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MC44864 PLL TUNING CIRCUIT

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Description

Order this document by MC44864/D Advance Information PLL Tuning Circuit with 1.3 GHz Prescaler and D/A Converters for Automatic Tuner Alignment The M.
Pin 6, 7, 8 9 10, 11 12, 20 13 14, 15, 16, 17 18 19 1 2 3 4 5 Symbol DA1, DA2, DA3 VCC1 HF1, HF2 Gnd CA B1, B3, B5, B7 SCL SDA XTAL PHO Amp In VCC2 VT.

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Datasheet Specifications

Part number
MC44864
Manufacturer
Motorola
File Size
203.86 KB
Datasheet
MC44864_Motorola.pdf
Description
PLL TUNING CIRCUIT

Features

* and function of the internal blocks is given below. Automatic Tuner Alignment The circuit generates the tuning voltage through the PLL. The output voltages of the D/A converters are equal to the tuning voltage plus a positive or negative offset of up to 31 steps. During the automatic alignment one f

Applications

* This device contains a PLL section and a DAC section and is MCU controlled through an I2C Bus. The PLL section contains all the functions required to control the VCO of a TV tuner. The IC generates the tuning voltage and the additional control signals, such as band switching voltages. The D/A secti

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