SIT1602BC-21-28N-74.175824E

Frequency Stability:	±20ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	4.5mA
Operating Temperature:	-20°C ~ 70°C
Absolute Pull Range (APR):	--
Series:	SiT1602B
Voltage - Supply:	2.8V
Output:	HCMOS, LVCMOS
Function:	--
Frequency:	74.175824MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators

An oscillator is a circuit whose output cyclically oscillates between two levels of voltage and current. It can be used to generate a periodic signal of various types, like electrical, electronic, acoustic, optical, and even mechanical signals. The device can also be used as an active filter, which is able to attenuate the amplitude of an input signal. Oscillators have a wide array of applications in our daily life, and one specific type of oscillator is SIT1602BC-21-28N-74.175824E, which will be described in the following sections.

Application Field of SIT1602BC-21-28N-74.175824E

The SIT1602BC-21-28N-74.175824E oscillator is mainly used in the fields of radiofrequency and communication devices. This oscillator is also used to drive many analog-interface components, such as a digital-to-analog converter, an RF frequency synthesizer, a baseband amplifier, or a digital isolator. Furthermore, the oscillator can be employed to generate an analog audio signal or a digital data transmission signal.

Working Principle of SIT1602BC-21-28N-74.175824E

The SIT1602BC-21-28N-74.175824E oscillator uses a temperature-compensated quartz crystal oscillator (TCXO) as its reference source, and an analog phase-locked loop (PLL) synthesizer to generate signals. The combination of these two components helps to produce an output frequency that is perfectly uniform and which can be adjusted by changing the resistor and capacitor values. The main components used in the oscillator are a varactor, two series crystal resonators, and an amplifying transistor. The varactor helps to vary the capacitance value of the crystal resonator, so the oscillator can be adjusted to produce higher or lower frequencies. The two series resonators filter and amplify the signal, while the amplifying transistor provides additional gain and helps to stabilize the output signal. In addition, the oscillator uses a precision frequency control, which helps to compensate for any variations in the oscillator’s output frequency caused by temperature or other external factors. This precision control is achieved by using a dual-gate MOSFET, which is adjusted via the external resistor and capacitor control lines.

Conclusion

The SIT1602BC-21-28N-74.175824E oscillator is a highly precise and reliable device for generating a wide range of electrical, electronic, acoustic, optical, and even mechanical signals. It is mainly used in the fields of radiofrequency and communication devices, and is capable of producing perfectly uniform output frequencies which can be adjusted by changing the values of external resistors and capacitors. Furthermore, the oscillator uses a precision frequency control which helps to compensate for any variations in the oscillator\'s output frequency caused by temperature or other external factors.

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