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MC145740 Datasheet (PDF) - Motorola, Inc
MC145740 Datasheet PDF - Motorola, Inc
Part # MC145740
Download  MC145740 Download
File Size   144.73 Kbytes
Page   12 Pages
Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc
Description DUAL TONE MULTIPLE FREQUENCY LINE INTERFACE

MC145740 Datasheet (PDF)

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MC145740 Datasheet PDF - Motorola, Inc

Part # MC145740
Download  MC145740 Click to download

File Size   144.73 Kbytes
Page   12 Pages
Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc
Description DUAL TONE MULTIPLE FREQUENCY LINE INTERFACE

MC145740 Datasheet (HTML) - Motorola, Inc


MC145740 Product details

Dual Tone Multiple Frequency Line Interface

The MC145740 is a silicon gate HCMOS LSI designed for general purpose Dual Tone Multiple Frequency (DTMF) communications, and contains a DTMF signal generator and a receiver for all 16 standard digits.
The generator block has a differential line driver which drives a 600 Ω load with 0 dBm level. The transmit signal level is adjusted in 1 dB steps by the programmable attenuator.
The receiver block has an Auto Gain Control (AGC) amplifier to demodulate 50 dB (typ) dynamic range of DTMF signals to the hexadecimal codes.
The device also includes a serial control interface that permits a CPU to exercise the following built–in features.

• Single Power Supply: 3.6 to 5.5 V
• DTMF Generator and Receiver for All 16 Standard Digits
• 0 dBm Line Driver Into 600 Ω Load
• AGC Amplifier
• Programmable Transmit Attenuator
• Serial Control Interface
• Power Down Mode, Less Than 1 µA




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About Motorola, Inc

Motorola, Inc. was an American multinational telecommunications company that was founded in 1928. It was headquartered in Schaumburg, Illinois and was one of the largest providers of mobile phones, telecommunication equipment, and semiconductors. Throughout its history, Motorola was known for its innovation in the field of telecommunications, including the development of the world's first commercially available cellular telephone, the DynaTAC, and the world's first two-way pager, the Pageboy.

In 2011, Motorola split into two separate companies: Motorola Mobility and Motorola Solutions. Motorola Mobility was later acquired by Google in 2012, and is now a subsidiary of Lenovo. Motorola Solutions focuses on public safety and commercial and industrial communication solutions. The company provides a wide range of products including two-way radios, mobile computing devices, and network infrastructure equipment.

Motorola was one of the pioneers of the mobile phone industry and has a rich history of innovation and technological advancements. The company's legacy continues through its subsidiaries and its technology and products continue to be used around the world.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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