CD74HC4046AM96G4

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers, components like the CD74HC4046AM96G4 are designed to provide clock signals for digital systems and to synthesize high-frequency signals from a low-frequency reference such as from a crystal oscillator.

The CD74HC4046AM96G4 is a highly-integrated frequency synthesizer and clock generator that contains both analog and digital circuitry. It is intended for high-speed frequency synthesis and clock generation applications. It includes two synchronous frequency dividers, a voltage-controlled oscillator (VCO), and an internally-tuned phase-locked loop (PLL).

The CD74HC4046AM96G4 can be used in a variety of applications such as frequency synthesis, clock generation, clock timing, low noise clock multiplication, and signal synthesis. It can also be used to generate precise high-frequency clock signals with low jitter.

Application field

CD74HC4046AM96G4 is ideal for field such as USB and Ethernet communication, embedded systems, signal processing and microwave applications. Additionally, it can be found in automotive, medical, and consumer applications as well.

Theintegrated voltage-controlled oscillator or VCO allows the CD74HC4046AM96G4 to localize the frequency of the clock output to a range of 1MHz to 40MHz depending on the application. Its built-in frequency synthesizer makes it able to smoothly tune frequencies from the reference frequency to the desired frequency.

The CD74HC4046AM96G4 can provide superior performance for embedded systems requiring precise timekeeping, such as GPS applications. Its excellent jitter performance and precise clock outputs help prevent any potential location error resulting from bad timing.

Working principle

The CD74HC4046AM96G4 is a combination of a phase locked loop and a voltage controlled oscillator. The PLL is used to lock the output frequency to the reference frequency. The VCO is used to adjust the frequency of the output based on a user-adjustable voltage.

The main components of a CD74HC4046AM96G4 are: the reference frequency source, the voltage controlled oscillator (VCO), the low-pass filter, the phase frequency detector, the loop filter, and the charge pump.

The reference frequency is a clock signal taken from a stable crystal oscillator. It is fed into the VCO and modulated in frequency, dependent on the current frequency setting. This signal is then sent to the loop filter and low-pass filter before being fed back to the phase frequency detector.

The phase frequency detector compares the reference signal to the VCO output. The difference is measured and sent to the charge pump, who adds or subtracts current from the loop filter in order to adjust the voltage supplied to the VCO. This adjusted voltage causes the VCO to adjust the output frequency.

The CD74HC4046AM96G4 is then able to generate a new clock signal matching the reference frequency with high accuracy. In applications where jitter must be very low, the PLL in the device helps to eliminate the problems of jitter.

The CD74HC4046AM96G4 is a highly-integrated frequency synthesis and clock generator, with a wide range of applications in various fields. It is ideal for embedded systems requiring precise timing, and its low-jitter performance ensures reliable operation without interference.

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