PCM4222PFBR Integrated Circuits (ICs)

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The PCM4222PFBR is a highly-integrated, low-power, low-noise stereo digital audio processor with embedded digital decoding. This device offers a wide range of features, including digital microphone input, integrated DSP, and audio diagnostic support. It is designed for multi-channel audio devices for consumer audio applications such as smartphones, portable music players, and home theater systems.

The PCM4222PFBR offers a flexible and effective method for digital audio processing, allowing for both digital gain and volume control, as well as noise cancellation and microphone equalization control. It also includes a analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) which support various sampling frequencies ranging from 44kHz to 96kHz.

Application fields

The PCM4222PFBR is designed for use in consumer audio applications, such as:

• Smart phones
• Tablet computers
• MP3 players
• Home theater systems
• Car stereos
• Portable audio devices

The PCM4222PFBR can be used in both mono and stereo digital audio applications, allowing for individual voice and music channels. It offers a variety of digital sampling rates and a wide range of digital input and output pinouts, allowing for a range of application possibilities.

Working principle

The PCM4222PFBR is a highly-integrated audio processor supporting both digital and analog audio functions. It’s integrated ADC and DAC enable the device to convert between analog and digital audio formats. The PCM4222PFBR supports various digital and analog audio formats, including I2S, S/PDIF, PCM, and Dolby Digital.

The PCM4222PFBR features a digital signal processor (DSP) with multiple programmable audio processing functions, such as volume control, frequency shaping, dynamic range control, microphone equalization, and noise cancellation. The PCM4222PFBR also features integrated diagnostic support, allowing for system diagnosis and adjustment to improve audio performance.

The PCM4222PFBR utilizes an integrated low-noise, low-power design to provide excellent audio quality. It is designed for easy integration into a wide-range of consumer audio devices, allowing for improved audio performance.

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