MC44864M ,PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND D/A CONVERTERSOrder this document by MC44864/D** ** !** *!* * #* * *$* ** * "** *! ** PLL TUNING CIRCUIT!* ** ..
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MC78L05ACDR2 ,100mA, 5V, Positive Voltage RegulatorOrder this documentMOTOROLA by AN1319/DSEMICONDUCTORAPPLICATION NOTE ** * * ** ** **Prepared by: W ..
MC78L05ACDR2G ,100mA, 5V, Positive Voltage RegulatorOrder this documentMOTOROLA by AN1319/DSEMICONDUCTORAPPLICATION NOTE ** * * ** ** **Prepared by: W ..
MC44864M
PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND D/A CONVERTERS
Order this document by MC44864/D
ORDERING INFORMATION--! -! # $ --
" ! !
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). 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)
MOSAIC is a trademark of Motorola, Inc.
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
