手工制作的MP3播放器電路及資料

相關(guān)下載：
1、 最新版firmware (Aug 14,'00: R0.93) 包含源文件

firmware

2、Control tools (Jul 2, '00) 

tools

材料清單

Item  Part Number  Part Value      Qty  Mfr.       Description
----  -----------  --------------  ---  ---------- ----------------------------
1     U1           AT90S8515         1  Atmel      AVR micro-controller
2     U2           PST600J           1  Mitsumi    Reset generator
3     U3           MAS3507D          1  Micronas   MP3 decoder
4     U4           DAC3550A          1  Micronas   Audio D/A converter
5     Q1           2SA1300           1  Toshiba    Low saturation, high hfe
----  -----------  --------------  ---  ---------- ----------------------------
6     Q2,Q3,Q4     RN1205            3  Toshiba    With built-in resisters
7     D1           1GWJ42            1  Toshiba    Typical shottky diode
8     D2,D3,D4     1SS319            3  Toshiba    Typical swiching diode
9     D5           NSPG320BS         1  Nichia     Super high bright
10    Y1           CST6.00MGW        1  Murata     Ceramic resonator w/caps
----  -----------  --------------  ---  ---------- ----------------------------
11    Y2           14.725MHz         1             Crystal resonator
12    C1           470uF             1             Alminium
13    C2           330uF             1             Low ESR, OS-CON
14    C3,C4,C7     4.7uF             3             Tantalum
15    C5,C6        220uF             2             Alminium
----  -----------  --------------  ---  ---------- ----------------------------
16    C8,C12,C18,  100nF             6             Chip sized ceramic
      C19,C20,C21
17    C9,C10       470pF             2             Chip sized ceramic
18    C15,C16,C11  1nF               3             Chip sized ceramic
19    C17          10nF              1             Chip sized ceramic
20    C13,C14      22pF              2             Chip sized ceramic
----  -----------  --------------  ---  ---------- ----------------------------
21    L1           22uH (1A)         1             Low resistance
22    L2,L3        10uH              2             Axial leaded
23    R1,R4,R5,R6, 10k              14             Chip sized
      R7,R8,R9,
      R10,R14,R16,
      R17,R18,R19,
      R28
24    R2           300               1             Chip sized
25    R3,R12,R26   100k              3             Chip sized
----  -----------  --------------  ---  ---------- ----------------------------
26    R11          18k               1             Chip sized
27    R15          3.3k              1             Chip sized
28    R20,R21,R24, 1.5k              5             Chip sized
      R25,R30
29    R13          680               1             Chip sized
30    R27          68k               1             Chip sized
----  -----------  --------------  ---  ---------- ----------------------------
31    R22,R23      47                2             Chip sized
32    SW1,SW2,SW3, B3F-3100          6  Omron      Push button switch
      SW4,SW5,SW6
33    P1           HEC3300-01-020    1  Hoshiden   DC jack (Voltage class 1)
34    P2           22pin header      1
35    P3           HSJ0887-01-510    1  Hoshiden   3.5Dia stereo jack
----  -----------  --------------  ---  ---------- ----------------------------
36    P4           6pin header       1
37    P5           B2B-EH            1  JST        
38                 CN015R-3113-0     1  Yamaichi   SmartMedia socket
39                 Battery Box       1
數(shù)據(jù)存儲用的是通用閃存卡（SmartMedia），廣泛用于數(shù)碼相機、MP3。見下圖