Multi-valued Signal Generation and Measurement for PAM-4 Serial-Link Test. - Natsuki Sato; Takahito Chigira; Kohei Toyoda; Yosuke Iijima; Yasushi Yuminaka (ISMVL, 2018)

PAM-4 Signal Transmitter using FPGA and DAC for Serial-link Test. - Yasushi Yuminaka; Natsuki Sato; Takahito Chigira; Kohei Toyoda; Yosuke Iijima (FLAP, 2020)