Title :
A digital 2.4-GHz transmitter for ZigBee application
Author :
Li Li ; Wei-Xin Gai ; Bo-Han Wu ; Ya-Ming Zhang ; Te Han
Author_Institution :
Dept. of Microelectron., Peking Univ., Beijing, China
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
This paper presents the design of a digital 2.4 GHz transmitter for ZigBee application. Low power and high frequency precision is realized by the proposed TDC in ADPLL. Tradeoff between loop bandwidth and data rate is avoided by building an all pass path from data input to DCO output, and no mismatch will happen between low pass and high pass paths. In this design, the bandwidth is kept below 200 KHz while the data rate is set to be 2 Mbps. The maximum deviation from ideal frequency is 63 KHz with TDC quantization error consideration.
Keywords :
Zigbee; digital phase locked loops; radio transmitters; ADPLL; TDC quantization error; Zigbee application; all-digital phase locked loop; bit rate 2 Mbit/s; data rate; digital transmitter; frequency 63 kHz; high frequency precision; loop bandwidth; low power precision; time to digital convert; Bandwidth; Delay; Frequency modulation; Simulation; Transmitters; Zigbee;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4673-2474-8
DOI :
10.1109/ICSICT.2012.6467905
