A 375 mW, 2.2 GHz signal bandwidth DAC-based transmitter with an in-band IM3 < −58 dBc in 40 nm CMOS

Author

Spiridon, Silvian ; Van der Tang, Johan ; Yan, Han ; Chen, Hua-Feng

Author_Institution

Broadcom Corp., Bunnik, Netherlands

fYear

2012

fDate

17-21 Sept. 2012

Firstpage

61

Lastpage

64

Abstract

A 40 nm DAC-based CMOS wideband transmitter (WBTX) for cable applications is presented. It has a 2.2 GHz signal bandwidth and exhibits an in-band IM3 of less than -58 dBc. The WBTX consists of a current-steering DAC with digital sinc equalization and roll-off compensation. By implementing high-speed, feed-forward pipelined digital logic, the DAC sampling rate extends to 5 GHz. The WBTX can deliver up to +11 dBm of output power while consuming only 375 mW. The WBTX occupies 1.65 mm² of area.

Keywords

CMOS analogue integrated circuits; cables (electric); digital-analogue conversion; equalisers; feedforward; pipeline arithmetic; transmitters; DAC sampling rate; DAC-based CMOS wideband transmitter; WBTX; bandwidth 2.2 GHz; bandwidth 5 GHz; cable application; current-steering DAC; digital sinc equalization; feed-forward pipelined digital logic; high-speed pipelined digital logic; in-band IM3; power 375 mW; roll-off compensation; signal bandwidth; size 40 nm; Bandwidth; CMOS integrated circuits; Clocks; Decoding; Linearity; Power demand; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

ESSCIRC (ESSCIRC), 2012 Proceedings of the

Conference_Location

Bordeaux

ISSN

1930-8833

Print_ISBN

978-1-4673-2212-6

Electronic_ISBN

1930-8833

Type

conf

DOI

10.1109/ESSCIRC.2012.6341256

Filename

6341256