PCM3070IRHBR Datasheet/PDFThe PCM3070IRHBR is an integrated low-power audio codec that offers features needed for both professional audio applications and portable electronics. It consists of a linear stereo audio CODEC with a headphone driver, microphone quiescent current bias, a charge pump, low-noise microphone preamplifier, a 32-step digital volume control and a low-power digital audio interface. This CODEC is created specifically for portable applications that require low power consumption.
Application Field
The PCM3070IRHBR is suitable for professional audio applications such as recording studio systems, video conferencing systems, home audio systems, laptops, portable media players, and smartphones. It also finds application in analog-to-digital and digital-to-analog conversion for audio with high-precision recording and playback. The integrated functions of this CODEC make it efficient for portable systems and portable media players, allowing them to receive uncompressed stereo audio and transmit data simulataneously.
Working Principle
The PCM3070IRHBR employs a 32-bit Delta-Sigma architecture to reduce power consumption, which is especially important for portable devices where battery life can be a major factor. An oversampling clock of up to 194 MHz is used for analog-to-digital conversion, providing a high bit-resolution for recording and playback. The integrated headphone driver offers up to 26 mW RMS output with a noise-free output level of 94 dB.
The PCM3070IRHBR also features a low-noise microphone preamplifier that allows for accurate and noise-free sound recording. It has a noise rating of 120 dB and includes an integrated charge pump scheme and programmable quiescent current bias, allowing it to achieve an ultra-low power consumption level of 4 mA.
The PCM3070IRHBR supports three of the most commonly used digital audio interfaces: USB, I2C, and S/PDIF. It also includes several analog interfaces such as stereo mic inputs, stereo line inputs, stereo line outputs and stereo headphone outputs. In addition, this CODEC provides a 32-step digital volume control, allowing users to adjust the level of the audio and customize the sound.
Conclusion
The PCM3070IRHBR is an integrated low-power audio codec that is ideal for both professional audio applications and portable electronics. It is designed to reduce power consumption, providing low current levels and high bit-resolution for accurate recording and playback. The integrated features of this CODEC provide interfaces for audio input and output as well as a digital volume control to customize the sound. The PCM3070IRHBR is an excellent solution for portable systems and portable media players that need low power consumption and audio quality.