The S3RFPAISM5G8T18 has been designed for use in high performance wireless communications systems requiring a combination of high output power and low noise performance and high efficiency.
The Power amplifier is driven from a 50Ohm source and drives a 50Ohm load. No external matching components are requred. The PA can provide 24dBm to 27dBm peak power to the 50Ohm load. The output power is achieved by combining power from four sub amplifiers operating in parallel. The PA design is differential but the input and output are both single ended. A balun is used on the input to convert the single ended signal to differential and a power combiner is used on the output to combine the power from sub amplifiers and to convert to single-ended.
The amplifier is biased using a PTAT current source which minimizes variation over temperature. The temperature slope and the value of the bias current for each PA are programmable. The power supply voltage of the PA also needs to be programmable.
This IP and its component sub-blocks, may be tailored for specific system implementation requirements and/or may be optimally integrated with our broad portfolio of RF Building Block IP.
The PA can be cost-effectively ported across foundries and process nodes upon request.