FEDL7012-04-01

1Semiconductor

This version: Sep. 2000

ML7012-04

2400 bps Single Chip Full Duplex Data Modem with Protocol

1/22

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

• Conforming to ITU-T Recommendations V.22 bis, V.22, and V.21: Asynchronous

• Error correction function conforming to MNP Class 4

• Serial interface: V.24 interface

• AT commands (excluding automatic command speed detection)

• Terminal data speed between DTE and DCE: 9600 bps, 2400 bps, 1200 bps, 300 bps

• Character format: 10 bit/character

• DTMF sending function

• Pulse-dial control signal output

• Call progress tone

• Auto answering function

• Built-in electronic HYB circuit (a line transformer can be directly coupled)

• Single +3 V power supply

• Power consumption: Typ. = 35 mA (V

• Package: 64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Product name: ML7012-04GA)

* MNP is a registered trademark of Microcom Inc.