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DS8907

Part Number	DS8907
Manufacturer	National Semiconductor
Description	Phase-Locked Loop Frequency Synthesizer
Published	Mar 30, 2005
Detailed Description	DS8907 AM FM Digital Phase-Locked Loop Frequency Synthesizer July 1986 DS8907 AM FM Digital Phase-Locked Loop Frequenc...
Datasheet	DS8907 PDF File

Overview

DS8907 AM FM Digital Phase-Locked Loop Frequency Synthesizer July 1986 DS8907 AM FM Digital Phase-Locked Loop Frequency Synthesizer General Description The DS8907 is a PLL synthesizer designed specifically for use in AM FM radios It contains the reference oscillator a phase comparator a charge pump a 120 MHz ECL I2L dual modulus programmable divider and an 18-bit shift register latch for serial data entry The device is designed to operate with a serial data controller generating the necessary division codes for each frequency and logic state information for radio function inputs outputs The Colpitts reference oscillator for the PLL operates at 4 MHz A chain of dividers is used to generate ...

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