DS1085Z-50+

Overview

The DS1085Z-50+ is a dual-output frequency synthesizer from the EconOscillator family, manufactured by Analog Devices/Maxim Integrated. It operates on a single 5V supply and requires no external timing components. The device features a programmable internal master oscillator ranging from 66MHz to 133MHz with a 50kHz step size. It provides two synchronous outputs: a reference oscillator (OUT0) from 8.2MHz to 133MHz and a main oscillator (OUT1) from 8.1kHz to 133MHz. Configuration is managed via a 2-wire serial interface, with all settings stored in nonvolatile EEPROM memory for standalone operation.

Feature Summary

• Dual synchronous outputs: Reference (OUT0) and Main (OUT1) oscillators
• Programmable frequency range from 8.1kHz to 133MHz with 50kHz resolution
• Nonvolatile EEPROM storage for factory or user-programmed frequency settings
• Single 5V supply operation with power-down mode capability

Applications

• Processor-controlled peripheral clock generation
• Standalone oscillator applications requiring fixed frequencies
• Systems needing dynamically programmable clock sources via 2-wire interface

Procurement Notes

Verify the specific ordering suffix Z-50 confirms the 50kHz step size and SO package variant. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the application voltage matches the specified 5V nominal requirement.

Selection Notes

Select the DS1085Z-50+ when a 50kHz frequency resolution is required within the 8.1kHz to 133MHz output range. Compare against DS1085Z-10 and DS1085Z-25 if finer or coarser step sizes are needed. Ensure the system supports a single 5V supply and utilizes a 2-wire serial bus for configuration.

Part Context

The DS1085Z-50+ belongs to the DS1085 EconOscillator series, which replaces traditional crystal resonators with silicon-based programmable solutions. This series eliminates the need for external timing components, simplifying PCB layout and reducing component count in embedded systems requiring precise clock signals.

Replacement Considerations

Direct replacements include other variants within the DS1085 family such as DS1085Z-10+ or DS1085Z-25+, differing primarily in frequency step resolution. Verify pin compatibility and register mapping before substitution.