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A 60GHz CMOS multichannel wireless repeater, which converts digital data and millimeter-wave pulses without applying signal processing, is proposed for high-speed communication. A chip containing three repeaters operating at 60.48GHz, 62.64GHz and 64.8GHz frequency bands is fabricated using a 90nm CMOS process. Each channel has a 1Gbps data rate with power consumptions of 51mW and 116mW in the transmitter...
A 100Mb/s, 1.71mW DC-960MHz band impulse radio ultra-wideband (IR-UWB) receiver is developed in 1.2V 65nm CMOS. A novel auto- and cross-correlation based synchronization scheme is proposed to achieve 62.5ps step data synchronization with a 2-GHz 8-phase PLL clock generator. The developed UWB receiver with the proposed power- and area-efficient PLL achieves the low energy consumption of 17.1pJ/bit.
The following topics are dealt with: medical and vision processors; ultrawide band circuits; SRAM variability; clocking building blocks; analog circuits; advanced transceiver techniques; high speed on-die network processor clocking; RF and new wireless transceivers; advanced SRAM circuits; advanced clock generation; digital circuit resilience;low power memory and interface techniques; PLL and CDR;...
This paper presents the design of a DFE for a 2x blind ADC-based RX. The DFE is implemented in 65-nm CMOS along with a 2x blind CDR and ADC. Our measured results confirm 5Gb/s data recovery with BER less than 10-12 with a channel introducing 13.3dB of attenuation at the Nyquist frequency of 2.5GHz. Without the DFE, the BER exceeds 10-8.
A low-IF quadrature GPS receiver consisting of a VCO, mixer and variable gain LNA is implemented in 130 nm CMOS. Consuming 352 μW from a 250 mV supply, it has the lowest supply voltage for an integrated receiver reported to date. The measured noise figure is 7.2 dB with a gain of 42 dB at a 10 MHz IF frequency. At a 1 MHz offset, the VCO phase noise is -112.4 dBc/Hz, resulting in an FoM of 187.4 dBc/Hz.
This paper describes a new switching topology of a sampling mixer for SAW-less GPS (L1 band) receivers. The GPS receiver with the new mixer achieved NF 2.5dB and good blocking performance. In an alternative implementation, the mixer is stacked under a Quadrature VCO to reuse supply current. As a result, the current consumption of the GPS receiver is 11mA from 1.8V supply while maintaining blocking...
We present an integrated 900MHz receiver with 56.4dB conversion gain, 5dB NF, and -9.8dBm IIP3 using on-chip in-band feed-forward interference cancellation. The interference cancellation at baseband gives more than 13dB IIP3 improvement and makes operation from an ultra-low 0.6V supply possible. The direct-conversion receiver including baseband filters and polyphase LO filters and buffers consumes...
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