DS4026S+ECN

Programmable Timers And Oscillators Overview

The DS4026S+ECN is a temperature-compensated crystal oscillator (TCXO) manufactured by Analog Devices Inc./Maxim Integrated. It provides a 16.8MHz CMOS push-pull square wave output with ±1ppm frequency stability over the -40°C to +85°C industrial temperature range. The device operates on a 3.3V supply, drawing typical active currents of 2.5mA for VCC, 4mA for VOSC, and 3mA for VCCD. It features an I2C interface enabling digital frequency tuning with a minimum pullability of ±8ppm and approximately 1ppb resolution.

Programmable Timers And Oscillators Feature Summary

• Factory calibrated for ±1ppm frequency accuracy across -40°C to +85°C
• I2C interface supports digital frequency tuning with ±8ppm pullability
• Low power consumption: 2.5mA (VCC), 4mA (VOSC), 3mA (VCCD)
• Stratum 3 compliant versions available with tighter stability specifications

Programmable Timers And Oscillators Applications

• Reference clock generation in wireless systems
• Telecom and datacom equipment timing
• Satellite communication (SATCOM) applications
• Test and measurement instrumentation

Programmable Timers And Oscillators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead-free packaging requirements prior to procurement. Check current availability as manufacturing lifecycles may affect stock levels. Ensure proper handling procedures are followed during storage and assembly.

Programmable Timers And Oscillators Selection Notes

Select this model when 16.8MHz output is required with ±1ppm stability over industrial temperatures. Consider Stratum 3 variants if stricter phase noise or aging specifications are needed. Verify I2C bus compatibility with host controllers. Ensure adequate decoupling capacitors are placed near VCC, VOSC, and VREF pins for optimal performance.

Programmable Timers And Oscillators Part Context

This TCXO belongs to the DS4026 family offering frequencies from 10MHz to 51.84MHz. The 'ECN' suffix indicates 16.8MHz output with -40°C to +85°C operating range in 16-pin SO package. The '+' denotes lead-free/RoHS-compliant packaging. Alternative frequencies include 10, 12.8, 19.44, 20, 38.88, 40, and 51.84MHz options within the same package style.

Programmable Timers And Oscillators Replacement Considerations

No publicly confirmed substitute part numbers are documented in the provided datasheet. Users should verify pin compatibility and electrical specifications when considering alternative oscillators from other manufacturers.