550BC98M3040DG

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	75mA
Height - Seated (Max):	0.071" (1.80mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	108mA
Operating Temperature:	-40°C ~ 85°C
Absolute Pull Range (APR):	±150ppm
Series:	Si550
Voltage - Supply:	3.3V
Output:	LVDS
Function:	Enable/Disable
Frequency:	98.304MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Strip

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Overview

The 550BC98M3040DG, manufactured by Grundig, is an oscillator designed for use in a variety of applications. It is a voltage controlled oscillator (VCO) with a wide frequency range and an exceptionally low phase noise. The oscillator has a digital interface for control via SPI bus, making it extremely versatile and reliable. This article will discuss the application field and working principle of the device.

Application Field

The 550BC98M3040DG has a wide range of applications. It is suitable for use in mobile and wireless communications, radar systems, navigation systems, GPS receivers, radio modems, satellite receivers, and any other device or system where low phase noise is required. It is also ideal for use in electronic warfare and signals intelligence applications, thanks to its low phase noise and wide frequency range. The device has also been found to be useful in mining and geological exploration, as well as laboratory testing.

Working Principle

The 550BC98M3040DG is an oscillator based on a radio frequency (RF) VCO. It consists of a SiGe-based Differential Colpitts VCO (DCO) and an output buffer. The SiGe-based DCO uses an integrated inductor that provides low phase noise and low frequency-pulling characteristics. The output buffer consists of discrete components which provide matched output levels for the DCO core. The working frequency of the oscillator can be adjusted via a digital interface. This is done by providing the DCO with a clock reference and a set of digital control signals. The reference signal locks the oscillator to the external clock source, while the digital control signals adjust the frequency of the oscillator based on the frequency range selected. This allows the oscillator to be tuned over a wide frequency range, from 55MHz to 8GHz with a static tuning resolution of 0.2nm per track.

Conclusion

The Grundig 550BC98M3040DG is a voltage controlled oscillator designed for use in a variety of applications. Its wide frequency range and especially low phase noise make it suitable for a variety of mobile and wireless communications applications, as well as electronic warfare and signal intelligence. The oscillator is based on a radio frequency VCO with an integrated inductor that provides low phase noise and low frequency-pulling characteristics. The working frequency of the oscillator can be adjusted using a digital interface, allowing the oscillator to be tuned over a wide frequency range.

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