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DS1085

Maxim Integrated
Part Number DS1085
Manufacturer Maxim Integrated
Description EconOscillator Frequency Synthesizer
Published Mar 26, 2020
Detailed Description www.maxim-ic.com FEATURES § User-Programmable Frequency Synthesizer § Programmable From 8.1kHz to 133MHz § Dual Synchron...
Datasheet PDF File DS1085 PDF File

DS1085
DS1085


Overview
www.
maxim-ic.
com FEATURES § User-Programmable Frequency Synthesizer § Programmable From 8.
1kHz to 133MHz § Dual Synchronous Outputs § 8.
2MHz to 133MHz Reference Oscillator Output § 8.
1kHz to 133MHz Main Oscillator Output § Three Resolution Options § 2-Wire Serial Interface § 0.
75% Absolute Accuracy § Nonvolatile (NV) Frequency Settings § Single 5V Supply § No External Timing Components § Power-Down Mode ORDERING INFORMATION DEVICE PACKAGE DS1085Z-10 150mil SO DS1085Z-25 150mil SO DS1085Z-50 150mil SO STEP SIZE 10kHz 25kHz 50kHz DS1085 EconOscillator Frequency Synthesizer PIN ASSIGNMENT OUT1 OUT0 VCC GND 1 2 3 4 8 7 6 5 SO (150mil) SCL SDA CTRL1 CTRL0 PIN DESCRIPTION OUT1 - Main Oscillator Output OUT0 - Reference Oscillator Output VCC GND - Power-Supply Voltage - Ground CTRL1 - Control Pin for OUT1 CTRL0 - Control Pin for OUT0 SDA - 2-Wire Serial Data Input/Output SCL - 2-Wire Serial Clock OSCILLATOR OUTPUT RANGE 8.
1kHz to 133MHz 8.
1kHz to 133MHz 8.
1kHz to 133MHz DESCRIPTION The DS1085 is a dual-output frequency synthesizer requiring no external timing components for operation.
It can be used as a standalone oscillator or as a dynamically programmed, processor-controlled peripheral device.
An internal master oscillator can be programmed from 66MHz to 133MHz with three resolution options of 10kHz, 25kHz, and 50kHz.
A programmable, 3-bit prescaler (divide-by-1, 2, 4, or 8) permits the generation of a reference oscillator output (OUT0) from the master, ranging from 8.
2MHz to 133MHz.
A second independent prescaler and a 1-to-1025 divider allows the generation of a main oscillator output (OUT1) from 8.
1kHz to 133MHz.
The two outputs, although synchronous with the master, can be independently programmed.
The combination of programmable master oscillator, prescalers, and dividers allows the generation of thousands of user-specified frequencies.
All master oscillator, prescaler, and divider settings are stored in NV (EEPROM) memory, pro...



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