CPPLT7-LZ76P

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Programmable oscillators are widely used in a variety of applications, from signaling systems to radio frequency (RF) and microwave applications. Among all the programmable oscillators, the CPPLT7-LZ76P oscillator stands out with its superior power efficiency, low power consumption, and high frequency stability. This article will provide an overview of the application field and working principle of this special oscillator.

Application field of CPPLT7-LZ76P

The CPPLT7-LZ76P oscillator is a voltage-controlled programmable oscillator (VCO) specifically designed for use in high-speed signaling systems that require mission-critical accuracy, such as RF and microwave communications, satellite communication, and mobile communications systems. This oscillator also finds application in industrial and instrumentation control systems, including programmable logic controllers (PLCs) used in manufacturing and robotics. It is perfect for systems that require a high degree of frequency stability and accuracy over temperature and over wide supply voltage variations.

The CPPLT7-LZ76P oscillator is designed for low power applications and utilizes a low-power consuming CMOS IC that allows the oscillator to operate at lower power levels and at lower voltage compared to standard quartz oscillators. It provides superior jitter performance with a total harmonic distortion of less than +/- 0.5%. It is also capable of fast settling time, sub-nanosecond rise time, and 0.5% voltage control. This performance is ideal for applications that require ultra-low jitter clock signals.

Working principle of CPPLT7-LZ76P

The CPPLT7-LZ76P oscillator utilizes a voltage-controlled oscillator architecture that enables it to vary its output frequency in response to an applied control voltage. It uses a digital to analogue converter (DAC) to receive an input voltage and convert it into a control voltage. This control voltage is then applied to a pair of resistor-capacitor (RC) integrator circuits, which combine to form a voltage-controlled oscillator (VCO) circuit. The VCO circuit produces a series of pulses whose frequency is determined by the control voltage. The output of the VCO is then fed into a divide-by-N counter, which divides the frequency of the oscillator down to the desired output frequency.

The CPPLT7-LZ76P oscillator also employs a phase-locked loop (PLL) architecture that maintains good frequency accuracy and phase noise performance over temperature and supply voltage variations. The PLL utilizes a phase detector and a voltage-controlled oscillator (VCO) to drive the loop. The phase detector receives the input frequency and compares it to the output frequency of the VCO. Any difference in frequency is detected and the error voltage is used to adjust the frequency of the VCO. This ensures that the frequency of the oscillator remains stable over temperature and supply voltage variations.

Conclusion

The CPPLT7-LZ76P oscillator is a high-performance, low-power consuming programmable oscillator designed for mission-critical applications. Its voltage-controlled oscillator architecture and phase-locked loop architecture provide superior frequency and phase noise performance over temperature and supply voltage variations. This makes it perfect for use in high-speed signaling systems, RF and microwave communication systems, and industrial and instrumentation control systems.

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