Shusuke Kawai, Hiroki Ishikuro, Tadahiro Kuroda. A 2.5Gb/s/ch 4PAM inductive-coupling transceiver for non-contact memory card. In IEEE International Solid-State Circuits Conference, ISSCC 2010, Digest of Technical Papers, San Francisco, CA, USA, 7-11 February, 2010. pages 264-265, IEEE, 2010. [doi]