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The ML7005 is a multi-functional DTMF transceiver LSI that incorporates a DTMF signal generator, a DTMF signal receiver, a call progress tone generator, a call progress tone detector, and a FAX (FX) signal detector. Each functional block can be controlled by an external MCU via a 4-bit processor interface. The ML7005 does not include a modem. However, DTMF system data transmission is achievable at rates lower than 66 bps by configuring the DTMF receiver in high-speed detection mode. The ML7005 operates with low power consumption, making it suitable for remote control systems, particularly for Automatic Cost Routing (ACR) controllers.

The ML7005 serves as a versatile solution for applications requiring dual-tone multi-frequency (DTMF) signaling. It integrates a variety of functionalities into a single chip, which reduces the need for multiple discrete components, thereby minimizing board space and simplifying circuit design. The built-in DTMF signal generator allows for the transmission of DTMF tones, which are essential for signaling in telecommunication systems.

The DTMF signal receiver is capable of detecting tones generated by a telephone keypad or other DTMF sources, facilitating communication and control in remote applications. In addition to DTMF capabilities, the inclusion of a call progress tone generator and detector allows the device to recognize and generate standard call progress tones, enhancing its utility in telephony applications.

The FAX signal detector further expands the ML7005's functionality, enabling it to identify and respond to fax signals, which is particularly beneficial in environments where fax communication is prevalent. The chip's architecture allows for seamless control of these functionalities through an external microcontroller unit (MCU) via a 4-bit processor interface, enabling system designers to implement customized logic and control schemes.

Operating at low power consumption makes the ML7005 an ideal choice for battery-operated devices and remote control systems. Its capability to transmit DTMF data at speeds below 66 bps, particularly in high-speed detection mode, ensures efficient communication without the need for a modem. This feature is particularly advantageous in Automatic Cost Routing (ACR) systems, where efficient and reliable data transmission is critical for cost-effective operation.

In summary, the ML7005 is a highly integrated and efficient DTMF transceiver that provides essential telecommunication functionalities, making it suitable for a wide range of applications in remote control and telephony systems.The ML7005 is a multi-functional DTMF transceiver LSI with built-in a DTMF signal generator, a DTMF signal receiver, a call progress Tone generator, a call progress Tone detector, and a FAX (FX) signal detector. Each functional block CAN be controlled by an external MCU via a 4-bit processor Interface The ML7005 does not contains a modem.

However, the DTMF system data transmission is possible at less than 66 bps by setting the DTMF receiver to the high-speed detection mode. The ML7005 operates with low-power consumption and is suitable for remote control systems, especially for ACR (Automatic Cost Routing) controllers.

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