CWX813-040.0M

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.051" (1.30mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	30mA
Operating Temperature:	-20°C ~ 70°C
Series:	CWX813
Voltage - Supply:	3.3V
Output:	LVCMOS
Function:	Enable/Disable
Frequency:	40MHz
Type:	XO (Standard)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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CWX813-040.0M Oscillators
CWX813-040.0M is a precision oscillator designed for applications that require extremely precise frequency stability. It is part of a family of oscillators that provide superior performance compared to conventional crystal oscillators. The oscillator is based on a highly reliable quartz crystal resonator and utilizes an advanced phase-locked loop (PLL) architecture to achieve superior performance.The CWX813-040.0M oscillator is capable of achieving extremely precise frequency stability over extended temperature ranges. It is able to accurately and predictably maintain frequency accuracy over a wide temperature range. The oscillator can also operate within a wide frequency range (10MHz to 500MHz) and is capable of providing high-speed output with 50ps rise time (20MHz-400MHz). These features make it ideal for use in precision timing applications such as cellular phones, satellite communication equipment, instrumentation, and microwave applications.The working principle of the CWX813-040.0M oscillator is based on the concept of synchronizing the output of the quartz crystal resonator to the frequency of the external reference clock. The reference clock is typically designed to be a very stable source, such as a quartz crystal oscillator or a temperature‑compensated crystal oscillator (TCXO). The quartz crystal resonator provides a precision frequency signal to the PLL circuit, which synchronizes the output signal of the oscillator to that of the reference clock.The PLL circuit uses the output of the quartz crystal resonator to generate an output clock signal that is synchronized to the reference clock. This synchronizing process is achieved by a process known as frequency locking, which ensures that the output signal is completely locked to the frequency of the reference clock. The PLL circuit is also able to select the most stable frequency from a number of frequencies in the reference clock\'s range.The precision frequency that the CWX813-040.0M oscillator produces is determined by the characteristics of the quartz crystal resonator and the accuracy of the PLL circuit. The quartz crystal resonator is typically chosen for its temperature stability, low power consumption, and high frequency accuracy. Common types of these crystals include AT-cut, IT-cut, and SC‑cut crystals.In order to maintain accuracy, the PLL circuit must also be designed with a high level of precision. It must be stable over temperature and timescale and must be capable of accurately tracking even the smallest changes in the input signal. The PLL circuit must also be designed with a wide range of lock frequency ranges to ensure that the output signal remains locked to the reference clock.Overall, the CWX813-040.0M oscillator is an extremely precise oscillator that is capable of achieving highly accurate performance over extended temperature ranges. It is highly reliable and is ideal for use in precision timing applications. The oscillator’s advanced PLL circuit and precision crystal resonator ensure that the output signal remains locked to the reference clock, providing superior performance and accuracy compared to conventional crystal oscillators.

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