DS1075Z-166

Overview

The DS1075Z-166 is a fixed-frequency oscillator from the EconOscillator family, manufactured by Analog Devices Inc./Maxim Integrated. It provides dual outputs with a maximum frequency of 166 MHz. The device integrates user-programmable on-chip dividers (range 2–513) and prescalers (divide-by-1, 2, or 4), allowing flexible clock generation without external components. It operates on a single 5V supply with an initial tolerance of ±0.5% and ±1% variation over temperature and voltage. Configuration is managed via a 1-Wire interface using nonvolatile memory to store register settings.

Feature Summary

• Dual fixed-frequency outputs with programmable division ratios
• On-chip programmable prescaler (1, 2, 4) and divider (2–513)
• Single 5V supply operation with ±0.5% initial frequency tolerance
• 1-Wire programming interface for nonvolatile register storage

Applications

• Microcontroller system clock generation
• Memory subsystem timing
• Communication interface synchronization

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type matches design requirements, as the Z suffix indicates SOIC packaging. Check current availability status, as this specific frequency variant may have limited stock or end-of-life implications compared to standard factory configurations.

Selection Notes

Select the DS1075Z-166 when a precise 166 MHz clock is required without external crystals. Ensure the application supports the 1-Wire programming protocol for configuration if custom divider values are needed. Verify that the load capacitance requirements (typically 15 pF) align with the connected circuitry to maintain signal integrity.

Part Context

This part belongs to the DS1075 EconOscillator series, which replaces discrete crystal oscillators with integrated silicon solutions. The 'Z' suffix denotes the 8-pin SOIC package option, while the '-166' specifies the factory-configured output frequency. It serves as a drop-in replacement for traditional crystal oscillator modules in space-constrained designs.

Replacement Considerations

Direct replacements include other DS1075 variants with different frequencies (e.g., DS1075-100, DS1075-80). For pin-compatible alternatives, consider the DS1077 series, though it offers dual outputs with slightly different programming interfaces. Verify electrical characteristics match before substitution.