DS1085LZ-5+T

Overview

The DS1085LZ-5+T is a dual-output frequency synthesizer from Analog Devices/Maxim Integrated, operating on a single 5V supply. It features a user-programmable internal master oscillator ranging from 66MHz to 133MHz with a 5kHz resolution step size. The device generates 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 with independent programmability
• Master oscillator range of 66MHz to 133MHz with 5kHz resolution
• Nonvolatile EEPROM storage for default frequency settings
• Single 5V supply operation with power-down mode

Applications

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

Procurement Notes

Verify the specific ordering suffix '+T' against official documentation to confirm tape-and-reel packaging status, as datasheet tables primarily list 'Z' suffixes for SO packages. Confirm that the 'L' designation aligns with the 3.3V or 5V variant specifications provided in the manufacturer's component selection guides.

Selection Notes

Select this model for applications requiring a 5kHz frequency step size within the 8.1kHz to 133MHz output range. Ensure the system operates within the specified 0°C to +70°C temperature range and utilizes a 5V ±5% supply voltage. Verify that the 150mil SO package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the DS1085 EconOscillator family, which includes variants with 10kHz and 25kHz resolution steps. The 'L' prefix typically denotes low-voltage or specific package variations within the Maxim Integrated portfolio, while 'Z' indicates lead-free SO packaging. The 'T' suffix generally signifies reel packaging for surface-mount assembly.

Replacement Considerations

Direct replacements include DS1085Z-10 and DS1085Z-25 for different frequency resolutions. Cross-reference with DS1085LZ-12 or DS1085LZ-25 if lower voltage operation or specific pinout compatibility is required. Verify electrical parameters match before substitution.