A PLL-free multi-PSK transmitter using synchronized charge extraction in a ring oscillator achieves 2 MSps symbol rate, 5.13% EVM, and 236 μW core power in 22-nm FD-SOI while supporting 16-PSK down to BPSK in one circuit.
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236 {\mu}W Direct-RF PLL-Free Multi-PSK Transmitter Using Oscillator-Based Phase Synthesis
A PLL-free multi-PSK transmitter using synchronized charge extraction in a ring oscillator achieves 2 MSps symbol rate, 5.13% EVM, and 236 μW core power in 22-nm FD-SOI while supporting 16-PSK down to BPSK in one circuit.