Title :
A 14.6th-order 3.456GHz transmit baseband filter in 110nm CMOS for millimeter-wave communication systems
Author :
Tokumaru, Masataka ; Ikoma, Hayato ; Yamada, Y. ; Okamoto, K. ; Yamamoto, Akiyasu ; Shirakawa, Y.
Author_Institution :
Panasonic Corp., Moriguchi, Japan
Abstract :
This paper presents a 1.728 Gbps transmit baseband filter for transmitters of millimeter-wave communication systems. In order to avoid the inter symbol interference, ultra wide band and very high order filter is demanded. It is impracticable to realize such a high order filter with conventional analog technique, such as gm-C filter. The proposed filter consists of a 3.456 GHz digital filter followed by an 8-bit 3.456 Gsps digital to analog converter (DAC), which occupies 0.265 mm2 in 110 nm CMOS processes. It is difficult to adjust the clock and data delay at 3.456 GHz. The DAC has a clock divider for the high speed operation. The new filter consumes 142 mW and achieves the transmit spectrum very close to the mask regulated by IEEE802.15.3c.
Keywords :
CMOS integrated circuits; digital filters; digital-analogue conversion; intersymbol interference; millimetre wave integrated circuits; radio transmitters; CMOS; bit rate 1.728 Gbit/s; digital filter; digital-to-analog converter; frequency 3.456 GHz; intersymbol interference; millimeterwave communication systems; power 142 mW; size 110 nm; transmit baseband filter; word length 8 bit; Baseband; CMOS process; Clocks; Delay; Digital filters; Digital-analog conversion; Interference; Millimeter wave communication; Transmitters; Ultra wideband technology;
Conference_Titel :
Custom Integrated Circuits Conference, 2009. CICC '09. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-4071-9
Electronic_ISBN :
978-1-4244-4073-3
DOI :
10.1109/CICC.2009.5280872
