1. A modular 16NM Direct-RF TX/RX Embedding 9GS/S DAC and 4.5GS/S ADC with 90DB Isolation and Sub-80PS Channel Alignment for Monolithic Integration in 5G Base-Station SoC
- Author
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John G. O'Dwyer, Brendan Farley, Ronnie De La Torre, Bob Verbruggen, Pat Lynch, Padraig Kelly, John C. McGrath, Christophe Erdmann, Roberto Pelliconi, Daire Breathnach, Vaz Bruno Miguel, Kinnerk Ryan, and Peng Lim
- Subjects
business.industry ,Computer science ,Blocking (radio) ,020208 electrical & electronic engineering ,020206 networking & telecommunications ,02 engineering and technology ,Modular design ,Phase-locked loop ,Base station ,0202 electrical engineering, electronic engineering, information engineering ,Radio frequency ,Nyquist frequency ,business ,Field-programmable gate array ,Computer hardware ,Communication channel - Abstract
This work presents direct-RF TX/RX modular tiles for monolithic integration in 16nm FinFET. The TX tile embeds 4 baseband-to-RF signal chains with 14-bit 9GS/s DACs while the RX tile provides 2 RF-to-baseband signal chains with 13-bit 4.5GS/s ADCs. Each tile includes a low-noise PLL [1] and can support full Nyquist bandwidth. The TX path demonstrates better than −67dBc ACPR when synthetizing a half-loaded band 42 and consumes 700mW. The RX path shows an EVM of 11.6% for the in-band blocking test of the 3.5GHz band and consumes 747mW. These tiles have been integrated in a 372mm2 FPGA SoC and demonstrate better than 90dB digital-to-analog isolation and sub-80ps channel alignment.
- Published
- 2018
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