Simple Packaged Crystal Oscillators (SPXO)
SPXO is an oscillator for watches, which uses crystal resonance to create an electrical signal with a more precise frequency and are suitable for clock signal generators.
Voltage Controlled Crystal Oscillators (VCXO)
These crystal oscillators have a variable-capacitance diode inserted into a SPXO oscillation loop, and enables the oscillation frequency to change by varying the voltage of the external power supply. The temperature characteristic of these oscillation are equivalent to those of the SPXO loop and takes advantage of the good attributes of crystal resonators.
Temperature Compensated Crystal Oscillators(TCXO)
These high-precision crystal oscillators have a built-in circuit that corrects frequency variations resulting from temperature variations of the crystal resonator. It is optimal for applications where small frequency tolerance is required across a wide temperature.
Oven Controlled crystal Oscillator(OCXO)
OCXO is a super high-precision crystal oscillator with very small frequency variations by a built-in thermostatic bath, to maintain a constant temperature of the crystal resonator. Available to the frequency reference, such as instruments and infrastructure base stations.
RTC is a high-precision crystal application product with built-in tuning-fork crystal oscillator,has an interrupt function and data provide function necessary for calendar clock function,such as year, month, day, hour, minute and second.
| Output Frequency | Nominal value of output frequency of a crystal controlled oscillator |
| Frequency Tolerance (Crystal Oscillators) | The maximum permissible deviation of the oscillator frequency from a specified nominal value. when operating under specified condition. |
| Frequency Characteristics over Temperature(Crystal Oscillators) | Deviation from the frequency at the specified reference temperature due to operation over the specified temperature range,when other conditions remain constant. |
| Frequency Stability vs. Supply Voltage | Deviation from the frequency at the specified supply voltage due to operation over the specified temperature range,when other conditions remain constant. |
| Frequency Stability vs. Load Variation | Deviation from the frequency at the specified load conditions due to changes in load impedance over the specified range, when other conditions remain constant. |
| Frequency Stability vs.AgIng | The rate of output frequency change when an oscillator is operated under a specified condition and operating time. |
| Operating Temperature Range | Temperature range over which the crystal oscillator can be operated within allowable deviation range. |
| Supply Voltage | The DC input voltage necessary for oscillator operation. |
| Current Consumption | Operating current consumption. |
| Standby Current | The current consumption, when the oscillating by the control voltage applied to the control pin of an oscillator having the output control function. |
| Start up Time | The duration from the oscillation start until it reaches the specified output amplitude after power was applied. |
| Load Condition | Types or the number(capacity)of loads that can be connected to the oscillator. |
| Output Level | Amplitude of output waveform. |
| Rise Time | The time interval required for the leading edge of a waveform to change between two defined levels. |
| Fall Time | The time interval required for the trailing edge of a waveform to change between two defined levels. |
| Symmetry | The ratio between the time, in which the output voltage is above a specified level, and time in which the output voltage is below the specified level, in percent of the duration of the full signal period. |
| Output Disable Time | Time lag between control-signal input and oscillation output, where oscillation output is on. Specified for models with output control function. |
| Output Enable Time | Time lag between control-signal input and oscillation output, with oscillation output switched off (no output load). Specified for models with output control function. |
| 3-state | The situation that the output goes to a high impedance when an oscillator stops oscillating by the standby function. |
| Phase Noise | The generic designation of the unwanted emission of energy around the nominal frequency generated by an oscillator. |
| Phase Jitter | The phenomenon when the phase of the pulse wave of the output signal of an oscillator moves back and forth in time from its ideal position. It is called jitter when the frequency fluctuations of the phase in time is over 10Hz. |
| Harmonics | Unwanted frequency component, which is higher than the desired output frequency of an oscillator. |
| Frequency Adjustment Range | The output frequency range which can be shifted by the control voltage from outside to VCXOs. |
| Frequency Control Vltage | The range of input voltage from outside to shift the frequency of VCXOs. |
IPv6 network supported
