《MP3维修资料（炬力方案）：ACU7503电路原理图.pdf》由会员分享，可在线阅读，更多相关《MP3维修资料（炬力方案）：ACU7503电路原理图.pdf（1页珍藏版）》请在三一文库上搜索。
1、12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:6- Oct- 2006 Sheet of File:C:Documents and Settingsdick桌面ACU75xx.ddbDrawn By: GPIO_G0 GPIO_B4 GPIO_B5 ICERST- ICEEN- VCC NGND ICEDI ICECK ICEDO VDD RB- CE2- CE1- D7 AVCC VREFI AVDD HOSCI HOSCO VBAT GPIO_B0 GPIO_B2 GND VCC LRADC1 USBD
2、M USBDP AOUTR AOUTL AGND MICIN VMIC VCC URESRST- FMINL FMINR D0 D1 D2 D3 D4 D5 D6 FM_CLK VDD MRD- MWR- GND FM_DAT CLE ALE C30 474 C21 104 + C29 47uF C9 224 AVCC C10 224 AVDD Y1 24MHz C18 15pF C17 15pF HOSCO HOSCI C3 224 C2 224 VCC C1 224 VDD The connection between NGND and GND should be as short as
3、possible. GND RCTL VCC VDD AGND R1390K 1% R13 1M 1% C32 10uF USBVDD CE5- CPU MODULE R2 10K 1% VDD C33 0.1uF USBVDD GPO_A0 GPO_A1 GPO_A2 CE3- CE4- C16 100pF LXVDD LXVCC GND C20 104 RST- R12 10K 5% C11 224 VCC VCC GNDAGND VDDFB RESET# 47 USBDM 5 USBDP 4 USBGND 3 URES 2 UVCC 1 USBVDD 6 PAVCC 7 AOUTR 8
4、AOUTL 9 PAGND 10 VRDA 11 MICIN 12 VMIC 13 FMINL 14 FMINR 15 AGND 16 AVCC 17 AVDD 19 VDD 20 VREFI 18 VCC 24 HOSCI 25 VDDFB 23 LRADC1 22 HOSCO 26 BAT 27 VCC 21 GPIOB0 28 GPIOB2 29 GND 31 LXVDD 30 NGND 32 LXVCC 33 GPIOG0 37 CE5# 36 CE2# 34 CE1# 35 VDD 38 GPIOB4 45 GPIOB5 46 R/B# 39 GPOA1 40 GPOA2 41 GP
5、OA0 42 ICEEN# 43 ICERST# 44 VCC 48 GND 55 D7 49 D6 50 D5 51 D4 52 D3 53 D2 54 D1 56 D0 57 MWR# 58 MRD# 59 CLE 60 ALE 61 GPIOC1 62 GPIOC0 63 VDD 64 ACU7503 U1 ACU7503 VBAT DC5V C12 224 + C34 47u VIN 3 G 1 VOUT 2 U5 XC6206P302M USBPOWER BATTERY BAT1 1xAAA +C35 10uGND VCC DC- DC L2 18uH DCR2.20V, no ke
6、y pressed KEYMODULE Place these capacitors in parallel. The smaller, the closer to FM module. C23 104 FMEN AVCC R15 1M5 5% R16 2M 5% +C39 47uF L6 100M600 DCR0.2ohm C38 103 C37 102 C36 101 AGND FMVCC FM_DAT FM_CLK FMINL FMINR AGND FM_ANT R11 47K 5% FMVCC R10 47K 5% FMVCC FMVCC + C4010uF + C41 10uF R1
7、4 10K 5% ANT 1 MPX 2 R_OUT 3 L_OUT 4 GND 5 VCC 6 WR 7 BUSMOD 8 CLK 9 DATA 10 J3 JFR- 104 AGND Q1 P- MOS FM MODULE GPO_A2 ICERST- ICEEN- ICEDI ICECK ICEDO 1 2 3 4 5 J1 CON5 ICE MODULE USBPOWER VBAT R36 100K 5% D41N4148 USBPOWER Q2 MOSFET N B 1 C 3 E 2 T1 MMBT2222NPN R35 100K 5% VCC R34 10K 5% VCC D0
8、D1 D2 D3 D4 D5 D6 D7 MWR- ALE CLE CE1- MRD- VCC C7 224 VCC VCC 12 CLE 16 ALE 17 WE 18 WP 19 I/O0 29 I/O1 30 I/O2 31 I/O3 32 VSS 13 VSS 36 I/O4 41 I/O5 42 I/O6 43 I/O7 44 SE 6 R/B 7 RE 8 CE1 9 VCC 37K9K1G08UOM CE2 10 U3 K9K1G08U0M CE2- C8 224 RB- NAND FLASH R8 1K 5% VCC D0 D1 D2 D3 D4 D5 D6 D7 MWR- A
9、LE CLE CE3- MRD- VCC C14 224 VCC VCC 12 CLE 16 ALE 17 WE 18 WP 19 I/O0 29 I/O1 30 I/O2 31 I/O3 32 VSS 13 VSS 36 I/O4 41 I/O5 42 I/O6 43 I/O7 44 SE 6 R/B 7 RE 8 CE1 9 VCC 37K9K1G08UOM CE2 10 U4 K9K1G08U0M CE4- C15 224 RB- R9 1K 5% VCC Short R4 and R5 when the Nand flash U3 has dual- CEs; leave them unconnected when it has sigle CE- . In U4, do it as the same. R40R/NC R6 0R/NC R5 0R/NC R7 0R/NC www.MyD