PCM3002EG

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PCM3002EG – An Audio CODEC

The PCM3002EG (or Pulse Code Modulation 3002EG) is a multi-function audio CODEC (Coder-Decoder) used to convert analogue audio signals to digital signals, as well as digital signals to analogue audio signals. It is an integrated Audio/Voice Digital Signal Processor (DSP) used in various multimedia and consumer applications. This CODEC is one of the leading from Wolfson Microelectronics and is greatly sought after for its high performance, low power consumption and simplified implementation.

Application Field

The PCM3002EG can be used in several audio applications, including multimedia, consumer electronics, portable communications and automotive. It has been optimised for applications such as video conferencing, headset implementations, hands-free cordless phones, wireless communication handsets, mobile phones, wireless microphone systems and GPS systems. The PCM3002EG is used as a complete audio solution, making it suited to a range of different sound processing requirements.

Working Principle

The PCM3002EG works by encoding analogue audio signals into digital signals and then decoding them back into analogue audio. This CODEC is based on pulse code modulation (PCM), which is a digital representation of an analogue signal that encodes the signal by taking samples of the amplitude of the signal at even intervals. The PCM3002EG converts the analogue signal into digital signals using a multi-bit sigma delta architecture to capture the original sound quality of the signal. The signal is then decoded using digital-to-analogue conversion to transform it back into an analogue signal.

The PCM3002EG is capable of handling up to 24-bit signal resolution, so it can capture and reproduce the original sound quality of the signal accurately. The CODEC also has a powerful integrated amplifier, allowing it to be used as a complete audio solution.

Additional Features

The PCM3002EG also has a number of additional features that make it a versatile choice for audio applications. It has integrated noise profiles, flexible gain control, integrated pop suppression and adjustable sampling frequency. It also has a low power sleep mode that allows it to save power by disabling parts of the circuit while still maintaining a minimal power draw.

The PCM3002EG also has an integrated microphone preamplifier and three digital outputs, making it an ideal choice for headset implementations. It is also compatible with most audio systems and digital audio interfaces.

Conclusion

The PCM3002EG is a versatile, high-performance audio CODEC that is used in a variety of audio applications. Its multi-bit sigma delta architecture and integrated amplifier makes it ideal for capturing and reproducing high-quality audio. Its additional features such as integrated noise suppression, flexible gain control and adjustable sampling frequencies also make it suitable for a range of audio needs.

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