ASTMLPA-125.000MHZ-LJ-E-T

Frequency Stability:	±20ppm
Current - Supply (Disable) (Max):	4.2mA
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.079" L x 0.063" W (2.00mm x 1.60mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	7.5mA
Operating Temperature:	-40°C ~ 85°C
Series:	ASTMLP
Voltage - Supply:	2.25 V ~ 3.63 V
Output:	LVCMOS
Function:	Enable/Disable
Frequency:	125MHz
Type:	MEMS (Silicon)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to Oscillators

Oscillators are electronic circuits that are designed to produce repetitive signals at a predetermined frequency and their associated output is essentially a sinusoidal waveform. Oscillators can be classified according to their mode of operation into two general types, digital and analog, or electromechanical. The digital type circuits can be either based on logic circuits or microprocessors with certain software routines. The analog type oscillators usually utilizes tuned circuits, such as LC networks, or RC networks to generate sinusoidal outputs.One example of a commonly used digital oscillator is the ASTMLPA-125.000MHZ-LJ-E-T, which is designed to generate a precise signal at 125.000MHz with an accuracy of 0.005%. This oscillator has a supply voltage range of 3.4–5 VDC with a loop bandwidth of 1.8kHz and a temperature drift of 20ppm/°C. Its output frequency can be adjusted ±1% via an external voltage control. This oscillator also has an additional external synchronization pin for synchronization with other oscillators.

Application Field and Working Principle of ASTMLPA-125.000MHZ-LJ-E-T

The ASTMLPA-125.000MHZ-LJ-E-T oscillator is most often used in high precision applications where stability and reliability are essential. It has a wide variety of uses, including as a local oscillator in high frequency radio and television receivers, as a signal source for computer networks, as an input source for frequency synthesisers, and as a reference clock for timing and control circuits.The ASTMLPA-125.000MHZ-LJ-E-T uses a phase-locked loop (PLL) frequency control technology to generate the signal output. The PLL measures and compares the output frequency to the input frequency, and automatically adjusts the phase and frequency of the output signal to match the input signal. This ensures that the signal output is always accurate and stable, which is essential for many precision applications.The oscillator also includes a temperature compensating circuit which helps keep the output frequency constant over a wide temperature range. This is especially important for applications that require a high degree of temperature stability, such as radio and television transmitters.

Conclusion

The ASTMLPA-125.000MHZ-LJ-E-T oscillator is an ideal choice for high precision applications that require a stable and reliable signal source. Its Phase-Locked Loop technology ensures that the output frequency is always accurate and stable, and its temperature compensating circuit helps keep its output frequency constant over a wide temperature range.

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