DS8911 - Sound Up-Conversion Frequency Synthesizer

Product Overview

National Semiconductor

Datasheet Details

Part number	DS8911
Manufacturer	National Semiconductor
File Size	182.13 KB
Description	Sound Up-Conversion Frequency Synthesizer
Datasheet	DS8911 Datasheet
Additional preview pages of the DS8911 datasheet.

Product details

Description

The DS8911 is a digital Phase-Locked Loop (PLL) frequency synthesizer intended for use as a Local Oscillator (LO) in electronically tuned radios The device is used in conjunction with a serial data controller a loop filter some varactor diodes and several passive elements to provide the local oscillator function for both AM and FM tuning The conventional superheterodyne AM receiver utilizes a low IF or down conversion tuning approach whereby the IF is chosen to be below the frequencies to be rec

Features

Y Y Y Y Y Y Direct synthesis of LW MW SW FM and WB frequencies Serial data entry for simplified processor control 10 12 5 25 and 100 kHz reference frequencies 8 possible tuning resolutions (see Table II) An op amp with high impedance inputs for loop filtering Programmable mixer with high dynamic range TRI-STATE is a registered trademark of National Semiconductor Corporation.

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Other Datasheets by National Semiconductor

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Published: Mar 30, 2005 |