353NB5I388R

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.055" (1.40mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	25mA
Operating Temperature:	-40°C ~ 85°C
Series:	353
Voltage - Supply:	2.5V
Output:	HCMOS
Function:	Enable/Disable
Frequency:	38.88MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators - 353NB5I388R Application Field and Working Principle

The oscillator is an integrally important component in the study of electrical engineering, particularly for its role in controlling and modulating electrical signals. Seen as one of the building blocks of electronic systems, its importance to applications and circuit construction cannot be overstated.Within this context, one example of an oscillator can be found in the form of the 353NB5I388R component. Developed by a number of different manufacturers, it is a multipurpose oscillator IC that is particularly effective when used in GPS, WLAN, Zigbee and Bluetooth applications.Every particular oscillator adheres to a specific design and operating principle, and this particular device is no exception. Employing a single-chip solution of differential input topologies, the 353NB5I388R includes two main sections-a voltage-controlled oscillator (VCO) and a digital phase-locked loop (PLL). The unified design of the two components - the VCO and PLL - allow for a streamlined approach to frequency synthesis, and robust operation of the oscillator.

VCO

The VCO, short for voltage-controlled oscillator, is the first component of the353NB5I388R oscillator. This particular component is designed to generate an output voltage that is dependent upon external voltage control parameters. This means that its frequency can be changed using a different voltage, allowing for greater accuracy and flexibility of the oscillator.The VCO is composed of four main components: an amplifier, a phase comparator, an LC tank circuit, and an integrating circuit. The amplifier - usually a transconductance amplifier - amplifies the input signal and applies it to the phase comparator, which is then compared to the LC tank circuit. The output of the phase comparator is then integrated and sent to the LC tank circuit, which produces the output oscillation.

PLL

The PLL, short for Phase-Locked Loop, is the second component of the 353NB5I388R oscillator. It acts as a means of controlling the oscillator’s frequency by keeping it “locked” within a specific range. As the name implies, the PLL utilizes a number of feedback loops to accomplish this, with the two main components - the feedback loop and the oscillator - generating a steady and consistent frequency output.Within the PLL, the oscillator is comprised of two main elements- the phase detector and the low-pass filter (LPF). The phase detector, through its input signals, calculates the phase difference between the input and output signals. The difference between these signals is then sent to the LPF, which produces the output of the PLL. From here, the output frequency is then adjusted and regulated to the desired range.

Conclusion

All in all, the 353NB5I388R oscillator is an important component that has a number of practical applications, particularly in GPS, WLAN, Zigbee and Bluetooth applications. It has a unique design that includes both a voltage-controlled oscillator (VCO) and a digital phase-locked loop (PLL), allowing for a streamlined approach to frequency synthesis and robust operation of the oscillator. With these features, the 353NB5I388R is effective in the handling, control and modulation of electrical signals, as is expected of all oscillators.

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