SIT1602BC-31-30E-74.250000Y

Frequency Stability:	±20ppm
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:	3V
Output:	HCMOS, LVCMOS
Function:	Enable/Disable
Frequency:	74.25MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators: SIT1602BC-31-30E-74.250000Y

Oscillators are a type of electronic circuit that facilitates repetitively switching between power supply and active and inactive states. This is done by introducing a sinusoidal waveform to the oscillator, thereby creating an electrical circuit that flips back and forth between the active and inactive states. By controlling the frequency and the amplitude of the waveform, the electrical current produced by the oscillator will vary in an expected pattern.This type of oscillator is suitable for any application requiring both intermittent and continuous electrical signal fluctuation. The oscillators are typically used to generate periodic pulses or signals that can be used in a variety of tasks ranging from time keeping, to communication, to power management.The SIT1602BC-31-30E-74.250000Y is an oscillator designed by Silicon Laboratories Inc. It features a low jitter and low voltage operation, along with a fast settling time. This wide range voltage oscillator operates in temperatures ranging from -40 to +85’C. The device is designed to meet the requirements of various oscillator applications.The SIT1602BC-31-30E-74.250000Y oscillator works off a single supply. A 0–3.3V variable voltage supply is connected to the device to supply the reference voltage. This is then transformed to a 160 MHz input frequency. The oscillator then produces an output frequency from < 0.1kHz to > 30MHz, based on the voltage divider ratio. It also features a spread spectrum control (SSC) adjustment range of +/- 5%.This oscillator also features an on-board temperature compensation. The combination of the external temperature sensors, waveform control and oscillator design allow for temperature and frequency compensation to stay within ±2.5ppm (Parts Per Million) of the ideal output frequency. The oscillator is also designed with a wide supply range, which eliminates the need of multiple devices to cover the different voltage levels.The control circuit within the SIT1602BC-31-30E-74.250000Y is designed around an open collector positive transistor on the output stage and an NPN input transistor for the clock generation. The NPN bipolar transistor will be biased by a resistive divider between the Vref output and the GND. The reference voltage is then amplified by a current source and regulated internally by the PNP transistor circuit. This generates a square wave signal with very low jitter and distortion.The open collector positive transistor is designed to drive the output stage with a low impedance. It also features an on-board frequency ratio adjustment. This allows users to select a varactor element suitable for the application in order to adjust the frequency ratio with accuracy.Overall, the SIT1602BC-31-30E-74.250000Y is an ideal oscillator for any application that requires both intermittent and continuous electrical signal fluctuation. The device has a wide range of features, such as a low jitter and low voltage operation, temperature compensation, wide supply range, among others. It allows users to easily adjust the frequency ratio and find the right solution for any application.

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