MPC9992AC Integrated Circuits (ICs)

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MPC9992AC application field and working principle

MPC9992AC is a universal clock generator, phase-locked loop (PLL) and frequency synthesizer which is widely used in the communication business, computer industry, military and aerospace. The MPC9992AC can generate the outputs clock with wider range frequencies up to 900MHz and lower jitter. It can replace the traditional TCXO and VCXO-based oscillator to satisfy different frequency requirements in various applications.

The Application Field of MPC9992AC

MPC9992AC is widely used in many applications, such as:

• Wireless networks: WiMAX, Wi-Fi, ZigBee, Wimaxdirect, HDMI
• Video and audio systems: Standard definition television (SDTV) and high definition television (HDTV), digital video recorder (DVR), video recorder (VCR)
• Medical systems: MRI, CT scans, ultrasound imaging
• GPS receivers
• Netswitching applications: LAN, WLAN
• Embedded computer/ memory systems
• Communication systems: Cell phones, satellite transceivers
• Mobile multimedia systems: Pocket PCs
• Automotive systems: Navigation, on-board entertainment
• Home entertainment systems: DVD, Digital TV, Cable TV

The Working Principle of MPC9992AC

The MPC9992AC works in two stages. The first stage is the oscillator stage, where the external clock signal is input to the oscillator. The oscillator then generates a stable internal clock frequency. The second stage is the programmable frequency divider (PMD) stage, which divides the clock signal by a preset ratio to generate the desired output frequency.

MPC9992AC utilizes a phase locked loop (PLL) architecture to synchronize the output clock frequency with the reference clock signal. The reference clock is input to the PLL, which locks onto its frequency and output the phase- synchronous clock. The phase detector compares the phase of the feedback clock with that of the reference clock, and produces an error signal. An in-system programmable counter and charge pump are used to adjust the voltage-controlled oscillator (VCO) and generate the desired clock output.

The MPC9992AC also features integrated disturbance rejection, which prevents undesirable oscillator frequency drift and jitter due to changes in the environment. This makes it suitable for critical timing applications.

In summary, MPC9992AC is an ideal clock generator, PLL and frequency synthesizer that can generate a wide range of frequencies up to 900MHz with low jitter. It can be used in a wide range of applications and its integrated disturbance rejection ensures a stable and reliable output.

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