DS1090

PRODUCTION

Low-Frequency, Spread-Spectrum EconOscillator

Industry's Only Spread-Spectrum Resistor-Programmable Oscillator

Data Sheet (Rev. 3) Product Selection Table

Part Models: 14
1ku List Price: Starting From $1.19

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Overview

Low-Cost, Spread-Spectrum EconOscillator™
Simple User Programming
Output Frequency Programmable from 125kHz to 8MHz
Dither Percentage Programmable from 0% to 8%
Dither Rate Programmable (f_MOSC / 512, 1024, 2048, or 4096)
3.0V to 5.5V Single-Supply Operation
CMOS/TTL-Compatible Output
Operating Temperature Range: -40°C to +85°C

The DS1090 is a low-cost, dithered oscillator intended to be used as an external clock for switched-mode power supplies and other low-frequency applications. The dithering or sweeping function reduces peak-radiated emissions from the power supply at its fundamental frequency, as well as harmonic frequencies. The device consists of a resistor-programmed master oscillator, factory-programmed clock prescaler, and a pin-programmed dither circuit. These features allow the DS1090 to be used in applications where a spread-spectrum clock is desired to reduce radiated emissions. A combination of factory-set prescalers and external resistor allows for output frequencies ranging from 125kHz to 8MHz. Both dither frequency and dither percentage are set using control pins.

Applications

Embedded Microcontrollers
Industrial Controls
Printers
Servers
Switch-Mode Power Supplies

Part Models: 14
1ku List Price: Starting From $1.19

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
DS1090U-1+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-1+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-16+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-16+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-2+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-2+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-2/V+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-2/V+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-32+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-32+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-4+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-4+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-8+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
DS1090U-8+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 19, 2018 - 1753N ASSEMBLY
		pcn_1753n
DS1090U-1+	PRODUCTION
DS1090U-1+T	PRODUCTION
DS1090U-2+	PRODUCTION
DS1090U-2+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

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Overview

Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Technical Articles 3

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