73M2901CE Product Brief
World's Lowest Cost Modem
is also the Smallest
The new 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,
resulting in a 25% cost and 35% footprint reduction compared to other solutions on the mar-
ket today.
Flexible, Low-Cost Modular Design
The modem's reduced external components and 5x5 mm
2
MLF (QFN) package make it the
smallest and lowest cost solution in the market today. The device is truly a "one chip fits all"
implementation for applications including set-top box, point-of-sale terminals, automatic
teller machines, remote monitoring devices, metering devices, vending machines and smart
card readers.
Pin Compatibility
Another distinctive feature of this device is pin compatibility with TDK's 73M2901CL, and the
new 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.
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.
Key Applications
•
Set-top Boxes
•
Point of Sale Terminals
•
Automatic Teller Machines
•
Remote Monitoring Devices
•
Utility Meters
•
Smart Card Readers
•
Pay Phones
Key Features
•
V.22bis-2400bps and below single
chip modem
•
V.23 with PAVI turnaround
•
Bell212 synchronous and
asynchronous fast connect support
•
"AT" Command through standard
UART
•
Worldwide Caller ID with Call Waiting
•
DPSK Fast Connects
•
DTMF Generation and Detection
•
Line in Use, Parallel Pick Up and
Ring Detection in software
•
V.42/V.42bis/MNP2-4 Built-in Support
•
SMS Messaging Support
73M2901CE Block Diagram
Worldwide Caller ID (Level I&II) Support
• FSK demodulation
• DTMF demodulation
• Line reversal detection
• Triggered CID decoding
• Permanent CID decoding
• Continuous/Snoop mode
Ring Detection
• New detection mode option eliminates
external components
• Supports classic hardware detection mode
Line In Use detection (LIU)
• Classic line voltage drop detection
• Optional energy detection mode with no
additional hardware
Parallel Pick Up detection (PPU)
• Phone line voltage drop or energy detection
• Line seizure aborted as soon as intrusion is
detected
V.42/V.42bis/MNP2-4 Support
• Error correction and/or data compression
support
• Source code provided for integration into
host processor
Modular Application
• Modular approach fits precise needs
• Cost is optimized for the application
Certification Support
• Programmable to support any country
• US, CTR21, UK, Japan, France, Italy,
Germany, UK, Spain, Australia, etc.
• All networks tones are automatically
configured
• Specific PTT testing commands
• Controllable DAA state: On hook, off hook
Demo Boards/Reference Designs
• FCC and CTR21 DAA, low cost software and
hardware based intrusion and ring detection
options
• Dual footprint hard/soft modem reference
design
Application Notes
• Higher transmission levels @ 3.3V - Caller ID -
LIU & PPU - PTT testing
• V.23 PAVI - V42/V42bis - Manufacturing test -
Canal+ compatibility
Low Power
• As low as 9.5mA operating current
• Standby and power down modes
• 2.7V through 3.6V power supply
Packaging
• 32 pin QFN
• 32 pin TQFP
For immediate technical information and the name of a local representative or distributor, visit
www.tdksemiconductor.com,
send an e-mail to
support@tdksemiconductor.com
or call (714) 508-8800.
6440 Oak Canyon
Irvine, CA 92618-5201
714-508-8800 (Tel)
714-508-8878 (Fax)
No responsibility is assumed by TDK Semiconductor Corporation for use of this product nor for any infringements of patents and trademarks
or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of TDK
Semiconductor Corporation, and the company reserves the right to make changes in specifications at any time without notice. Accordingly,
the reader is cautioned to verify that the data sheet is current before placing orders.
© 2004 TDK Semiconductor Corporation
3/04 - rev2.0
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
