A 8 Gb/s 4-PAM transmitter in 0.18 μm CMOS technology

Author

Kim, Hyunkyo ; Lee, Jungjoon ; Jung, Jikyung ; Burm, Jinwook

Author_Institution

Dept. of Electron. Eng., Sogang Univ., Seoul

Volume

03

fYear

2008

fDate

24-25 Nov. 2008

Abstract

A low power 8 Gb/s multilevel pulse amplitude modulation (PAM) transmitter is proposed. 4-PAM enables transmitter to transmit data twice more than binary signaling. Also pre-switching the output driver´s current sources decrease the glitches of the output, which helps transmitter to operate at a high speed. The transmitter transmits output by current-mode instead of voltage-mode to increase switching speed of driver. The transmitter is composed of output driver, 4:1 multiplexer, and encoder. Also 2⁷-1 pseudo random bit sequence (PRBS) generator was designed on-chip to provide built-in self test (BIST) operation. The transmitter is designed in 0.18mum CMOS technology and achieves 8 Gb/s, a data eye opening with a height Gt 160 mV with 1.8 V supply voltage. The output driver and entire transmitter consume only 98 mW at 8 Gb/s.

Keywords

CMOS integrated circuits; automatic testing; low-power electronics; pulse amplitude modulation; transmitters; CMOS technology; bit rate 8 Gbit/s; built-in self test operation; data eye opening; encoder; low power multilevel pulse amplitude modulation transmitter; multiplexer; output driver; pseudorandom bit sequence generator; size 0.18 mum; switching speed; voltage 1.8 V; voltage-mode; Amplitude modulation; Bandwidth; Built-in self-test; CMOS technology; Driver circuits; Integrated circuit technology; Multiplexing; Pulse modulation; Transmitters; Voltage; 4-PAM; CMOS; current-mode; low-power; transmitter;

fLanguage

English

Publisher

ieee

Conference_Titel

SoC Design Conference, 2008. ISOCC '08. International

Conference_Location

Busan

Print_ISBN

978-1-4244-2598-3

Electronic_ISBN

978-1-4244-2599-0

Type

conf

DOI

10.1109/SOCDC.2008.4815728

Filename

4815728