A CMOS based low power digitally controlled oscillator design with MOS varactor

2019 ◽  
Vol 100 (3) ◽  
pp. 565-575
Author(s):  
Shweta Dabas ◽  
Manoj Kumar
Keyword(s):  
Low Power ◽  
Digitally Controlled ◽  
Digitally Controlled Oscillator ◽  
Mos Varactor

scholarly journals An ultra low-power digitally controlled oscillator using novel Schmitt-trigger based hysteresis delay cells

2011 ◽  
Vol 8 (8) ◽  
pp. 589-595 ◽  
Author(s):  
Nasser Erfani Majd ◽  
Mojtaba Lotfizad ◽  
M.B Ghaznavi-Ghoushchi ◽  
Arash Abadian
Keyword(s):  
Low Power ◽  
Schmitt Trigger ◽  
Ultra Low Power ◽  
Digitally Controlled ◽  
Digitally Controlled Oscillator

scholarly journals Design of Low Power 6-bit Digitally-Controlled Oscillator (DCO)

2014 ◽  
Vol 6 (2) ◽  
pp. 297-305
Author(s):  
Mohammad Anisur Rahman ◽  
◽  
Habibah Mohamed ◽  
Mamun Ibne Reaz ◽  
Sawal Hamid Md Ali ◽  
...  
Keyword(s):  
Low Power ◽  
Digitally Controlled ◽  
Digitally Controlled Oscillator

scholarly journals Optimum Layout of Low Power LC-Based Digitally Controlled Oscillator for Bluetooth Low Energy in a 4G/5G LTE System

2021 ◽  
Vol 11 (3) ◽  
pp. 1059
Author(s):  
Min-Su Kim ◽  
Sang-Sun Yoo
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Phase Noise ◽  
Supply Voltage ◽  
Low Energy ◽  
Superior Performance ◽  
Bluetooth Low Energy ◽  
Digitally Controlled ◽  
Digitally Controlled Oscillator ◽  
Low Phase Noise

This paper presents an optimum layout method of a low-power, digitally controlled oscillator (DCO) for a Bluetooth low-energy (BLE) transceiver in a 4G/5G LTE system. For the optimal LC-based DCO layout, three different layouts, including different gm cell locations and an Al metal layer, were implemented, and performance was compared and verified for BLE application. The implemented neck DCO (NDCO), where the gm cell is located in the neck of the main inductor, showed superior performance compared to other layouts in terms of low phase noise and low power consumption. The designed NDCO had a low phase noise of −116.1 dBc/Hz at 1 MHz with a 0.5 mW power consumption. The supply voltage and oscillation frequency range were 0.8 V and 4.7–5.7 GHz, respectively, and the NDCO designed with the optimal layout had a good figure-of-merit of −192.6 dBc/Hz.

Sign in / Sign up

Export Citation Format

Share Document