Based on DDFA technology, the CSRA6620 is designed to deliver the high power efficiency of a class D amplifier with the fidelity of high end linear amplifiers.
Qualcomm DDFA is a product of Qualcomm Technologies International, Ltd.
Our latest Qualcomm® DDFA™ digital amplifier technology is the result of over ten years research and development, with the aim of helping to bring high-end amplification to more consumer audio devices than ever before.
DDFA technology is designed to combine the power advantages of class D amplifiers with the high performance of traditional linear amplifiers, engineered to perfectly balance efficiency and audio quality designed to deliver a superior listening experience. DDFA is a Direct Digital Feedback Amplifier based on a patented closed-loop digital architecture that is designed to provide multiple advantages over traditional analog class D amplifier solutions.
A unique and patented digital architecture delivers market leading audio performance across the entire audio frequency band delivering:
Closed-loop operation and high-resolution DSP helps maintain performances at all times:
As well as a patented core architecture, next generation DDFA technology is designed to integrate an advanced configurable DSP with high-resolution support, which helps to provide manufacturers comprehensive control on the audio path without relying on an external device.
With support for 32bit PCM up to 384KHz and DSD64/128 input, integrated high-resolution interpolation filters and equalizers, DDFA helps devices be compatible with today’s high-resolution trends.