Digital predistortion IC enables amp efficiency
Implementing the company’s Turbolinear technology to eliminate distortion, the OP4400 digital predistortion IC is fully adaptive and universally applicable to any PA configuration (including Doherty and AB class amplifiers), and supports any signal chain architecture and modulation scheme. The part offers 16-bit resolution at speeds up to 250 Msamples/s, allowing for a minimum of fifth-order compensation of signal bandwidths up to 50 MHz.
Housed in a 352-pin BGA package it requires no external processor or support circuitry, and no algorithmic programming. In addition, the part offers efficiencies in excess of 40% for Doherty amplifiers under a variety of protocol conditions. ACPR improvements are achieved in the range of 30 dB when processing WCDMA, CDMA, or WiMAX signals, while SFDR improvements in excess of 40 dB can be achieved when operating in a multicarrier GSM environment.(Call company for pricingprod qty, 3rd qtr.)
Optichron , Fremont , CA
Sales 510-249-5230
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