PCM1802DBG4

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The PCM1802DBG4 is a special-purpose, high-performance, 24-bit delta-sigma analog-to-digital converter (ADC) with an integrated digital filter for audio applications. The PCM1802DBG4 features a differential analog input stage, dual-scale architecture, high dynamic range and low noise, and low-power consumption design. This device is capable of providing a linear output range from -98.03 dB full-scale (FS) to +4.08 dBFS for an input voltage range of -3.3 to +3.3 V and a sampling frequency of up to 192 kHz. This device also offers the advantage of two adjustable gain stages, allowing it to be used in both low-level and high-level input applications. The PCM1802DBG4 also provides a digital output filter, eliminating the need for external analog filters.

The PCM1802DBG4 is specifically designed for professional audio applications, and is ideal for applications such as personal audio devices, professional audio equipment, and automotive audio systems. This device offers the latest technology in low-power audio conversion, providing low-noise, high dynamic range and excellent linearity for professional audio equipment. This device is also offered in a ceramic-encapsulated hermetic housing, making it suitable for use in extreme environments.

The working principle of the PCM1802DBG4 is based on delta-sigma modulation. Delta-sigma modulation is a technique used to convert an analog signal into a digital signal. In delta-sigma modulation, an analog signal is sampled and quantized at a high frequency. The quantized digital samples are then filtered and decimated to yield a lower frequency digital output. The PCM1802DBG4 uses a differential analog input stage to reduce common-mode noise and reduce distortion. The device also has two adjustable gain stages to allow for a wide range of input signal levels. The digital filter then reduces noise in the digital output signal while preserving dynamic range and linearity.

The PCM1802DBG4 is a versatile ADC device designed for a wide range of professional audio applications. The device offers an excellent dynamic range, low-noise and low-power consumption, making it ideal for portable audio equipment and automotive audio systems. The device also features a digital filter, eliminating the need for additional external filters. The device is offered in a ceramic-encapsulated hermetic package, making it suitable for use in extreme environments.

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