Microchip announces its latest 2.4 GHz 256-QAM RF high-power amplifier – the SST12CP21 – which offers ultra-low EVM and current consumption
for 256-QAM and IEEE 802.11n systems.
The SST12CP21 delivers high linear output power of up to 23dBm at 1.75% dynamic EVM, with MCS9 HT 40 MHz bandwidth modulation at 5V and 320 mA current consumption. Additionally, the SST12CP21 delivers 25dBm linear power at 3% EVM with only 350mA current consumption for 802.11g/n applications. This performance significantly extends the range of 802.11b/g/n WLAN and MIMO systems, while consuming extremely low current at the maximum 256-QAM data rate. The SST12CP21 is also spectrum mask compliant up to 28 dBm for 802.11b/g communication. Board space is reduced by the small 3×3×0.55mm, 16-pin QFN package that matches a popular pin-out.
Achieving the maximum data rate and longest range, whilst minimising current consumption, is essential to Wi-Fi® MIMO access-point, router and set-top-box system designers. The SST12CP21 power amplifier has a low operating current of 320mA at 23dBm, and 350mA at 25dBm, which enables multi-channel and higher data rate WLAN systems. This amplifier also features 50 ohm on-chip input match and simple output match, which is easy to use and reduces board size.
Additionally, the integrated linear power detector provides accurate output power control over temperature and 2-to-1 output mismatch.
The SST12CP21 is available today for sampling and volume production, in the popular 3×3×0.55mm, 16-pin QFN package. Evaluation boards for the new SST12CP21 power amplifiers are also available.
• SST12CP21 combines high linear output power with low current in small package
• Enables longest range for Wi-Fi® MIMO and higher data-rate WLANs
• Combines extremely low current consumption with the maximum 256-QAM data rate
• Accurate output power control over temperature and 2-to-1 output mismatch
• Small 16-pin package features popular pin-out