SIT1602BC-72-18N-66.666660E

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	--
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):	4.1mA
Operating Temperature:	-20°C ~ 70°C
Absolute Pull Range (APR):	--
Series:	SiT1602B
Voltage - Supply:	1.8V
Output:	HCMOS, LVCMOS
Function:	--
Frequency:	66.66666MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators: Application Field and Working Principle

Oscillators are circuits that produce an alternating output signal with a constant amplitude and frequency. They are used in many electronic circuits, such as communications devices, radar technology, and electric power systems. One very popular type of oscillator is the SIT1602BC-72-18N-66.666660E. Here, we will discuss the application field and working principle of this device.

Application Field

SIT1602BC-72-18N-66.666660E oscillator is typically used in clocks, watches and timer circuits. It is an inexpensive, low-power signal source that is particularly well-suited for such uses because of its precise and reliable output frequency. This oscillator is also well-suited for use in a variety of other situations where a stable, steady frequency is needed, such as in voltage regulators, power supply units, audio amplifiers, and control electronics.

Working Principle

The SIT1602BC-72-18N-66.666660E oscillator uses a multivibrator circuit to generate its alternating signal. A multivibrator is a device that uses two amplifying transistors or other amplifying devices to produce an output with an alternating voltage and frequency. The output frequency is determined by the time constants of the devices used in the circuit. In the SIT1602BC-72-18N-66.666660E oscillator, the two transistors are cross-coupled and the capacitor and resistor value form a two-position RC oscillator. When power is applied, the voltage across the capacitor increases until it reaches (or exceeds) the threshold voltage of the transistors. This triggers the transistors to switch, and they alternate back and forth, constantly increasing and decreasing the voltage across the capacitor. This voltage rides on the coils of the SIT1602BC-72-18N-66.666660E oscillator which increases and decreases in amplitude as the transistors switch. This produces an alternating output signal that is fed back to the input of the circuit. This cycle of switching continues and the frequency of the output signal is determined by the values of the components connected to the transistors. The two transistors must switch at the same frequency in order for the oscillator to remain stable, and this is determined by the values of the capacitor and resistor. If the capacitor or resistor values are changed, it will change the frequency of the oscillator.

Conclusion

The SIT1602BC-72-18N-66.666660E oscillator is a popular choice for providing a steady alternating signal for a variety of applications. It is inexpensive, low-power, and reliable, making it a great choice for any application where a precise and steady frequency is required. The oscillator works by using two transistors that are cross-coupled and a capacitor and resistor combination which forms a two-position RC oscillator. The frequency of the output signal is determined by the component values connected to the transistors, and if any of them are changed, the oscillator frequency is changed as well.

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