SIT9005ACL1G-33SE

Frequency Stability (Total):	--
Current - Supply (Disable) (Max):	4.3µA
Height:	0.030" (0.76mm)
Size / Dimension:	0.098" L x 0.079" W (2.50mm x 2.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	6.5mA
Spread Spectrum Bandwidth:	-1.29%, Down Spread
Operating Temperature:	-20°C ~ 70°C
Series:	SIT9005
Frequency Stability:	±20ppm, ±25ppm, ±50ppm
Voltage - Supply:	3.3V
Output:	LVCMOS
Function:	Standby
Available Frequency Range:	1MHz ~ 141MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	SSXO
Base Resonator:	MEMS
Part Status:	Active

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Programmable Oscillators: SIT9005ACL1G-33SE Application Field and Working Principle

Programmable oscillators are components used to create an oscillating signal with a frequency that can be electronically adjusted. These devices find wide application in electronic and communication fields, such as frequency synthesizers, switch-mode power supplies, clock sources, and more. On this page, we will provide detailed information about the application field and working principle of a specific programmable oscillator - the SIT9005ACL1G-33SE.

Features of SIT9005ACL1G-33SE

The SIT9005ACL1G-33SE is a programmable oscillator that combines low cost with flexibility and excellent performance. This device is intended for Pulse Width Modulated (PWM) applications, such as motor control, power monitoring, etc. The range of the SIT9005ACL1G-33SE is 40KHz to 1MHz with a frequency tolerance of +/- 20ppm. This programmable oscillator has an output resistance of 55Ω, and an output voltage of 5V, making it suitable for higher voltage applications.

Application Field of SIT9005ACL1G-33SE

The SIT9005ACL1G-33SE programmable oscillator is designed for a wide variety of applications. It is especially suitable for designing frequency synthesizers and clock sources in radio transceivers, base stations, and other RF communication systems. Possible applications also include switch-mode power supplies, audio processing systems, pulse width modulation systems, and more.

Working Principle of SIT9005ACL1G-33SE

The SIT9005ACL1G-33SE is a programmable oscillator device based on the RC phase-locked loop (PLL) architecture. This means it can generate an output signal with a frequency that is electronically adjustable. It works by mixing two signals in a PLL circuit and then detecting the phase difference between them. Then, a voltage is applied to a capacitor to adjust the frequency until the two signals are in lock phase. The PLL component of the oscillator contains two main components, which are the VCO (Voltage-Controlled Oscillator) and the Charge Pump. The VCO component is responsible for generating the output signal, while the Charge Pump is responsible for adjusting the frequency according to the control voltage applied to it. The output signal is then sent through an amplifier component to boost the output power. The SIT9005ACL1G-33SE also features a frequency select pin that can be used to program the oscillator to generate a specific output frequency. This pin is used to select the frequency divider value that is used to divide the PLL output frequency. Depending on the selected frequency divider value, the PLL output frequency can be modified.

Conclusion

The SIT9005ACL1G-33SE is a programmable oscillator device that combines low cost with flexibility and excellent performance. This oscillator is suitable for applications such as frequency synthesizers, switch-mode power supplies, clock sources, motor control, and more. It works via an RC phase-locked loop architecture and contains components such as VCO, Charge Pump and an amplifier. In addition, the frequency select pin allows for precise frequency adjustment.

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