ASFLM1-33.333MHZ-C

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	1µA
Height - Seated (Max):	0.035" (0.90mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	9mA
Operating Temperature:	0°C ~ 70°C
Series:	Pure Silicon™ ASFLM
Voltage - Supply:	3V
Output:	LVCMOS
Function:	Standby (Power Down)
Frequency:	33.333MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tube

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Introduction

Oscillators are broadly classified as electronic circuits which generate electrical or mechanical oscillations, in an orderly fashion with a repeatable pattern. Oscillators commonly rely on an external source of power to provide energy needed to kick-start oscillations. One such class of oscillators designed for automotive use is the ASFLM1-33.333MHZ-C oscillator.

Application Field

The ASFLM1-33.333MHZ-C oscillator is widely used in the automotive industry, in which its applications include fuel injectors, airbags, and antilock braking systems for cars. It can also be used for other applications in which a long-term, reliable, and accurate time base is required, such as in air traffic control, medical monitoring, and telecommunications.

Working Principle

The ASFLM1-33.333MHZ-C oscillator works on the principle of forced steady-state oscillations, or free-running, in which a combination of mechanical and electrical components produce alternating electric signals with repeatable patterns. At the core, the ASFLM1-33.333MHZ-C oscillator consists of an oscillator coil wound around a ferrite core, and placed on a metal base plate. This assembly is attached to an interconnected set of capacitors and resistors, which tune and shape the oscillator’s output frequency. The oscillator coil is energized by an external energy source, like a battery, switching circuits, and other types of energy sources. This influx of energy causes charges to move around the oscillator circuit. The oscillator coil works in cooperation with the ferrite core which is the transistor’s magnet and increases the oscillator’s frequency as it approaches its highest point of energy. As the oscillator coil begins to discharge energy it creates an electromagnetic field that is picked up by the capacitor and resistors of the oscillator, creating a repeating waveform. This repeated waveform is amplified and sent out as the oscillator’s output signal.

Conclusion

The ASFLM1-33.333MHZ-C oscillator is a reliable and accurate electronic oscillator which can be used in a variety of automotive and other applications where a steady-state time base is essential. Its working principle relies on the repeating patterns created by a combination of mechanical and electronic components, which work in cooperation to produce the oscillator’s output signal. As such, it is a key component in many different industries, with its accurate and reliable performance helping to ensure the smooth operation of many different systems and machines.

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