This digitally tunable TCXO employs proprietary design and calibration techniques that negate the effects of electromechanical stress, thermal variations, and frequency perturbations (also known as "activity dips"), which can be excited in all crystal elements as they operate over temperature. To meet the expected accuracy performance specifications, the system also uses DSP-designed components, which are individually programmed to the specific crystal's element over temperature, voltage, and specific signal quality. The resulting digital design is highly robust and provides this unmatched ±1.0ppm over the entire temperature range for more than a decade.
Maxim Introduces New Digital TCXO
Maxim DS4026
Maxim Integrated Products introduces the DS4026, a digitally controlled Temperature Compensated Crystal Oscillator (DC-TCXO) with unprecedented accuracy among TCXOs. The DS4026 provides frequency accuracy and stability better than ±1.0ppm over an extremely wide operating temperature range (-40°C to +85°C). Over a 10-year operational life, the device is accurate to better than ±4.6ppm and provides excellent phase noise performance, with characteristics of -140dBc/Hz at a 1kHz offset. Other TCXOs can make neither this accuracy nor longevity claim.
This digitally tunable TCXO employs proprietary design and calibration techniques that negate the effects of electromechanical stress, thermal variations, and frequency perturbations (also known as "activity dips"), which can be excited in all crystal elements as they operate over temperature. To meet the expected accuracy performance specifications, the system also uses DSP-designed components, which are individually programmed to the specific crystal's element over temperature, voltage, and specific signal quality. The resulting digital design is highly robust and provides this unmatched ±1.0ppm over the entire temperature range for more than a decade.
This digitally tunable TCXO employs proprietary design and calibration techniques that negate the effects of electromechanical stress, thermal variations, and frequency perturbations (also known as "activity dips"), which can be excited in all crystal elements as they operate over temperature. To meet the expected accuracy performance specifications, the system also uses DSP-designed components, which are individually programmed to the specific crystal's element over temperature, voltage, and specific signal quality. The resulting digital design is highly robust and provides this unmatched ±1.0ppm over the entire temperature range for more than a decade.
