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(1)PCM1712,1715,1710均是美国BB公司新近出品,在日本制造的分别为16、18、20比特8倍超取样的性能优良而售价都极为低廉的D/A转换集成电路。它们三者的外围电路完全一样。三者只适用于晶振为16.9344MHz或11.2896MHz的CD机。当原CD机晶振为16.9344M时,这三种IC的23脚接正5V,晶振为11.2896M时23脚接地或空。有些CD机晶振为8.6MHz可改用16.9344MHz。例如CD机DSP为CXD11××系列;KS5990、91、9210、11等,将该DSP第55脚接地(原接+5V)即可使用16.9344M的晶振。(2)《电子报》1996年第23期介绍了PCM1712的使用方法,引起
(1) PCM1712, 1715, 1710 are newly produced by the United States BB company, made in Japan, respectively, 16,18,20 bit 8 times oversampling performance and the price is very low D / A converter IC. The three peripheral circuits are exactly the same. The three are only suitable for crystal oscillator is 16.9344MHz or 11.2896MHz CD player. When the original CD machine crystal oscillator is 16.9344M, 23 feet of these three IC is then 5V, the crystal is 11.2896M when 23 feet grounded or empty. Some CD machine crystal oscillator can be used instead of 16.9344MHz 8.6MHz. For example CD machine DSP CXD11 × × series; KS5990,91,9210,11, etc., the first 55 feet of the DSP ground (the original connection + 5V) can use 16.9344M crystal. (2) “News” 1996 twenty-third introduced the use of PCM1712 caused