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MC44871 Datasheet (PDF) - Motorola, Inc

MC44871 Datasheet PDF - Motorola, Inc
Part # MC44871
Download  MC44871 Download

File Size   202.3 Kbytes
Page   12 Pages
Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc
Description PLL TUNING CIRCUIT WITH HIGH SPEED I2C BUS AND 30 V TUNING SUPPLY

MC44871 Datasheet (PDF)

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MC44871 Datasheet PDF - Motorola, Inc

Part # MC44871
Download  MC44871 Click to download

File Size   202.3 Kbytes
Page   12 Pages
Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc
Description PLL TUNING CIRCUIT WITH HIGH SPEED I2C BUS AND 30 V TUNING SUPPLY

MC44871 Datasheet (HTML) - Motorola, Inc

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MC44871 Product details

PLL Tuning Circuit with DC-DC Converter, I2C Bus and ADC

The MC44871 is a tuning circuit for TV, VCR and Multimedia tuner applications. This device contains on one chip all the functions required for PLL control of a VCO. This integrated circuit also contains a high frequency prescaler and thus can handle frequencies up to 1.3 GHz.
The MC44871 has an integrated dc/dc converter to generate the 30 V supply voltage for the tuning amplifier on the chip. A tuner using the MC44871 does not require an external 30 V supply.
The MC44871 is controlled by a I2C bus, and has a chip address function. The MC44871 data format is the same as the MC44818.
The MC44871 is manufactured on a single silicon chip using Motorola’s high density bipolar process, MOSAIC (Motorola Oxide Self Aligned Implanted Circuits).

• The Pin Called VCC2 for the MC44818 is Now Called CP (Charge
   Pump). This Pin is the Output of the DC/DC Converter; a 1.0 nF
   Capacitor Replaces the Need for an External 30 V Supply
• High Speed I2C Bus (up to 800 kHz)
• I2C Bus Read Mode for Lock Detector and AFC Level
• HF Input is Balanced
• MC44871 has Three PNP High Current (30 mA) Band Buffers (B0, B1, B2) and One NPN Low Current (5.0 mA) Band Buffer (B4)
• VCC Internally Supplies PNP Band Buffers
• The Tuning Voltage is Generated Through an External Pull–Up Resistor (750 kΩ)
• Less Phase Comparator Output Current
• Single 5.0 V Supply Operation




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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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