Microchip Technology’s SST12CP21 is a 2.4 GHz 256-QAM RF high-power amplifier. It offers low EVM and current consumption for 256-QAM and IEEE 802.11n systems. The SST12CP21 delivers linear output power of up to 23 dBm at 1.75% dynamic EVM, with MCS9 HT40 MHz bandwidth modulation at 5V and 320 mA current consumption. The SST12CP21 delivers 25 dBm linear power at 3% EVM with only 350 mA current consumption for 802.11g/n applications. This performance extends the range of 802.11b/g/n WLAN and MIMO systems, while consuming low current at the maximum 256-QAM data rate. The SST12CP21’s spectrum mask compliant up to 28 dBm for 802.11b/g communication. Board space is reduced by the small 3x3x0.55 mm, 16-pin QFN package that matches a popular pin-out.
The SST12CP21 power amplifier has a low operating current of 320 mA at 23 dBm and 350 mA at 25 dBm, which enables multichannel and higher data rate WLAN systems. This amplifier features 50 ohm on-chip input match and simple output match. The integrated linear power detector provides accurate output power control over temperature and 2-to-1 output mismatch.
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