CXA1786N 1.1ghz-band Pll Ic For Mobile Communications
The CXA1821M integrated circuit is specifically engineered to enhance the performance of compact disc players by integrating essential functionalities into a single chip. The inclusion of an Automatic Power Control (APC) circuit enables the IC to automatically adjust the power levels of the laser used in the optical pickup, ensuring optimal performance and preventing damage due to overcurrent conditions.
The RF amplifier within the CXA1821M is responsible for processing the radio frequency signals received from the optical pickup. This signal processing is critical for accurately reading the data encoded on the compact disc. The focus error amplifier is designed to detect deviations in the focus of the laser beam, allowing for real-time adjustments to maintain precise focus on the disc surface. Similarly, the tracking error amplifier ensures that the laser remains aligned with the track being read, preventing skips or data loss during playback.
Furthermore, the 3-spot optical pickup output capability enhances the reading accuracy by utilizing multiple spots to read data simultaneously, which can improve the overall reliability and speed of data retrieval. The support for voltage-converted optical pickup output allows the IC to interface with various optical pickup designs, making it versatile for different compact disc player implementations.
Overall, the CXA1821M integrates critical functions for compact disc playback, improving efficiency and reliability in the reading process while simplifying the design requirements for manufacturers.The CXA1821M is an IC developed for compact disc players. This IC incorporates an APC circuit and RF, focus error, and tracking error Amplifiers for 3- spot optical pickup output. (The voltage-converted optical pickup output is supported. ) By Sony Electronics 🔗 External reference
Related Circuits
This simple circuit provides a regulated output of 4.7 volts for charging a mobile phone. A USB outlet supplies 5 volts DC at 100mA, which is adequate for slow charging of mobile phones. Most mobile phone batteries are rated...
The 220V AC mains supply is downconverted to 9V AC by transformer X1. The transformer output is rectified by diodes D1 through D4 wired in bridge configuration, and the positive DC supply is directly connected to the charger's output...
A mobile-controlled robot is a mobile device that offers extensive wireless control capabilities to the robot, as long as the cell phone remains within signal range. The mobile-controlled robot operates through a wireless communication interface, typically utilizing Bluetooth or Wi-Fi...
Stops charging when the battery is fully charged. Portable unit for charging mobile phones. Cellphone battery management is a significant issue while traveling, as power supply can be limited. The described circuit functions as an intelligent battery charger designed to...
The PLL synthesizer oscillator circuit is a feedback loop consisting of a reference oscillator, phase comparator, loop filter, voltage-controlled oscillator, programmable frequency divider, and various other components. In this circuit, the reference oscillator employs a crystal oscillator (OSC) to...
The project is developed by Team Stark, with Gilbert as the leader and team members Martin and Janssen. The tasks have been divided into three parts. The first part includes camera control, login database, installer, and network setup, which...