552CD000409DG

Function:	Enable/Disable
Current - Supply (Disable) (Max):	75mA
Package / Case:	6-SMD, No Lead
Height:	0.071" (1.80mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Current - Supply (Max):	98mA
Operating Temperature:	-40°C ~ 85°C
Frequency Stability:	±50ppm
Voltage - Supply:	3.3V
Output:	CMOS
Series:	Si552
Frequency - Output 4:	--
Frequency - Output 3:	--
Frequency - Output 2:	--
Frequency - Output 1:	32MHz, 42.5MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	--

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Introduction

Pin Configurable/Selectable Oscillators, such as the 552CD000409DG, combine the two functions of frequency selection and frequency range selection within one device. This type of oscillator is used in a variety of applications, including frequency synthesis, clock generation, radio frequency (RF) transmitters, radar systems and ultra wideband communications. This article will explain the application field and working principle of the 552CD000409DG.

Application Field

The 552CD000409DG is a pin configurable/selectable oscillator with an operating temperature range of -40°C to +85°C. It consists of an oscillator circuit, a frequency selection circuit and a control circuit, all housed within one package. This type of oscillator has a wide range of possible frequencies (from 12MHz to 75MHz) and frequency resolution (down to 0.04 MHz).The 552CD000409DG is suitable for a variety of applications, including frequency synthesis, clock generation, radio frequency (RF) transmitters, radar systems and ultra wideband communications. Its pin configurable design allows for the selection of different frequency ranges, which means it can be used for both fixed and variable frequency applications. It also allows for the selection of different output levels, from TTL to CMOS, making it suitable for a variety of signalling protocols.

Working Principle

The 552CD000409DG is based on a Pierce oscillator. This type of oscillator has a few common features, including a feedback resistor and a capacitive reactance element. In the case of the 552CD000409DG, the capacitive reactance element is a varactor diode, which is used to set the oscillation frequency.To set the frequency of the oscillator, a voltage is applied to the varactor diode which causes it to change its capacitance. This change in capacitance causes the oscillation frequency to change accordingly. This makes the Pierce oscillator an easy to use, accurate and stable solution for frequency synthesis and remote frequency selection applications.The 552CD000409DG can select from a broad range of frequencies (from 12MHz to 75MHz) and its frequency resolution is down to 0.04MHz. This allows for fine tuning of the oscillation frequency which is needed for a wide range of applications.

Conclusion

The 552CD000409DG is a pin configurable/selectable oscillator which is used in a variety of applications, including frequency synthesis, clock generation, radio frequency (RF) transmitters, radar systems and ultra wideband communications. It is based on a Pierce oscillator and it can select from a broad range of frequencies and its frequency resolution is down to 0.04MHz. This makes it an easy to use, accurate and stable oscillator for frequency synthesis and remote frequency selection applications.

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