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MC44864

Part Number	MC44864
Manufacturer	Motorola
Description	PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND D/A CONVERTERS
Published	May 22, 2005
Detailed Description	Order this document by MC44864/D Advance Information PLL Tuning Circuit with 1.3 GHz Prescaler and D/A Converters for A...
Datasheet	MC44864 PDF File

Overview

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 MC44864 is a tuning circuit for TV 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 section generates three additional varactor voltages to feed all of the varactors of the tuner with individually optimized control voltages (automatic tuner adjustment).
The MC44864 is manufactured on a single silicon chip using Motorola’s high density bipolar process, MOSIAC™ (Motorola Oxide Self–Aligned Implanted Circuits).
MC44864 PLL TUNING CIRCUIT WITH 1.
3 GHz PRESCALER AND D/A CONVERTERS SEMICONDUCTOR TECHNICAL DATA • • • • • • • • • • • • • • • Complete Single Chip System for MPU Control Selectable ÷8 Prescaler Accepts Frequencies up to 1.
3 GHz 15 Bit Programmable Divider Accepts Input Frequencies up to 165 MHz Programmable Reference Divider 3–State Phase/Frequency Comparator Operational Amplifier for Direct Varactor Control with Low Saturation Voltage Four Output Buffers (15 mA) Output Options for 62.
5 kHz, Reference Frequency and the Programmable Divider The HF Input is Symmetrical Three 6 Bit DACs for Automatic Tuner Adjustment Allowing Use of Non–Matched Varactors Better Tuner Performances Through Optimum Filter Response I2C Bus Controlled Four Chip Addresses for the PLL Section Four Chip Addresses for the D/A Section ESD Protected to MIL–STD–883C, Method 3015.
7 (2,000 V, 1.
5 kΩ, 150 pF) PIN CONNECTIONS M SUFFIX PLASTIC PACKAGE CASE 967 (EIAJ–20) 20 1 XTAL PHO Amp In VCC2 VTUN DA1 DA2 1 2 3 4 5 6 7 8 9 20 Gnd 19 SDA 18 SCL 17 B7 16 B5 15 B3 14 B1 13 CA 12 Gnd 11 HF2 MOSAIC is a trademark of Motorola, Inc.
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.
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