ＡＳ２５３１电话芯片的应用夏伟锋ＡＳ２５３１电话芯片是集振铃、拨号、通话三功能于一体的新型器件。本文以ＡＳ２５３１为基础介绍一种符合我国电话机国标的单芯片电话机电路。该电路经过验证满足有关国标、符合入网要求。（本刊已在今年第６期将该芯片的多种性能、管... AS2531 phone chip applications Xiawei Feng AS2531 phone chip is set ring, dial-up, call the new features in one of the three devices. In this paper, AS2531 based on the introduction of a national standard phone in China’s single-chip telephone circuit. The circuit has been verified to meet the national standard, in line with the network requirements. (This issue has been in the sixth of this year the chip a variety of performance, ...