Daisy chain transmitter for power reduction in inductive-coupling CMOS link

作者：Niitsu Kiichi^*; Miura Noriyuki; Inoue Mari; Nakagawa Yoshihiro; Tago Masamoto; Mizuno Masayuki; Sakurai Takayasu; Kuroda Tadahiro

来源：IEICE TRANSACTIONS ON ELECTRONICS, 2007, E90C(4): 829-835.

DOI：10.1093/ietele/e90-c.4.829

• low power
• daisy chain
• inductive coupling
• wide bandwidth

A daisy chain of current-driven transmitters in inductive-coupling complementary metal oxide semiconductor (CMOS) links is presented. Transmitter power can be reduced since current is reused by multiple transmitters. Eight transceivers are arranged with a pitch of 20 mu m in 0.18 mu m CMOS. Transmitter power is reduced by 35% without sacrificing either the data rate (1 Gb/s/ch) or BER (< 10(-12)) by using a 4-transmitter daisy chain. A coding technique for efficient use of daisy chain transmitters is also proposed. With the proposed coding technique, additional power reduction can be achieved.

• 出版日期2007-4