The SE2537L and SE2581L power amplifiers from SiGe Semiconductor provide manufacturers with a very low cost route to developing Wi-Fi systems. The amplifiers are RF building blocks that simplify development and reduce cost of discrete Wi-Fi implementations in client access applications including laptop computers, gaming systems, small office and home based access points. When used in combination, the power amplifiers can reduce the system bill of materials by as much as 30% compared to current solutions.
The SE2537L is a 5GHz power amplifier, and the SE2581L is a 2.4GHz power amplifier. They incorporate features that simplify design compared to other discrete solutions on the market. The combined solution of SE2537L and SE2581L integrates a digital interface that simplifies board design by eliminating the need for expensive and current hungry analog reference voltages. The integrated power detector in the SE2581L offers an input port for a coupled signal from the 5GHz output line, offering a single detector output for both bands - an industry first for discrete solutions. This feature removes the need for an external coupler, and simplifies the interface to the baseband controller by easing software calibration.
Systems based on the SE2537L and SE2581L will achieve excellent linearity and transmit power levels, capable of +20dBm in 2.5 GHz and +19.5 dBm at 5 GHz, with good ACPR performance.
