PCM2901E

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The PCM2901E is a low-power, high-performance, CMOS audio codec intended for use in the transmission and reception of off-hook and on-hook telephone speech signals. It is also suitable for other applications involving the transmission of high-quality linear audio, such as in fax and modems, Internet telephony, cellular/cordless phones, Interactive Voice Response (IVR) systems, and other voice or data communication applications. The PCM2901E is a part of Texas Instruments\' family of audio codec products.

The PCM2901E has a wide range of features designed for use in speech-oriented telecom applications. It supports different sampling rates ranging from 8 kHz to 44.1 kHz, a wide line input and output range, low power consumption and high signal-to-noise ratio (SNR), and supports precision control of the audio signal path. It also supports both 3-wire and 4-wire interfaces.

The PCM2901E\'s application field includes off-hook and on-hook telephone speech, fax and modems, interactive voice response (IVR) systems, internet telephony, cellular/cordless phones, and other voice or data communication applications. It is especially suitable for applications where high audio quality, low power consumption and a wide range of input and output capabilities are critical.

The PCM2901E is designed to provide a low-power, high-performance audio codec for telecommunication and voice communication applications. It supports sampling rates from 8 kHz to 44.1 kHz, and features a wide line input and output range, high signal-to-noise ratio (SNR), low power consumption, and precision control of the audio signal path. The PCM2901E includes support for both 3-wire and 4-wire interfaces.

The PCM2901E supports both differential and single-ended analog inputs, allowing the user to select the input type appropriate for the application. The inputs can be configured for either line or microphone operation. The PCM2901E also supports separate digital and analog gain control, allowing fine-tuning of the audio signal. This ensures that the user has maximum control of the audio signal path.

The PCM2901E also features a high-performance analog-to-digital converter (ADC) and digital-to-analog converter (DAC). The ADC and DAC are designed for use in a variety of transmission and reception applications, including voice, fax and modem communication. The PCM2901E also includes an integrated low-power microphone boost, which makes it ideal for applications where a low power microphone input is required.

The PCM2901E\'s 4-wire serial audio interface provides easy integration into existing audio applications. The interface includes a 4-wire serial port with integrated clock and bi-directional data, a control interface with programmable registers and control signals, and a 16-bit stereo audio interface with on-chip support for both serial and parallel control. This allows the user to control all aspects of the device, including sample rate, input and output gains, and filter settings.

The PCM2901E also features integrated test features, such as self-test routines and diagnostic functions. These features enable the user to quickly and easily diagnose and correct any problems that may arise. Additionally, the PCM2901E includes integrated tone generation, which allows the user to tune the audio output of the device for optimal performance.

In summary, the PCM2901E is a low-power, high-performance CODEC intended for use in audio transmission and reception applications. It features a wide line input and output range, low power consumption, high SNR, and supports precise control of the audio signal path. Additionally, it supports both 3-wire and 4-wire interfaces, and includes integrated test features and tone generation. The PCM2901E is suitable for applications involving the transmission of high-quality linear audio, such as in fax and modems, Internet telephony, cellular/cordless phones, IVR systems, and other voice or data communication applications.

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