本帖最后由 CoolBird007 于 2019-4-27 12:58 编辑
第八版了,听感会对得住各位烧友的。
拒绝DCDC,拒绝PLL,拒绝电荷泵,拒绝耦合、输出电容。
打造自已满意的极致纯净的播放器。
补充一点,PCB上的晶振频率33.8688,应该为22.5792.
耳机推荐32欧阻抗的大耳机。
[详细的元件清单和排序过的PCB文件在23楼.]]]
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固件PCB说明
没有成品,自已装了一台听着。
详细的元件清单,不清楚的跟贴。。我会详细说明。
"Bill Of Material For V8_Y.PCB"
"On 26-Apr-2019 at 17:28:07"
"Comment","Pattern","Quantity","Components"
"","SIP3","1","CON1"//SWD 下载线接口,烧写程序用,从方孔开始,依左到右分别是接下载线的GND,SWCLK,SWDIO
"0","3527","1","R8"//数摸地公共接口,可以直接短接,也可以焊0欧电阻。最好分开两根线直接连接到电池的负极上。
"100nF","C0603","20","C3 C5 C6 C7 C8 C10 C11 C12 C13 C14 C17 C18 C20 C23 C25 C27"
,,,"C28 C30 C31 C37"
"10K","R0603","4","R1 R2 R5 R6"
"10uF/16V","A3216","7","C1 C2 C21 C24 C26 C40 C42" //钽
"1117-3.3V","SOT-223","1","U2" //建议使用SPX1117
"1117-5V","SOT-223","2","U5 U7"//建议使用SPX1117
"120","R0603","2","R21 R22"
"20K","R0603","7","R7 R15 R16 R17 R18 R19 R20"
"2200pF","470PF","2","C33 C36" //WIMA 电容 100V,
//可以按自已调音风格换其它电容,如需高频12K以上更平坦可以使用1000PF,同时470P要换成330PF
"220UH","SMDRH73","1","L1" //屏蔽电感,可以使用10欧电阻代替
"220uF/16V","SMD-CT-7343","11","C4 C9 C15 C16 C19 C22 C29 C32 C38 C39 C41"//钽
"33","8P4R_0603","2","RP1 RP2" //阻排8P4R_0603
"22.5792","OSC","1","X1" //5*7有源贴片晶振
"4.7K","R0603","2","R3 R4"
"470PF","470PF","1","C34"
//可以按自已调音风格换其它电容,如需高频12K以上更平坦可以使用330PF,同时2200P要换成1000PF
"470pF","470PF","1","C35"
//可以按自已调音风格换其它电容,如需高频12K以上更平坦可以使用330PF,同时2200P要换成1000PF
"6.8K","R0603","6","R9 R10 R11 R12 R13 R14"
"CON","IDC-2","1","J2" //2P 座。不用就直接焊电池正极线上去。
"DC5","DC5","1","J1" //DC座,实际使用什么粗径跟你的充电器配合,天知道你用什么充电器。
"ERJI","ERJI4","1","J3" //音频插座 4节耳机插座 立体声音频插座 3.5mm口径
看图自已搜,如需提供网购地址可以私信。
"IMP809T","SOT-23","1","U1" //复位芯片
"LED","LED-K","1","LED1" //红绿两 {MOD}LED 3mm直径
"OPA2134","SOP8A","1","U6"
"PCM1732U","SO28W","1","U4"
"STM32F105RCT6","LQFP64_M","1","U3"
"BONUN","MYBONUN","1","BONUN1" //
// 进口日本ALPS 大拨轮摆动开关 SLLB310400 贴片3脚 带固定柱点
"SW","SW","1","SW1" //船型开关,照图买。。说不清楚。
"TPA152","SOP8A","2","U8 U9"
TF自弹卡座一个。
右上那个超大蓝 {MOD}电容3300UF/16V,可以按自已有的电容,能装下去尽量大容量就可以了。
下面是按弃号重新排序的PCB,焊接的时候对着焊就行。
没有,散件也没有,就两块芯片自已玩的。
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