TDK 73M2901/5V - Manual
TDK 73M2901/5V – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – HARDWARE DESCRIPTION
- Page 3 – CTS; PIN DESCRIPTIONS
- Page 4 – OSCILLATOR PIN DESCRIPTION
- Page 5 – ELECTRICAL SPECIFICATIONS
- Page 6 – MAXIMUM TRANSMIT LEVELS
- Page 10 – FIRMWARE DESCRIPTION; FIRMWARE REQUIREMENTS; DTR; For a detailed description of the firmware consult the TDK; FIRMWARE FEATURES; “AT” command set; ring CID data operations
- Page 11 – DESIGN CONSIDERATIONS; LAYOUT CONSIDERATIONS; F electrolytic; TELEPHONE LINE INTERFACE; TDK73M2901 Demo boards use the line interface shown on the
- Page 12 – Recommended Line Interface; Recommended Schematics Arrangement
- Page 13 – TYPICAL USA APPLICATION SCHEMATICS
- Page 16 – MECHANICAL DRAWINGS
- Page 18 – PACKAGE PIN DESIGNATIONS; ORDERING INFORMATION; PART DESCRIPTION; 2-Pin Plastic Leaded Chip Carrier; TDK Semiconductor Corporation
- Page 19 – Removed 5V pin callouts from package drawing.
73M2901/5V
Advanced Single
Chip Modem
DESCRIPTION
The 73M2901/5V is a single-chip modem that
combines all the controller (DTE) and data pump
functions necessary to implement an intelligent
V.22bis data modem. This device is based on TDK
Semiconductor’s implementation of the industry
standard 8032 microcontroller core with a proprietary
multiply and accumulate (MAC) coprocessor; Sigma -
Delta A/D and D/A converters; and an analog front
end. The ROM and RAM necessary to operate the
modem are contained on the device. Additionally,
the 73M2901/5V provides an on-chip oscillator and
Hybrid driver.
The 73M2901/5V is a high performance, low
voltage, low power, single chip modem capable of
data transmission and reception through 2400bps.
The 73M2901/5V is intended for embedded
applications and battery operation. This device
offers options for a low power conventional 5 volt
design with optional internal hybrid and country
specific call progress support.
FEATURES
·
Low overall system chip count. True one
chip solution for embedded systems
·
Low operating power (~250mW @ 5V,
automatic low power standby and power
down options available)
·
Internal ROM and RAM for normal operation
·
On chip optional hybrid driver
·
Designed for +5 volts (+/-10%)
·
Data speeds:
V.22bis – 2400bps
V.22, Bell 212 – 1200bps
V.21, Bell 103 – 300bps
V.23 – 1200/75bps (w/ turnaround (PAVI))
Bell 202 – 1200bps
Bell 202 and V23 4-wire operations
·
Dynamic Range: -9dBm to –43 dBm
·
“AT” command set
·
Host access to modem port pins via AT
commands for custom I/O expansion
·
DTMF tone generation and detection
·
Call progress support with multinational
options (FCC68, CTR21, JATE…)
·
Caller ID capability
·
Blacklisting capability
·
Packaging: 32 pin PLCC or 44 pin TQFP
BLOCK DIAGRAM
ROM
MAC
RAM
CPU
AFE
Hybrid
RxA
TxAP
TxAP
HBDEN
TxCLK
ASRCH
RING
DTR
RI
CTS
DCD
DSR
RTS
RxCLK
TxD
RxD
USR10
USR11
RELAY
August 2001
TDK SEMICONDUCTOR CORP.
®
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Summary
73M2901/5V Advanced Single Chip Modem 2 HARDWARE DESCRIPTION The 73M2901/5V is designed for a single +5 volt supply with low power consumption (~250mW @ 5 volts). The modem supports automatic standby idle mode. The modem will also accept a request to power down from the DTE via hardware control. No ...
73M2901/5V Advanced Single Chip Modem 3 RESET A reset is accomplished by holding the RESET pin high. To ensure a proper power-on reset, the reset pin must be held high for a minimum of 3 m s. At power on, the voltage at VPD, VPA, and RESET must come up at the same time for a proper reset. ASYNCHRONO...
73M2901/5V Advanced Single Chip Modem 4 PIN DESCRIPTIONS (continued) OSCILLATOR PIN DESCRIPTION PIN NAME 32-PIN 44-PIN TYPE DESCRIPTION OSCIN 24 26 I Crystal input for internal oscillator, also input for external source. OSCOUT 23 25 O Crystal oscillator output. DIGITAL INTERFACE PIN DESCRIPTION PIN...
