DS1075Z-803

Overview

The DS1075Z-803 is a fixed-frequency oscillator and divider from the DS1075 series, manufactured by Analog Devices/Maxim Integrated. It operates on a single 5V supply and requires no external components for basic operation. The device features dual outputs: a programmable main output (IN/OUT) and a reference output (OUT0). Key electrical specifications include a maximum operating frequency of 80 MHz, an initial frequency tolerance of ±0.5%, and combined variation over temperature and voltage of ±1%. It supports internal, external clock, or crystal references and includes user-programmable prescaler and divider registers stored in nonvolatile memory.

Feature Summary

• Dual fixed-frequency outputs with frequencies up to 80 MHz
• User-programmable on-chip dividers (range 2–513) and prescalers (divide-by-2 or 4)
• Single 5V supply operation with power-down mode reducing current to 0.8 µA
• Synchronous output gating prevents truncated pulses during enable/disable transitions

Applications

• Clock generation for digital systems requiring precise timing references
• Buffering and dividing crystal oscillator signals
• Systems requiring selectable internal or external clock references via SELX pin

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type corresponds to the 'Z' suffix (150-mil SOIC). Check for obsolescence status as older Maxim Integrated products may have limited availability. Ensure programming hardware compatibility if field configuration is required.

Selection Notes

Select the DS1075Z-803 when an 80 MHz maximum frequency is required. Choose this model over the -100 variant if lower speed suffices. Verify that the 150-mil SOIC package fits the PCB layout. Consider the DS1075K evaluation board for programming setup. Ensure supply voltage remains within 4.75V to 5.25V for specified performance.

Part Context

The DS1075Z-803 belongs to the DS1075 EconOscillator/Divider family. The 'Z' suffix indicates the 150-mil SOIC package, while '-80' denotes the 80 MHz maximum frequency rating. This part allows field programming via a 1-Wire interface, enabling design flexibility without custom manufacturing orders.

Replacement Considerations

Direct replacements are not explicitly listed in public documentation. Evaluate other DS1075 variants (e.g., DS1075-60, DS1075-100) based on frequency needs. Cross-reference with newer Maxim Integrated clock generator families for modern alternatives if the DS1075 is obsolete.