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:	2.8V
Output:	HCMOS, LVCMOS
Function:	Standby (Power Down)
Frequency:	4MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators

SIT1602BI-21-28S-4.000000E

Application Field and Working Principle

Oscillators are widely used in the modern electronic circuits, and SIT1602BI-21-28S-4.000000E is one of the most popular oscillators among them. It’s mainly applied in the medical, aerospace, automotive, communications and automation industries for its stability and accuracy. In the oscillator stage circuit, SIT1602BI-21-28S-4.000000E is suitable for both high-frequency and low-frequency applications (including PWM and other frequency control operating modes). It uses an isolated gate FET that can be set with high accuracy. It’s mainly used for controlling the switch level to regulate the operating frequency which can save power consumption. Moreover, the design of the circuit enables the high frequency oscillation and excellent frequency stability which reduces the requirements for the precision components used in the oscillator stage. The main features of SIT1602BI-21-28S-4.000000E include: a wide input voltage range(from 5V to 36V); an extremely low power consumption; a high output current (up to 900mA); a linear operation which can reduce EMI and other transient interference; a low standby power which is under 30 milliwatts; and an adjustable output frequency (from 1Hz to 4.000MHz). What’s more, it also features a low quiescent current and low distortion. SIT1602BI-21-28S-4.000000E works by establishing a sensing circuit to detect the switching level of its input signal. The sensing circuit then transmits the results to an operational amplifier, which amplifies the signal and feeds it back to the switches’ control, allowing for a fast and reliable frequency switching from a low to a high frequency. In order to maintain the desired output frequency, the frequency selection circuit will automatically adjust the output frequency based on the detected input signal. Thus, the outputting frequency will remain constant. The advanced design of SIT1602BI-21-28S-4.000000E makes it one of the most efficient and accurate oscillators. Its excellent features provide an ideal solution for high precision, low power, high reliability frequency control applications.

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