FEDL7012-04-01
1
Semiconductor
ML7012-04
2400 bps Single Chip Full Duplex Data Modem with Protocol
This version: Sep. 2000
GENERAL DESCRIPTION
The ML7012-04 is a single chip modem LSI device that enables data communication conforming to ITU-T
recommendations V.22bis, V.22, and V.21. This device is equipped with the error correction protocol function
conforming to MNP Class 4. (The MNP Class 4 can be used for V.22bis or V.22.)
The ML7012-04 consists of high speed DSP, analog front end, and digital logic circuit. In addition, this device
provides local analog loop testing, synchronous/asynchronous switching, dialing, and auto answering functions.
The ML7012-04 has a serial interface as an external interface. When integrated into the system, it is controlled
from a control CPU through a serial interface (e.g. UART). By connecting a level converter, the ML7012-04 can
easily implement a modem that can be controlled through the RS-232C interface.
FEATURES
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Conforming to ITU-T Recommendations V.22 bis, V.22, and V.21: Asynchronous
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Error correction function conforming to MNP Class 4
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Serial interface: V.24 interface
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AT commands (excluding automatic command speed detection)
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Terminal data speed between DTE and DCE: 9600 bps, 2400 bps, 1200 bps, 300 bps
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Character format: 10 bit/character
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DTMF sending function
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Pulse-dial control signal output
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Call progress tone
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Auto answering function
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Built-in electronic HYB circuit (a line transformer can be directly coupled)
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Single +3 V power supply
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Power consumption: Typ. = 35 mA (V
DD
= 3.3 V)
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Package: 64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Product name: ML7012-04GA)
* MNP is a registered trademark of Microcom Inc.
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