SIT1602BC-32-28E-77.760000Y

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	4.2mA
Height - Seated (Max):	0.032" (0.80mm)
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):	4.5mA
Operating Temperature:	-20°C ~ 70°C
Absolute Pull Range (APR):	--
Series:	SiT1602B
Voltage - Supply:	2.8V
Output:	HCMOS, LVCMOS
Function:	Enable/Disable
Frequency:	77.76MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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OscillatorsSIT1602BC-32-28E-77.760000Y is a type of oscillator. Oscillators are electronic components capable of generating an electronic signal with a specific frequency. Oscillators are widely used in many electronic devices as well as entire systems requiring the generation and stability of frequency. Oscillators produce electronic signals with precisely determined frequency and stability, usually higher than the capabilities of manual tuning.In the context of SIT1602BC-32-28E-77.760000Y, it is a Si-Diode temperature compensated Crystal Oscillator (TCXO). It provides a frequency output of 77.760000 MHz. It offers high long-term frequency stability over a wide range of operating temperatures, and the frequency temperature coefficient is negative. The control temperature and frequency stability of SIT1602BC-32-28E-77.760000Y are achieved by the integration of two components: an electronic circuit and a quartz crystal. The crystal comprises of electrodes of quartz, cut according to a specific angle and dimensions. A direct current applied to the crystal vibrates mechanically due to the piezoelectric effect, and the resonant frequency is determined by the mass, shape, size, angle, and the surrounding medium. The electronic circuit amplifies the vibration of the quartz crystal, producing a steady electric signal with a precise and stable frequency output. The electronic circuit consists of a balanced amplifier circuit, a temperature compensation circuit, and a voltage controlling circuit. The temperature compensation circuit is composed of a tantalum capacitor connected to an NPN transistor and temperature dependent resistors. The voltage controlling circuit controls the drift of the signal frequency by controlling the quartz crystal’s fundamental resonant frequency using an additional capacitor connected to the crystal.The main application of SIT1602BC-32-28E-77.760000Y is in industrial-grade products, like drones, GPS, game consoles and personal communication devices. It is also used in medical-grade applications, since it provides frequency precision with temperature stability. In addition, it is used for the development and prototyping of products, as it allows for the manufacture of products with excellent frequency stability. In general, SIT1602BC-32-28E-77.760000Y provides an accurate frequency output with maintainable stability over a wide range of operating temperature. Its key features, such as temperature compensation and voltage control circuitry, optimize the crystal’s frequency output and stability of frequency. It is a reliable, cost-effective oscillator with wide application in the industrial and healthcare sectors.

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