电路的功能用于音响设备的放大器在进行试验时需要低失真率信号源。近来,用于音响电路的低失真率OP放大器的...
手工制作的MP3播放器电路及资料
相关下载:
1、 最新版firmware (Aug 14,'00: R0.93) 包含源文件
firmware |
2、Control tools (Jul 2, '00)
tools |
材料清单
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
数据存储用的是通用闪存卡(SmartMedia),广泛用于数码相机、MP3。见下图
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