A 1.2GHz bandwidth and 88 dB gain range analog baseband for multi-standard 60 GHz applications

被引：2
|
作者：
Chen, Zhen [1 ]
Wu, Qi [1 ]
Shi, Chunqi [1 ]
Zhang, Runxi [1 ]
机构：
[1] East China Normal Univ, Inst Microelect Circuits & Syst, Shanghai 200241, Peoples R China
来源：
IEICE ELECTRONICS EXPRESS | 2020年 / 17卷 / 04期
关键词：
analog baseband (ABB); dual feedback; variable-gain amplifier (VGA); G(m)-C low-pass filter (LPF); analog and switched-capacitor tuning; digital-to-analog converter (DAC); LOW-PASS FILTER; MOBILE APPLICATIONS; TRANSCEIVER;
D O I：
10.1587/elex.17.20190742
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper proposes a 55-nm CMOS analog baseband (ABB) with wide tunable bandwidth (BW) and large tunable gain, which consists of a variable-gain amplifier (VGA) and a low-pass filter (LPF) for multi-standard 60 GHz applications. A modified dual-feedback Cherry-Hooper-based VGA achieves a large gain range of -15 similar to 73 dB. Through the analog and switched-capacitor (SC) tuning, the 8th-order G(m)-C-based LPF features a widely and continuously tunable bandwidth of 100 similar to 1200 MHz. A linear 8-bit digital-to-analog converter (DAC) is integrated for bandwidth and gain tuning. Measurement results show that the output linearity (OP1dB) is -35.5 similar to 3.8 dBm, and the noise figure (NF) is less than 21 dB when the gain is 56 dB while consuming 12 mW of power.
引用
收藏
页数：5
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