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Cirrus Logic Announces New Family Of Professional Audio Products

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Cirrus Logic has announced a new family of professional audio products that equips manufacturers with transparent audio converters, allowing designers to customise their products.

The newly rearchitected Cirrus Logic Pro Audio Family of converters initially includes high-performance, low-power analogue-to-digital converters (ADCs), followed later this year by digital-to-analogue converters (DACs) and an audio codec. Using a process optimised for analogue performance and digital density, Cirrus Logic’s pro audio devices offer world-class performance and industry-leading low power consumption along with system-level enhancements, such as hybrid gain control, to solve common industry audio problems.

"The Cirrus Logic team has a passion for audio and our newly architected Pro Audio Family offers the truest reproduction of audio sound, from instrument to ear. That is what we mean by true transparency," said Eddie Sinnott, director of Codecs and Standard Products, Cirrus Logic. "Cirrus Logic's new high-performance Pro Audio Family will make it easier for customers to design great sounding personalised products that differentiate them in their markets, while being assured they are backed by our top-level engineering and customer support."

Cirrus Logic CS5302/04/08P Analog-to-Digital Converters
The first products to be introduced are a series of three ADCs aimed at providing transparent audio conversion within a device that is simple to use and integrate. The Cirrus Logic CS5302P stereo ADC, CS5304P 4-channel ADC and CS5308P 8-channel ADC are designed to be used in digital mixers, USB audio interfaces, home audio and audio video receivers, musical instruments such as synthesizers, DJ mixers and amplifiers, video recording and automotive applications. A simple control scheme together with a single power rail and flexible clocking configuration make these devices easy to integrate for all markets.

Hybrid Gain Control Solves Front-End Gain Complexities
Cirrus Logic's hybrid gain control redefines microphone front-end gain design to reduce pop noise and simplify the customer’s system design, when compared to existing solutions. By co-locating the analogue and digital gain states within one device, gain transactions between the two are matched. This feature allows customers to retain their existing mic preamp design as a product differentiator while reducing the overall system complexity. The hybrid gain control is suited to all customers implementing mic-pre gain control, such as digital mixing consoles and USB audio interfaces for digital audio workstations, as well as other applications.

High Performance in Low Power Budget
Whether in the studio or at home, the rearchitected Pro Audio Family delivers excellent performance all within a 25mW/ch power budget. The devices being introduced today are 32-bit resolution ADCs that support differential analog input with sample rates up to 768 kHz. The ADCs use a 5th-order, multibit sigma-delta modulator followed by digital filtering and decimation to provide a dynamic range of 126dB for the CS5302P and 123dB for the CS5304/8P. THD+N for all products is below -110 dB.

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