Title :
A 13-Bit 9GS/s RF DAC-based broadband transmitter in 28nm CMOS
Author :
Jianhong Xiao ; Binning Chen ; Tae Youn Kim ; Ning-Yi Wang ; Xi Chen ; Tai-Hong Chih ; Raviprakash, K. ; Hua-Feng Chen ; Gomez, Raquel ; Chang, Juice Y. C.
Author_Institution :
Broadcom Corp., Irvine, CA, USA
Abstract :
A 13-bit current-steering DAC-based transmitter prototype is integrated into a 28nm CMOS SoC for broadband communication systems. The DAC uses a segmented structure with a focus on high speed, low noise, and low distortion. A novel LDO is also proposed for better spur tolerance in hostile SoC environments. The transmitter achieves > 70dBc SNDR within the 50-1000MHz cable band for single QAM channel transmission at 1GHz. The DAC can run up to 9GS/s with IM3 > 45dBc up to 4.4GHz. It consumes 360mW with a 1.8V supply and a footprint of 1.16mm2.
Keywords :
CMOS integrated circuits; broadband networks; digital-analogue conversion; quadrature amplitude modulation; radio transmitters; system-on-chip; CMOS; LDO; QAM; RF DAC; SoC; broadband communication systems; broadband transmitter; channel transmission; frequency 50 MHz to 1000 MHz; low distortion; low noise; size 28 nm; Broadband communication; CMOS integrated circuits; Clocks; Frequency measurement; Noise; System-on-chip; Transmitters; DAC; RF DAC; current-steering; transmitter;
Conference_Titel :
VLSI Circuits (VLSIC), 2013 Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-5531-5
