PCK953BD,128

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PCK953BD,128 is a clock generator, PLL and frequency synthesizer. It is used to generate periodic signal or function which is used for device synchronization or other signal processing in many areas such as radio communication system, mobile phone, television, audio and video signal in combination with mixed signal system.

The PCK953BD,128 is essentially an integrated frequency synthesizer. It contains a voltage controlled oscillator (VCO), a Phase Frequency Detector (PFD) and an integer divider chain. It is a highly flexible device with a variety of on-chip frequency synthesizing functions to meet the needs of the user. The frequency synthesizer can generate frequencies up to 125Mhz in an integer division mode with a single VCO. It is compatible with a wide range of external components. It operates with single ended logic and features negative edge triggered logic inputs and logic outputs.

The PCK953BD,128 chip mainly uses the following circuit blocks to realize frequency synthesis:

• VCO: The Voltage Controlled Oscillator (VCO) is a circuit block used to generate an oscillating waveform. It is an essential element of the frequency synthesizer. The output frequency of the VCO is determined by an external voltage, which is usually carefully chosen to generate the desired frequencies.
• PFD: The Phase Frequency Detector (PFD) is a circuit block used to compare two input frequencies. It is used to check the phase and frequency difference between reference clock and VCO output and adjust VCO operating voltage accordingly.
• Integer Divider: Integer divider block is used to divide the frequency of VCO output by a given integer. This is how the frequency is synthesized by the frequency synthesizer chip.

As previously mentioned, the PCK953BD,128 chip is a highly flexible device with a variety of on-chip frequency synthesizing functions. It allows designers to quickly and easily implement frequency synthesis in a wide range of applications such as clock generation, telecommunication, television and audio/video signals, time division multiplexing, direct access radiotelephone, digital subscriber line and other communications systems.

The PCK953BD,128 chip is an excellent device that provides high performance yet low cost frequency synthesis. It is suitable for a variety of programmable frequency synthesis applications and its on-chip real-time programmability makes it ideal for applications that require high frequency switching speed, fine tuning resolution and fast settling time. The high performance of this device make it a great choice for applications in various fields such as consumer electronics, communications, industrial and automotive electronics.

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