SIT1602BI-21-30S-20.000000E

Frequency Stability:	±20ppm
Current - Supply (Disable) (Max):	4.3µA
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:	-40°C ~ 85°C
Absolute Pull Range (APR):	--
Series:	SiT1602B
Voltage - Supply:	3V
Output:	HCMOS, LVCMOS
Function:	Standby (Power Down)
Frequency:	20MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators - SIT1602BI-21-30S-20.000000E application field and working principle

Oscillators are electronic circuits that generate a periodic, oscillating electronic signal. They are critical components to nearly every electronic device, used in circuits ranging from the simplest radios to the most advanced computers and electronic devices. One of the most commonly used families of oscillators are the SIT1602BI series. This article will discuss the application field and working principle of the SIT1602BI-21-30S-20.000000E oscillator.The SIT1602BI-21-30S-20.000000E oscillator is a low power, low noise frequency source, developed for use in mobile communications systems. It is designed specifically for use in digital cellular base stations and supports a wide range of applications, thanks to its adjustable frequency range amounts to 20 kHz and its low current consumption. The working principle of the SIT1602BI-21-30S-20.000000E involves a combination of analog and digital components, all of which are necessary for its efficient operation. It comprises an oscillator circuit and a digital counter. The oscillator circuit produces a periodic waveform, in this case a sine wave, which is then fed to the counter which counts the number of cycles and produces a digital signal with a predetermined frequency. The basic oscillator circuit comprises a pair of active devices, usually transistors, and two passive components in the form of variable capacitors. The active devices allow current to flow through them, due to differences in voltage across them. The capacitors act as an energy storage device, absorbing and releasing energy as the active devices pass current. This in turn causes a periodic waveform to be generated, which is then fed into the counter.The counter then uses a clock signal to ‘count’ the number of cycles produced, which it can then read and output a digital signal. This signal is then “converted” into an output signal with the desired frequency. Finally, the signal is sent to a digital-to-analog (D/A) converter which then sends the signal to the antenna.In summary, the SIT1602BI-21-30S-20.000000E oscillator is designed for use in digital cellular base stations and supports a wide range of applications, thanks to its adjustable frequency range and low current consumption. It uses a combination of analog and digital components, an oscillator circuit and counter, to produce a periodic waveform in the form of a sine wave which is then counted and output a digital signal with a predetermined frequency, before finally being ‘converted’ into an output signal with the desired frequency.

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