DS4026S+JCC

Programmable Timers And Oscillators Overview

The DS4026S+JCC is a temperature-compensated crystal oscillator (TCXO) manufactured by Analog Devices Inc./Maxim Integrated. It provides a 20.00MHz CMOS push-pull square wave output with ±1ppm frequency stability over the 0°C to +70°C industrial temperature range. The device operates on a 3.3V supply and features an I²C interface for digital frequency tuning, allowing a minimum pullability of ±8ppm with 1ppb resolution. It includes an internal temperature sensor and lookup table for compensation, ensuring a maximum frequency deviation of less than ±4.6ppm over 20 years.

Programmable Timers And Oscillators Feature Summary

• ±1ppm frequency accuracy over 0°C to +70°C
• I²C interface for digital frequency tuning (±8ppm pull range)
• CMOS push-pull output with symmetrical rise/fall times
• Internal temperature sensor with 12-bit resolution

Programmable Timers And Oscillators Applications

• Reference clock generation in wireless systems
• Telecom and datacom equipment
• Satellite communications (SATCOM)
• Test and measurement instruments

Programmable Timers And Oscillators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required temperature range (+JCC indicates 0°C to +70°C). Check for RoHS compliance status as indicated by the '+' designation. Ensure proper handling procedures are followed during installation to maintain device reliability.

Programmable Timers And Oscillators Selection Notes

Select this model when a 20MHz TCXO is required within the 0°C to +70°C operating range. Consider the DS4026S+JCN variant if operation down to -40°C is necessary. Evaluate the I²C interface requirements for system integration. Verify power supply constraints align with the 3.135V to 3.465V specification.

Programmable Timers And Oscillators Part Context

The DS4026 series offers various standard frequencies including 10, 12.8, 19.44, 20, 38.88, 40, and 51.84MHz. The '+JCC' suffix specifically denotes the 20.00MHz output frequency combined with the commercial temperature range package. Stratum 3 versions are also available for telecommunications applications requiring stricter stability specifications.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements include other DS4026 variants with different frequencies or temperature ranges. For -40°C to +85°C operation, use DS4026S+JCN. For different frequencies, refer to the full ordering list such as DS4026S+ACC (10MHz) or DS4026S+QCC (51.84MHz). Ensure pin compatibility and electrical specifications match before substitution.