Optichron Inc., in nonlinear signal processing, announced the performance digital pre-distortion (DPD) linearization device. The OP4400 is a monolithic integrated circuit (IC) that implements Optichron’s proprietary Turbolinear technology to eliminate nonlinear distortion, the dominant performance limiter in power amplifier (PA) applications. The OP4400 is adaptive and applicable to any PA configuration (including Doherty and AB class amplifiers), and supports any signal chain architecture and modulation scheme. It requires no external processor or support circuitry, and requires no algorithmic programming, thus making it commercially available, self-contained DPD device.
Roy Batruni, founder, chairman, CTO and executive vice president of engineering of Optichron, said, "Optichron’s new OP4400 allows system designers a broad combination of price/performance options that were previously unattainable. To provide both a higher quality output signal together with improved power amplifier efficiency is a signal processing breakthrough. It enables the transmission of more power with less costly components, or a dramatic increase in the possible performance, which can support innovative system features."
