EP2600TS-40.000M Ecliptek, EP2600TS-40.000M Datasheet - Page 4

• Manufacturer Part Number: EP2600TS-40.000M
• Description: Programmable Oscillators 40MHz 100ppm -20C +70C
• Manufacturer: Ecliptek

Specifications of EP2600TS-40.000M

• Product Category: Programmable Oscillators
• Rohs: yes

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What is oscillator aging and what are the aging specifications for this product series?
Aging is the systematic change in frequency with time due to internal changes in the crystal and/or oscillator.
Aging is often expressed as a maximum value in parts per million per year [ppm/year]. The rate of aging is
logarithmic in nature. The following factors effect oscillator aging: adsorption and desorption of contamination on
the surfaces of the quartz, stress relief of the mounting and bonding structures, material outgassing, and seal
integrity. The oscillator aging specification is listed on the datasheet.
What are period jitter characteristics for this product series?
Period Jitter is a time domain measurement and is specified in picoseconds (pSec) as a maximum value. Ecliptek
uses a proprietary design, exclusive processing methods and a unique ASIC output driver circuit enabling this
product series to have low period jitter. The one sigma and absolute jitter parameter can be found on the
datasheet.
What is duty cycle and what is the duty cycle specification for this product series?
Duty cycle is the measure of output waveform uniformity. This term, also referred to as symmetry, is a
measurement of the time that the output waveform is in a logic high state, expressed as a percentage (%) of the
clock period. This parameter is measured at a specified voltage threshold or at a percentage of the output
waveform amplitude. See the datasheet for measurement thresholds and load conditions.
Is start-up time specified for this product series?
As shown in the figure below, start-up time is defined as the time (t
specified V
high level and the output is within the specified frequency tolerance.
In order to ensure proper start-up, the power supply start-up should have an exponential curve typical of a
capacitive charge of a linear voltage ramp. The maximum start-up time specification can be found on the
datasheet.
EP26 TEN10-005-097 Rev A
IH
260°C Reflow
Shock and Vibration
value to the time (t
1
) the oscillator output signal amplitude reaches its steady state V
Figure: Oscillator Start-up Timing Diagram
0
) from when the power supply reaches its
Ecliptek Frequently Asked Questions
OH
output logic
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