73M2901CE
V.22bis Single Chip Modem
APRIL 2004
DESCRIPTION
FEATURES
The 73M2901CE low speed modem integrates a
data pump, controller, and analog front end in a 3.3V
device with a powerful "AT" command host
interface. The modem reduces external component
count/cost by incorporating many features like
parallel phone detect, Line-In-Use and Ring
detection in software without additional components
required.
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True one chip solution for embedded systems
As low as 9.5mA operating with standby and
power down mode available
Power supply operation from 3.6V to 2.7V
Data speed:
V.22bis – 2400bps
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V.22/Bell212 – 1200bps
V.21/Bell103 – 300bps
V.23 – 1200/75bps (with PAVI turnaround)
Bell202 – 1200bps
Bell202/V23 4-wire operation
International Call Progress support
FCC68, CTR21, JATE, etc.
Worldwide Caller ID capability
Type I and II support
The device is a "one chip fits all” solution for
applications including set-top boxes, point-of-sale
terminals, automatic teller machines, utility meters,
vending machines and smart card readers.
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Another distinctive feature of this device is pin
compatibility with TDK’s flagship embedded hard
modems, the 73M2901CL, and the 73M1903 soft
modem AFE. This offers customers a cost effective
method to design for both hard or soft modem
solutions in the same system as a risk-free cost
reduction path.
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EIA 777 compliant
DTMF generation and detection
SMS messaging support
On chip hybrid driver
Blacklisting capability
Line-In-Use and Parallel Pick-Up (911) detection
with voltage or low cost energy detection method
Incoming ring energy detection through CID path;
no optocoupler required
Manufacturing Self Test capability
Backward compatible with 73M2901CL
Packaging:
Complete Support and Modem Reference Designs
Error correction software and support are part of the
solution offered by TDK Semiconductor. Our in-
house application engineering team is here to help
you meet your international certification needs.
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32 lead QFN
32 pin TQFP packages
BLOCK DIAGRAM
Ó 2004 TDK Semiconductor Corporation
04/15/04- V2.2.1