PCM2906DBG4

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PCM2906DBG4 Application Field and Working Principle

The PCM2906DBG4 is a stereo audio CODEC (coder-decoder) from Texas Instruments. This single chip device combines an analog audio codec and USB audio interface into one tiny package. It is ideal for a wide range of consumer products such as smartphones, headsets, laptops and gaming consoles. The device supports high performance 8 kHz to 48 kHz sampling rates and stereo playback/recording. This makes it ideal for a range of audio applications, including voice recognition, audio streaming and gaming.

Features

• 24-bit resolution DAC & ADC

• USB 2.0 high speed audio

• Integrated microphone & headphone amplifiers

• Streaming & playback of audio files

• Stereo sound quality

• Full-duplex operation

• Low power consumption

Application Field

The small form factor and low power consumption of the PCM2906DBG4 make it ideal for portable consumer audio applications. It is suitable for products such as smartphones, tablets, gaming consoles and personal audio players. The device is also capable of playing back audio files, allowing consumer products to be used for entertainment purposes. Other applications include voice recognition, voice commands and streaming audio.

The PCM2906DBG4’s low power consumption also makes it suitable for wearable devices. The device can be integrated into fitness trackers, hearing aids and other wearable products. The device’s integrated microphone and headphone amplifiers allow it to be used in a range of applications, from listening to music to capturing audio data.

Working Principle

The PCM2906DBG4 combines a 24-bit ADC, a 24-bit DAC, as well as a USB 2.0 high speed audio interface. The ADC and DAC are capable of sampling rates from 8kHz to 48kHz and stereo playback/recording. The USB audio interface is used to stream audio data between the device and a computer. Audio signals received by the device are processed by the ADC and then transmitted via the USB interface. Conversely, audio signals received from the computer are processed by the DAC and then sent out as an analog audio signal.

The device also features integrated microphone and headphone amplifiers, allowing the user to connect headphones or microphones to the device without the need for external amplifiers. The device is powered by either a single 5V supply or by a USB connection. The device is designed to consume little power, making it suitable for battery powered systems.

Conclusion

The PCM2906DBG4 is an advanced CODEC from Texas Instruments, combining an analog audio codec and USB audio interface. This makes it ideal for a wide range of consumer audio applications, from smartphones and laptops to gaming consoles. The device is capable of sampling rates from 8kHz to 48kHz and stereo playback/recording. It also features integrated microphone and headphone amplifiers and USB audio streaming. The device is ideal for portable consumer audio applications due to its small form factor and low power consumption.

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