A 40 nm CMOS analog front end with enhanced audio for HSPA/EDGE multimedia applications

A 40 nm CMOS analog front end with enhanced audio for HSPA/EDGE multimedia applications

A 40 nm CMOS analog front end (AFE) supporting HSPA/EDGE multimedia and enhanced audio applications is reported. The AFE consists of hi-fi audio and high-performance peripheral and auxiliary subsystems. Circuit techniques that enable a 200 μA audio RX path and a Class-AB driver with -80 dB THD are d...

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Hauptverfasser: Xicheng Jiang, Min Gyu Kim, Cheung, F., Fang Lin, Hui Zheng, Jianlong Chen, Chen, A., Cheung, D., Abdelfattah, K., Seong-Ho Lee, Hanson Huang, Kasichainula, K., Yonghua Cong, Jiangfeng Wu, Chang-Hyeon Lee, Chih, G., Yun Tu, Brooks, T. L., Jiang, E., Hongwei Kong, Chaoyang Zhao, Keskin, M.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Baseband
CMOS integrated circuits
Headphones
Monitoring
Multimedia communication
System-on-a-chip
Universal Serial Bus
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Zusammenfassung:A 40 nm CMOS analog front end (AFE) supporting HSPA/EDGE multimedia and enhanced audio applications is reported. The AFE consists of hi-fi audio and high-performance peripheral and auxiliary subsystems. Circuit techniques that enable a 200 μA audio RX path and a Class-AB driver with -80 dB THD are discussed. Audio playback and capture paths achieve 105 dB and 85 dB SNR, respectively.
ISSN:1930-8833
2643-1319
DOI:10.1109/ESSCIRC.2012.6341343