Name
Title | ||
|---|---|---|
An 8Ω, 1.4W, 0.0024% THD+N Class-D Audio Amplifier with Bridge-Tied Load Half-Side Switching Mode Achieving Low Standby Quiescent Current of 660μA |
Abstract | ||
|---|---|---|
In this paper, a Class-D audio amplifier (CDA) with bridge-tied load half-side switching (BTLHS) mode is presented. The BTLHS mode through a digital pulse width subtracter (DPWS) enables a low quiescent current (I
<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Q</sub>
) by suspending the output switching in idle condition while maintaining high linearity with seamless zero-crossings and mode change. The CDA achieves 0.0024% THD+N, I
<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Q</sub>
of 0.66mA, and 95% peak efficiency on an 8Ω-speaker. The chip was fabricated in a 0.18-μm CMOS process, and it occupies 0.83mm
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>
. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1109/VLSICircuits18222.2020.9162781 | 2020 IEEE Symposium on VLSI Circuits |
Keywords | DocType | ISSN |
Class-D audio amplifier,CDA,BTLHS mode,digital pulse width subtracter,CMOS process,bridge-tied load half-side switching mode,standby quiescent current,power 1.4 W,current 0.66 mA | Conference | 2158-5601 |
ISBN | Citations | PageRank |
978-1-7281-9943-6 | 0 | 0.34 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ji-Hun Lee | 1 | 5 | 3.92 |
| Gyeong-Gu Kang | 2 | 2 | 2.83 |
| Min-Woo Ko | 3 | 0 | 1.35 |
| Gyu-Hyeong Cho | 4 | 401 | 76.39 |
| Hyun-Sik Kim | 5 | 40 | 13.29 |