SIT8208AI-2F-18E-30.000000T

Frequency Stability:	±10ppm
Current - Supply (Disable) (Max):	30mA
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):	31mA
Operating Temperature:	-40°C ~ 85°C
Absolute Pull Range (APR):	--
Series:	SiT8208
Voltage - Supply:	1.8V
Output:	LVCMOS, LVTTL
Function:	Enable/Disable
Frequency:	30MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Oscillators are circuits that are widely used in applications such as radio transmitters, digital communication systems, frequency and timing control, signal processing, and medical instruments. Oscillators are also referred as frequency controlled generators or multivibrators. This article discusses the application field and working principle of SIT8208AI-2F-18E-30.000000T.

Type of Oscillator

SIT8208AI-2F-18E-30.000000T is a double frequency oscillator chip designed and manufactured by SIT Technologies, Inc. It is a stable, low power, double frequency oscillator integrated circuit. It operates on a nominal supply voltage range of 1.5 V to 3.6 V and provides an optimal output frequency range between 0 and 30 MHz. It supports a wide range of operating frequencies like 10 Hz, 137.5 kHz, 12 MHz and 570 kHz.

Application

The SIT8208AI-2F-18E-30.000000T is widely used in various electronic devices such as portable media players, MP3 players, digital cameras, wireless communications, tablets and other handheld devices. It is suitable for applications that require a stable clock signal. It is also used in medical and industrial application such as in mass spectrometers, x-ray equipment, and other precision instruments.

Working Principle

SIT8208AI-2F-18E-30.000000T consists of an internal voltage-controlled oscillator (VCO) and a feedback divider circuit. The VCO is driven by an input voltage that can be varied from 1.5V to 3.6V owing to the operating range of the chip. VCO generates a stable clock output frequency that is the product of the input voltage and a calibration factor. This input frequency is internally divided by a programmable divider circuit and used as the chip’s feedback signal. The reference frequency and the divide-by factor of the feedback divider circuit determines the output frequency. The chip has a very low-noise oscillator core which offers very high frequency stability even in dynamic temperature ranges. The chip also offers an integrated power-down option to reduce power consumption in Idle mode.

Conclusion

SIT8208AI-2F-18E-30.000000T is a high-performance double frequency oscillator that is suitable for various applications such as digital cameras, wireless communication, portable media players and medical equipment. It uses a low-noise oscillator core to generate a stable output frequency and is capable of operating in dynamic temperature ranges. The chip also provides an integrated power-down option to reduce power consumption in idle mode.

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