DSC2311KL1-R0002

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Pin Configurable/Selectable Oscillators are electronic devices that utilize specific bonding technologies and configurable pins to provide clients with a wide range of frequency control and accuracy capabilities. The DSC2311KL1-R0002 is one such oscillator; this article aims to discuss its application field and working principle.

The DSC2311KL1-R0002 operates on a low-power CMOS process and is available in a standard 24-lead PLCC package. In terms of frequency, it offers a frequency range between 20 MHz and 150 MHz, with center frequencies ranging from 25 MHz to 100 MHz. The oscillator features a low jitter of less than 0.5ps, a low phase noise of -135dBc/Hz at 10kHz offset and a wide pull range of about 20 ppm/VCC.

Because of its low power consumption, wide frequency range and selectable centre frequency, the DSC2311KL1-R0002 can be applied in telecommunications, test and measurement, industrial and consumer electronics, automotive and military systems. For telecommunications, it is suitable for use in storage area networks, multilayer switches, SONET clocks, network routers, network server and HDSL/ADSL links. Test and measurement applications include signal generators, audio frequency analyzers, oscilloscopes and signal analyzers. Its application in industrial and consumer electronics includes high-end control electronic devices, home appliance controllers, embedded controllers and multimedia terminals. In terms of automotive and military systems, it can be used for navigation receivers, weapon control systems and automotive display systems.

The DSC2311KL1-R0002 features a selectable centre frequency to provide users with additional flexibility in system design. This selectable centre frequency can be configured by on-chip or off-chip components. The on-chip method is achieved by using a set of selectable gates, while the off-chip method can be achieved by using an external voltage-controlled oscillator (VCO) or an external resistor-capacitor (RC) network. Once the selection of the centre frequency is completed, the oscillator can now be packaged and sold.

The DSC2311KL1-R0002 also features a wide pull range of about 20 ppm/VCC. This pull range allows for a greater range of frequencies to be used in applications that demand extreme temperature stability and frequency accuracy. In addition to its wide pull range, the oscillator also has an SPI-compatible serial interface. This is useful for on-board configuration and selection of the oscillator’s frequency. The SPI-compatible serial interface can be used to change the oscillator’s frequency, but it can also be used to select the point in the pull range where the oscillator starts to operate.

In terms of its working principle, the DSC2311KL1-R0002 utilizes a selectable gate that works in combination with the external RC network or VCO to set the centre frequency. As voltage is applied to the gate, the charge-pumping oscillator starts to operate. This generates a low-frequency signal, which is then used to control the frequency and accuracy of the pin-configurable oscillator. The oscillator then utilizes a pulse-shaping technique to generate a high-quality clock signal with very low jitter and low-phase noise.

The DSC2311KL1-R0002 is a pin-configurable oscillator that provides users with a wide range of frequency control and accuracy capabilities. It offers a wide pull range of about 20 ppm/VCC, a low jitter of less than 0.5ps, a low phase noise of -135dBc/Hz at 10kHz offset and an SPI-compatible serial interface for on-board configuration and selection of the oscillator’s frequency. This article discussed the application field and working principle of the DSC2311KL1-R0002 and showed that it is an ideal choice for a wide range of telecommunications, test and measurement, industrial and consumer electronic, automotive and military applications.

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