DS4026S+WCN

Programmable Timers And Oscillators Overview

The DS4026S+WCN is a temperature-compensated crystal oscillator (TCXO) providing ±1ppm frequency stability over the -40°C to +85°C industrial range. It operates on three independent 3.3V supplies: VCC, VOSC, and VCCD. The device features an I²C interface for digital frequency tuning with a minimum pullability of ±8ppm and typical 1ppb resolution. It delivers a push-pull CMOS square wave output with symmetrical rise and fall times. Standard frequencies include 10, 12.8, 19.44, 20, 38.88, 40, and 51.84MHz.

Programmable Timers And Oscillators Feature Summary

• ±1ppm frequency accuracy over -40°C to +85°C
• Digital frequency tuning via I²C interface (±8ppm pull range)
• Low active supply current (1.5mA typical)
• Stratum 3 versions available

Programmable Timers And Oscillators Applications

• Reference clock generation
• Wireless telecom systems
• Datacom equipment
• Satellite communications (SATCOM)
• Test and measurement instruments

Programmable Timers And Oscillators Procurement Notes

Verify component status as the DS4026 series may be obsolete or discontinued. Confirm exact ordering suffixes for required temperature ranges and frequencies. Ensure compatibility with existing PCB layouts due to specific decoupling requirements for VREF, VCC, VOSC, and VCCD pins.

Programmable Timers And Oscillators Selection Notes

Select based on required operating temperature range (-40°C to +85°C for 'CN' suffix). Verify standard frequency availability against application needs. Consider Stratum 3 variants if stricter phase noise and aging specifications are required. Ensure I²C bus voltage levels match system logic.

Programmable Timers And Oscillators Part Context

The DS4026 is part of Maxim Integrated's TCXO family, designed for high-stability timing applications. It integrates a temperature sensor, DAC, and lookup table for precise compensation. The device supports both standard and fast-mode I²C communication protocols for configuration and monitoring.

Programmable Timers And Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. Consult manufacturer documentation for cross-reference information.