PCM1796DB

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The PCM1796DB is a multi-bit delta-sigma digital-to-analog converter (DAC) commonly used in audio and home audio applications. The device consists of a voltage reference and a delta-sigma modulator that uses a combination of noise-shaping and digital filtering to provide high-resolution, low-noise output. The PCM1796DB is designed to provide excellent performance in applications such as digital audio pre-amplifiers, digital-to-analog converters, surround sound systems, multimedia audio systems, and portable audio players.

The PCM1796DB is ideal for digital-to-analog conversion due to its low noise and high-speed update rate. The device has a multi-bit delta-sigma modulator with an oversampling ratio of up to 128 times the basic audio sample rate. This allows for very high resolution and low noise with low harmonic distortion. The device also supports up to 32-bit sample word lengths, allowing for greater dynamic range between loud and quiet passages. The PCM1796DB is capable of sampling rates up to 192kHz.

The PCM1796DB utilizes an on-chip voltage reference, as well as a high-current programmable output buffer to drive its outputs. The device includes a soft mute function that allows for smooth transition of audio data. The device also includes a PLL (phase-locked loop) on-chip that allows for the dynamic rate control of digital audio streams. The device also supports four digital input formats, including I2S, Left-Justified, Right-Justified, and TDM (Time Division Multiplexed).

The PCM1796DB features a number of features that make it well suited to audio applications. The device features adjustable high and low pass filters, as well as a peak detection circuit that allows for better control of clipping or overdrive in certain applications. The device also has a dynamic range of up to 110dB and up to a 1MHz signal bandwidth. The PCM1796DB includes an integrated thermal shut-down function for over-temperature protection.

The PCM1796DB is used in a range of audio applications, from digital pre-amplifiers to surround sound systems and multimedia systems. Its combination of features makes it well suited for use in audio applications, as it is capable of providing high-quality, low-noise performance. The device is also designed to provide low power consumption and a wide range of operating temperatures.

In summary, the PCM1796DB is a multi-bit delta-sigma digital-to-analog converter specifically designed for audio applications. The device includes an on-chip voltage reference and a high-current programmable output buffer, as well as support for up to 32-bit sample word lengths and up to a 192kHz sampling rate. It also has adjustable high and low pass filters, a peak detection circuit, a dynamic range of up to 110dB, and an integrated thermal shut-down function for over-temperature protection. The combination of features allows for high-quality, low-noise performance in audio applications such as digital audio pre-amplifiers, digital-to-analog converters, surround sound systems, multimedia audio systems, and portable audio players.

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