The rearchitected Cirrus Logic Pro Audio Family of converters initially includes high-performance, low-power analogue-to-digital converters (ADCs) and will be 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 improved levels of performance along with low power consumption, as well as system-level enhancements, such as hybrid gain control, to solve common industry audio problems.
“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’ 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.”
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 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.
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 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.
The devices are 32-bit resolution ADCs that support differential analogue 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.
Samples of the CS5302/04/08P ADCs are available to order now.
