LETTERS
Abstract: An "automatic power down" method is introduced to design a 4/5 prescaler,with the characteristic of making one of its D-flip-flops power down when it operates in divide-by-4 mode.Implemented with the TSMC 0.25μm mixed-signal CMOS process,the 4/5 MOS current mode logic prescaler is designed with this automatic power down technique.The simulation results show that the new 4/5 prescaler is immune to the "wake-up" issue and thereby retains the same maximum operating frequency as the conventional prescaler.An integer-N divider with this proposed prescaler and with the division ratio 66/67 is manufactured,and it is estimated to save more than 20% of the power compared with the conventional 4/5 prescaler.
Key words: MCML prescaler, automatic power down, frequency synthesizer
| 1 |
A power-efficient switchable CML driver at 10 Gbps Peipei Chen, Lei Li, Huihua Liu Journal of Semiconductors, 2016, 37(2): 025003. doi: 10.1088/1674-4926/37/2/025003 |
| 2 |
A fractional-N frequency synthesizer for wireless sensor network nodes Xiao Ma, Zhankun Du, Chang Liu, Ke Liu, Yuepeng Yan, et al. Journal of Semiconductors, 2014, 35(12): 125003. doi: 10.1088/1674-4926/35/12/125003 |
| 3 |
A 55 nm CMOS ΔΣ fractional-N frequency synthesizer for WLAN transceivers with low noise filters Mingyi Chen, Xiaojie Chu, Peng Yu, Jun Yan, Yin Shi, et al. Journal of Semiconductors, 2013, 34(10): 105001. doi: 10.1088/1674-4926/34/10/105001 |
| 4 |
A constant loop bandwidth fractional-N frequency synthesizer for GNSS receivers Yin Xizhen, Xiao Shimao, Jin Yuhua, Wu Qiwu, Ma Chengyan, et al. Journal of Semiconductors, 2012, 33(4): 045007. doi: 10.1088/1674-4926/33/4/045007 |
| 5 |
A fully integrated frequency synthesizer for a dual-mode GPS and Compass receiver Chu Xiaojie, Lin Min, Shi Yin, Dai F F Journal of Semiconductors, 2012, 33(3): 035004. doi: 10.1088/1674-4926/33/3/035004 |
| 6 |
A 8.75–11.2-GHz, low phase noise fractional-N synthesizer for 802.11a/b/g zero-IF transceiver Mei Niansong, Pan Yaohua, Huang Yumei, Hong Zhiliang Journal of Semiconductors, 2011, 32(6): 065003. doi: 10.1088/1674-4926/32/6/065003 |
| 7 |
A 4 GHz quadrature output fractional-N frequency synthesizer for an IR-UWB transceiver Guo Shita, Huang Lu, Yuan Haiquan, Feng Lisong, Liu Zhiming, et al. Journal of Semiconductors, 2010, 31(3): 035002. doi: 10.1088/1674-4926/31/3/035002 |
| 8 |
A 6-9 GHz 5-band CMOS synthesizer for MB-OFDM UWB Chen Pufeng, Li Zhiqiang, Wang Xiaosong, Zhang Haiying, Ye Tianchun, et al. Journal of Semiconductors, 2010, 31(7): 075001. doi: 10.1088/1674-4926/31/7/075001 |
| 9 |
A low-spurious fast-hopping MB-OFDM UWB synthesizer Chen Danfeng, Li Wei, Li Ning, Ren Junyan Journal of Semiconductors, 2010, 31(6): 065003. doi: 10.1088/1674-4926/31/6/065003 |
| 10 |
A low power automatic gain control loop for a receiver Li Guofeng, Geng Zhiqing, Wu Nanjian Journal of Semiconductors, 2010, 31(9): 095009. doi: 10.1088/1674-4926/31/9/095009 |
| 11 |
A 2-to-2.4-GHz differentially-tuned fractional- Meng Lingbu, Lu Lei, Zhao Wei, Tang Zhangwen Journal of Semiconductors, 2010, 31(7): 075007. doi: 10.1088/1674-4926/31/7/075007 |
| 12 |
A fractional-N frequency synthesizer forWCDMA/Bluetooth/ZigBee applications Zhou Chunyuan, Li Guolin, Zhang Chun, Chi Baoyong, Li Dongmei, et al. Journal of Semiconductors, 2009, 30(7): 075008. doi: 10.1088/1674-4926/30/7/075008 |
| 13 |
A fast-hopping 3-band CMOS frequency synthesizer for MB-OFDM UWB system Zheng Yongzheng, Xia Lingli, Li Weinan, Huang Yumei, Hong Zhiliang, et al. Journal of Semiconductors, 2009, 30(9): 095006. doi: 10.1088/1674-4926/30/9/095006 |
| 14 |
A Band III PLL Frequency Synthesizer Yin Yadong, Chen Jie, Wang Haiyong Journal of Semiconductors, 2008, 29(6): 1216-1222. |
| 15 |
A Low-Jitter and Low-Power Frequency Synthesizer Applied to 1000Base-T Ethernet Lu Ping, Wang Yan, Zheng Zengyu, Ren Junyan Chinese Journal of Semiconductors , 2006, 27(1): 137-142. |
| 16 |
Digital Coarse Tuning Loop for Wide-Band Fast-Settling Dual-Loop Frequency Synthesizers Liu Junhua, Liao Huailin, Yin Jun, Huang Ru, Zhang Xing, et al. Chinese Journal of Semiconductors , 2006, 27(11): 1911-1917. |
| 17 |
Shi Hao, Liu Junhua, Zhang Guoyan, Liao Huailin, Huang Ru, et al. Chinese Journal of Semiconductors , 2006, 27(4): 646-652. |
| 18 |
A CMOS Fully Integrated Frequency Synthesizer with Stability Compensation Chinese Journal of Semiconductors , 2005, 26(8): 1524-1531. |
| 19 |
Design of Down Scalers in Mixed-Signal GHz Frequency Synthesizer Chinese Journal of Semiconductors , 2005, 26(9): 1711-1715. |
| 20 |
A 2.4GHz Quadrature Output Frequency Synthesizer Chinese Journal of Semiconductors , 2005, 26(10): 1910-1915. |
Article views: 3322 Times PDF downloads: 1159 Times Cited by: 0 Times
Received: 18 August 2015 Revised: 17 April 2008 Online: Published: 01 August 2008
| Citation: |
Zeng Longyue, Zhu Siqi, Yan Yuepeng. A Novel 4/5 Prescaler with Automatic Power Down[J]. Journal of Semiconductors, 2008, 29(8): 1449-1452.
****
Zeng L Y, Zhu S Q, Yan Y P. A Novel 4/5 Prescaler with Automatic Power Down[J]. J. Semicond., 2008, 29(8): 1449.
|
WeChat ID
Journal of Semiconductors © 2017 All Rights Reserved 京ICP备05085259号-2
DownLoad: