论文部分内容阅读
一台价值数千元的CIassics牌型号为MODEL60的音频DAC解码器,使用数年后出现无声故障,故用户邀笔者维修。打开机盖,看电路板元器件,用料确实很好,是属于极品级的产品。它采用M65810FP集成块作数字接收,有同轴和光纤输入接口;数字滤波器是集成电路PMD100,可以HDCD解码;D/A(数/模)转换芯片是著名的BB公司的PCM1702K,每声道各用一块;I/V变换和低通滤波器LPF是单运放集成块OP27和
A value of thousands of dollars CIassics brand model MODEL60 audio DAC decoder, the use of silent noise after a few years, so the user invites the author repair. Open the lid, see the circuit board components, the material is indeed very good, is the most excellent product. It uses M65810FP manifold for digital reception, coaxial and optical input interface; digital filter is the integrated circuit PMD100, HDCD decoding; D / A (digital / analog) converter chip is the famous BB company PCM1702K, per channel Each with a piece; I / V transform and low pass filter LPF is a single op amp manifold OP27 and