PCM1605Y

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Data Acquisition – ADCs/DACs – Special Purpose

A PCM1605Y is an Application-Specific Integrated Circuit (ASIC) that is used to digitise audio signals in consumer compact disc players. It is a multi-channel, low-cost, high-performance ADC developed by Philips Semiconductors. The PCM1605Y includes three separate functions - a sample rate converter (SRC), a multi-channel digital-to-analogue converter (DAC) and a multi-channel analogue-to-digital converter (ADC).

Application Field of PCM1605Y

The PCM1605Y supports 16-bit linear PCM audio with sample rates up to 96kHz from CDs, DVDs and other sources. The PCM1605Y is widely used in consumer products such as CD players, DVD players and other consumer electronics. It can also be found in professional audio applications such as digital mixing consoles and audio interfaces.

The PCM1605Y can be used to digitize analogue audio signals such as microphones, Hi-Fi amplifiers, radio receivers and other audio sources. It can also be used in broadcast applications such as digital video recorders and television receivers. Among its many uses, the PCM1605Y can be used to encode digital audio signals into pulse code modulation (PCM) for digital storage and transmission.

Working Principle of PCM1605Y

The PCM1605Y is designed to convert analogue audio signals into digital signals. It works by first amplifying and then sampling the signal. The signal is then sent to the analogue-to-digital converter (ADC) where it is digitised and stored in a digital signal buffer. This digital signal is then fed to the digital-to-analogue converter (DAC) which converts it back into an analogue signal.

The PCM1605Y uses a multi-bit sigma-delta ADC which has low distortion and a wide dynamic range. This allows it to accurately capture even low-level signals. The PCM1605Y also has a multi-bit extended dynamic range DAC which uses additional bits to extend its dynamic range. This makes it ideal for professional audio applications.

The PCM1605Y also incorporates a sample rate converter (SRC) which allows it to convert between different sample rates. This is useful for applications that require high-precision audio, as the SRC allows for more accurate conversion of audio signals from different sources. It also helps reduce distortion in audio signals when converting between different sample rates.

The PCM1605Y also features an onboard PLL which helps it achieve improved jitter performance. This ensures that the data is accurately transferred from the source without any errors or distortion. Finally, the PCM1605Y has an adjustable clock rate which can be used to adjust the clock frequency depending on the application.

The PCM1605Y is a great choice for a variety of audio applications. Its low-cost, accurate conversion and wide dynamic range make it a reliable choice for audio professionals. The ability to adjust the clock rate and sample rate converter also make it a versatile tool for a variety of audio tasks.

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