Output:	LVCMOS, LVPECL
Current - Supply (Disable) (Max):	44mA
Package / Case:	20-VFQFN Exposed Pad
Height:	0.035" (0.90mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Current - Supply (Max):	--
Operating Temperature:	-20°C ~ 70°C
Frequency Stability:	±50ppm
Voltage - Supply:	2.25 V ~ 3.6 V
Series:	DSC400
Function:	Enable/Disable
Frequency - Output 2:	--
Frequency - Output 1:	--
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tube

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DSC400-1122Q0036KE1 Pin Configurable/Selectable Oscillators

Pin configurable/selectable oscillators (PCO/SO) are highly integrated devices, combining frequency control and a voltage controllable crystal oscillator in a single package. These oscillators are particularly useful for applications which require frequency control, but without the same cost and complexity of a programmable oscillator. The DSC400-1122Q0036KE1 is a popular PCO/SO solution on the market today.

Application Field

The DSC400-1122Q0036KE1 PCO/SO is well-suited for a wide variety of applications. It is particularly useful for applications that need high frequency control in a cost-effective manner. The oscillator can be used in a wide variety of applications, such as frequency sources for radio systems, frequency adjusters for precision measuring instruments, clock generators for FPGA/ASIC/DSPs, high precision atomic clock sources, radio transmission systems, and many more. The DSC400-1122Q0036KE1 is versatile in terms of can operate in either open loop or closed loop mode, depending on the application. In open loop mode, the device is able to maintain a precise frequency without any external control. In closed loop mode, the device can synch with external signals or a reference oscillator, allowing it to operate with precise frequency control.

Working Principle

The DSC400-1122Q0036KE1 PCO/SO uses two main components for its working: a LC oscillator and a crystal oscillator. The LC oscillator is a variable frequency oscillator which allows for precisely adjusted frequency output from the device. The LC oscillator is tunable over a wide range of frequencies, from a few kilohertz to several hundred megahertz. The crystal oscillator is used to provide a precise reference frequency to the LC oscillator. The frequency of the crystal oscillator is highly stable and has little to no frequency drift over time. The crystal oscillator supplies a fixed reference frequency on the input of the LC oscillator. The LC oscillator then adjusts its output frequency according to the reference frequency, resulting in a highly accurate, stable frequency output. The DSC400-1122Q0036KE1 also features a built-in voltage-controlled crystal oscillator (VCXO) which allows the user to precisely adjust the output frequency. This feature allows for fine-grained frequency adjustments over a wide range of frequencies in order to further adjust the frequency output.

Conclusion

The DSC400-1122Q0036KE1 PCO/SO is an ideal solution for applications requiring precise frequency control and/or frequency-adjustability in a cost-effective manner. The device consists of two components – a LC oscillator and a crystal oscillator – and can operate in either open loop or closed loop mode, depending on the application. Additionally, the DSC400-1122Q0036KE1 features a built-in VCXO, which allows for further fine-grained frequency adjustment, making it even more suitable for a wider range of applications.

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