Search Results - "Lan-Chou Cho"
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A Bluetooth Low-Energy Transceiver With 3.7-mW All-Digital Transmitter, 2.75-mW High-IF Discrete-Time Receiver, and TX/RX Switchable On-Chip Matching Network
Published in IEEE journal of solid-state circuits (01-04-2017)“…We present an ultra-low-power Bluetooth low-energy (BLE) transceiver (TRX) for the Internet of Things (IoT) optimized for digital 28-nm CMOS. A transmitter…”
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Journal Article -
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A Fully Integrated Bluetooth Low-Energy Transmitter in 28 nm CMOS With 36% System Efficiency at 3 dBm
Published in IEEE journal of solid-state circuits (01-07-2016)“…We propose a new transmitter architecture for ultra-low power radios in which the most energy-hungry RF circuits operate at a supply just above a threshold…”
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A 0.85mm2 51%-Efficient 11-dBm Compact DCO-DPA in 16-nm FinFET for Sub-Gigahertz IoT TX Using HD2 Self-Suppression and Pulling Mitigation
Published in IEEE journal of solid-state circuits (01-07-2019)“…In this paper, we propose a sub-gigahertz transmitter (TX) with a physically merged digitally controlled oscillator (DCO) and digital power amplifier (DPA)…”
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An All-Digital PLL for Cellular Mobile Phones in 28-nm CMOS with −55 dBc Fractional and −91 dBc Reference Spurs
Published in IEEE transactions on circuits and systems. I, Regular papers (01-11-2018)“…We propose a time-predictive architecture of an all-digital PLL (ADPLL) for cellular radios, which is optimized for advanced CMOS. It is based on a 1/8-length…”
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A SAW-Less GSM/GPRS/EDGE Receiver Embedded in 65-nm SoC
Published in IEEE journal of solid-state circuits (01-12-2011)“…A quad-band GSM/GPRS/EDGE receiver, implemented in 65 nm CMOS, complies with the ETSI standard without the need of external SAW filters. By exploring the…”
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Journal Article Conference Proceeding -
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A 1.2-V 37-38.5-GHz eight-phase clock generator in 0.13-μm CMOS technology
Published in IEEE journal of solid-state circuits (01-06-2007)“…A 37-38.5-GHz clock generator is presented in this paper. An eight-phase LC voltage-controlled oscillator (VCO) is presented to generate the multiphase…”
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A 33.6-to-33.8 Gb/s Burst-Mode CDR in 90 nm CMOS Technology
Published in IEEE journal of solid-state circuits (01-03-2009)“…A 33.6-33.8 Gb/s burst-mode clock/data recovery circuit (BMCDR) is presented in this paper. To reduce the data jitter and generate the high-frequency output…”
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A 50.8–53-GHz Clock Generator Using a Harmonic-Locked PD in 0.13-$\mu$m CMOS
Published in IEEE transactions on circuits and systems. II, Express briefs (01-05-2008)Get full text
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A 55nm CMOS 4-in-1 (11b/g/n, BT, FM, and GPS) radio-in-a-package with IPD front-end components directly connected to antenna
Published in 2014 IEEE Radio Frequency Integrated Circuits Symposium (01-06-2014)“…This paper presents a 55nm 4-in-1 (11b/g/n, BT, FM, and GPS) radio assembled side-by-side with a 3-metal layer integrated-passive-device (IPD) chip in a QFN40…”
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Conference Proceeding -
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Cascaded Multi-Stage Directional Coupler on Silicon-on-Insulator
Published in 2022 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR) (31-07-2022)“…We demonstrate the feasibility of a width-engineered cascaded multi-stage directional coupler on silicon-on-insulator for broadband (within 5% power variation…”
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Conference Proceeding -
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A 77/79-GHz Frequency Generator in 16-nm CMOS for FMCW Radar Applications Based on a 26-GHz Oscillator with Co-Generated Third Harmonic
Published in ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference (ESSCIRC) (01-09-2019)“…This paper presents a digitally controlled frequency generator for dual frequency-band radar system that is optimized for 16 nm FinFET CMOS. It is based on a…”
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Conference Proceeding -
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A 44GHz Dual-Modulus Divide-by-4/5 Prescaler in 90nm CMOS Technology
Published in IEEE Custom Integrated Circuits Conference 2006 (01-09-2006)“…A CMOS 44GHz divide-by-4/5 dual-modulus prescaler is presented. The scaled inductive peaking technique and the merged NOR-FF circuits are used to achieve the…”
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Conference Proceeding -
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Towards Ultra-Low-Voltage and Ultra-Low-Power Discrete-Time Receivers for Internet-of-Things
Published in 2018 IEEE/MTT-S International Microwave Symposium - IMS (01-06-2018)“…In this paper, we investigate an impact of voltage supply scaling on power consumption and performance of a new class of wireless receivers (RX) for…”
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Conference Proceeding -
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3.5mW W-Band Frequency Divider with Wide Locking Range in 90nm CMOS Technology
Published in 2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers (01-02-2008)“…The frequency divider (FD) is one of the key components in very-high-frequency (VHF) PLLs. Conventionally, injection-locked frequency divider (ILFD) , Miller…”
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Conference Proceeding -
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A SAW-less GSM/GPRS/EDGE receiver embedded in a 65nm CMOS SoC
Published in 2011 IEEE International Solid-State Circuits Conference (01-02-2011)“…Over the last decade, significant progress has been made towards increasing integration and reducing bill of material (BOM) for GSM/GPRS/EDGE cellular systems…”
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Conference Proceeding -
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A 50.8-53-GHz Clock Generator Using a Harmonic-Locked PD in 0.13- \mum CMOS
Published in IEEE transactions on circuits and systems. II, Express briefs (01-05-2008)“…A 50.8-53-GHz clock generator with a quadruplicate-harmonic-locked phase detector (PD) is presented to achieve a low spur and a low reference frequency. The…”
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A 33.6-to-33.8Gb/s Burst-Mode CDR in 90nm CMOS
Published in 2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (01-02-2007)“…A 33.6-to-33.8 Gb/s burst-mode CDR circuit is realized in 90nm CMOS technology. The LC gated VCO, the phase selector the input matching circuit, and the…”
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Conference Proceeding -
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A 0.5V 1.6mW 2.4GHz fractional-N all-digital PLL for Bluetooth LE with PVT-insensitive TDC using switched-capacitor doubler in 28nm CMOS
Published in 2017 Symposium on VLSI Circuits (01-06-2017)“…This paper proposes an ultra-low-voltage (ULV) fractional-N all-digital PLL (ADPLL) powered from a single 0.5 V supply. While its DCO runs directly at 0.5 V, a…”
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Conference Proceeding -
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A Bluetooth low-energy (BLE) transceiver with TX/RX switchable on-chip matching network, 2.75mW high-IF discrete-time receiver, and 3.6mW all-digital transmitter
Published in 2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits) (01-06-2016)“…We present a new ultra-low-power (ULP) transceiver for Internet-of-Things (IoT) optimized for 28-nm CMOS. The receiver (RX) employs a high-rate (up to 10 GS/s)…”
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Conference Proceeding