DS1075Z-800

Overview

The DS1075Z-800 is a fixed-frequency oscillator from the EconOscillator/Divider family, manufactured by Analog Devices Inc./Maxim Integrated. It provides dual outputs with a maximum frequency of 80 MHz. The device operates on a single 5V supply and features user-programmable on-chip dividers (range 2–513) and prescalers (divide-by-2 or 4). It supports internal, external clock, or crystal reference options. Key electrical characteristics include an initial frequency tolerance of ±0.5%, combined variation over temperature and voltage of ±1%, and a typical active supply current of 50 mA at 5V. The unit is housed in an 8-pin SOIC package.

Feature Summary

• Dual fixed-frequency outputs up to 80 MHz
• User-programmable prescaler (÷2, ÷4) and divider (÷2 to ÷513)
• Single 5V supply operation with power-down mode
• Supports internal, external clock, or crystal references

Applications

• Clock generation for digital systems requiring precise timing
• Microcontroller and processor clock sources
• Communication equipment requiring stable frequency references

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type matches design requirements. Check for end-of-life status as availability may be limited. Ensure programming tools are available if field configuration is needed.

Selection Notes

Select based on required output frequency and reference source. Consider programmability needs for future design changes. Evaluate power consumption requirements against active and standby modes. Verify operating temperature range suitability for the application environment.

Part Context

Part of the DS1075X series of EconOscillators. Offers flexibility through nonvolatile memory storage of divider and prescaler settings. Allows on-site programming without external components. Compatible with standard 1-Wire programming protocols for register configuration.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family. Verify frequency stability and package dimensions match existing designs. Assess programming interface compatibility if reprogramming is required.

FAQ

How is the programming mode entered?

Programming mode is entered by powering up the device with a pull-up resistor connected between the IN/OUT pin and VCC.

What is the function of the PDN/SELX pin?

The PDN/SELX pin can be configured via nonvolatile memory to either enable power-down mode or select between internal and external/crystal references on the fly.

Can the output duty cycle be adjusted?

The datasheet specifies a typical output duty cycle of 40% to 60% but does not indicate user-adjustable duty cycle control.