A
Single-Chip Modem w/ Integrated Hybrid
DATA SHEET
DESCRIPTION (continued)
FEATURES (continued)
The 73K324BL is pin and software compatible with
the 73K222BL and 73K224BL, allowing system
upgrades and product differentiation with a single
component change.
•
Adaptive
performance over all lines
equalization
for
optimum
•
Programmable transmit attenuation (16 dB, 1
dB
steps),
selectable
receive
boost
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,
(+18 dB)
•
Call progress,
unscrambled mark, S1, and signal quality
monitors
carrier,
answer
tone,
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
•
•
•
DTMF, answer, SCT, and guard tone
generators
Test modes available: ALB, DL, RDL, mark,
space, alternating bit, S1 pattern
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.
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
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© 2005, 2008 TERIDIAN Semiconductor Corporation
Rev 6.1
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