晶体震荡器

Epson provides a large variety of different Simple Packaged Crystal Oscillators & SAW Oscillators with various sizes, frequencies, OE/ST functions, and temperature ranges for every application. SPXO delivers excellent frequency stability without the necessity of temperature compensation and frequency control. Housing crystal units that consist of AT or BT cut fundamental or overtone and their oscillation circuit in the same package, our crystal clock oscillators are designed and manufactured to provide a stable output of signals when the set voltage is applied. Generally, when customers buy crystal units and use them in their oscillation circuits, they first need to provide analog settings prior to the installation. These include the settings of load capacitance, oscillation allowance, and variations in characteristics due to temperature changes. With Epson's crystal clock oscillators, these settings are already provided by us, so their output signals can directly control TTL and CMOS ICs. This shortens design processes for customers and contributes to standardizing parts to be used. Our crystal clock oscillators also feature a VCXO function and a Try-state function. The VCXO function enables control of output frequencies with external control voltage, whereas the output enable feature maintains the output terminals at high impedance levels by outputting signals with control signals while the power is supplied

Epson provides a large variety of different Simple Packaged Crystal Oscillators & SAW Oscillators with various sizes, frequencies, OE/ST functions, and temperature ranges for every application. SPXO delivers excellent frequency stability without the necessity of temperature compensation and frequency control. Housing crystal units that consist of AT or BT cut fundamental or overtone and their oscillation circuit in the same package, our crystal clock oscillators are designed and manufactured to provide a stable output of signals when the set voltage is applied. Generally, when customers buy crystal units and use them in their oscillation circuits, they first need to provide analog settings prior to the installation. These include the settings of load capacitance, oscillation allowance, and variations in characteristics due to temperature changes. With Epson's crystal clock oscillators, these settings are already provided by us, so their output signals can directly control TTL and CMOS ICs. This shortens design processes for customers and contributes to standardizing parts to be used. Our crystal clock oscillators also feature a VCXO function and a Try-state function. The VCXO function enables control of output frequencies with external control voltage, whereas the output enable feature maintains the output terminals at high impedance levels by outputting signals with control signals while the power is supplied

This indicates the crystal oscillators that include a PLL circuit and can be programmed to output a desired frequency. Being able to program for any output frequency facilitates short-lead-time, small-lot production. A special programming tool is necessary to write frequency data to blank crystal oscillators. Epson's programmable crystal oscillators are the SG-8000 Series, and are programmed by the SG-Writer programming tool.

This is a crystal oscillator that houses a SAW resonator chip and IC chip including crystal oscillation circuit in a package. Epson offers SAW oscillators under the EG series. In particular, the EG-2121 and EG-2102 have improved frequency-temperature characteristics to one-half their previous levels.