Fremont, Calif.Optichron Inc. has started to sample the OP4400-15IBBG and OP4400-20IBBG, compact extensions of the OP4400 family of digital pre-distortion (DPD) ICs.
The compact DPDs are available in a 14 mm x 14 mm, 169-pin BGA package. The OP4400-15IBBG and OP4400-20IBBG implement the key features of the OP4400 DPD family, which is designed to improve the efficiency of power amplifiers (PAs) in wireless communication systems by correcting nonlinear distortion. This gives designers headroom to sharply reduce system cost and operating power requirements.
The OP4400-15IBBG is optimized for linearization up to 85-MHz band, and the OP4400-20IBBG optimized for linearization up to 125-MHz band.
The small-footprint OP4400 DPDs target cost-sensitive applications that require up to 20-MHz of signal bandwidth (BW), including TD-SCDMA, remote radio heads (RRH), two-carrier WiMAX and four-carrier WCDMA implementations.
The self-contained devices further enable simpler, less-costly system designs because they do not require an external processor or support circuitry. All OP4400 DPDs have a simple CMOS interface, require no algorithmic programming and are universally applicable to any PA configuration (including class AB and Doherty), modulation scheme or signal chain architecture.
Pricing: In 100-unit pricing, the OP4400-15IBBG is $63; OP4400-20IBBG, $76.
Availability: Production volumes will be available in the first quarter of 2008.
Datasheet: click here.
Optichron Inc., 1-510-249-5230, www.optichron.com