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Open AccessArticle

A Low-Voltage Multi-Band ZigBee Transceiver

by Zhiqun Li 1,2,*, Yan Yao 1,2, Zengqi Wang 1,2, Guoxiao Cheng 1,2 and Lei Luo 1,2
1
Institute of RF-& OE-ICs, Southeast University, Nanjing 210096, China
2
Engineering Research Center of RF-ICs and RF-Systems, Ministry of Education, Southeast University, Nanjing 210096, China
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(12), 1474; https://doi.org/10.3390/electronics8121474
Received: 27 October 2019 / Revised: 29 November 2019 / Accepted: 3 December 2019 / Published: 4 December 2019
(This article belongs to the Section Circuit and Signal Processing)
This paper presents a low-voltage ZigBee transceiver covering a unique frequency band of 780/868/915/2400 MHz in 180 nm CMOS technology. The design consists of a receiver with a wideband variable-gain front end and a complex band-pass filter (CBPF) based on poles construction, a transmitter employing the two-point direct-modulation structure, a Ʃ-Δ fractional-N frequency synthesizer with two VCOs and some auxiliary circuits. The measured results show that under 1 V supply voltage, the receiver reaches –93.8 dBm and –102 dBm sensitivity for 2.4 GHz and sub-GHz band, respectively, and dissipates only 1.42 mW power. The frequency synthesizer achieves –106.8 dBc/Hz and –116.7 dBc/Hz phase noise at 1 MHz frequency offset along with 4.2 mW and 3.5 mW power consumption for 2.4 GHz and sub-GHz band, respectively. The transmitter features 2.67 dBm and 12.65 dBm maximum output power at the expense of 21.2 mW and 69.5 mW power for 2.4 GHz and sub-GHz band, respectively.
Keywords: ZigBee; low-voltage; transceiver; multi-band; CMOS ZigBee; low-voltage; transceiver; multi-band; CMOS
MDPI and ACS Style

Li, Z.; Yao, Y.; Wang, Z.; Cheng, G.; Luo, L. A Low-Voltage Multi-Band ZigBee Transceiver. Electronics 2019, 8, 1474.

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