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AC209N Mask版本标准原理图(20110429)


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电阻R101不能省,RTCVDD分压电阻取值: 有时钟和闹钟功能时,R103为120K,R102为100K 无时钟和闹钟功能,省外部E2prom方案时,R103 为360K,R102为300K JP1

01根据RTCVDD是否选择电池供电跳线

FM收音 PCB Layout注意事项: 1、FM芯片尽量远离主控 和替他IC 2、FM外围的元器件必须 靠近FM芯片放置 3、FM的天线在PCB板上的走线尽量短 走线宽度需一致 4、FM芯片芯片的GND需单点接地,最好 是电源入口处 5、FM芯片需大面积铺地 ,信号线从FM芯片 引脚两边走线尽量 不要走于FM正面和背面

MUTE 功能焊接选择: R301 高MUTE 功放 15K 低MUTE 功放 NC

R302 NC 3.3K

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注:原理图中红色注释说明设计时需特别注意
C103 105 C101 105/10uF
有推耳机功能时,C101为10uF 无推耳机功能时,C101为105

V_BAT
RTCVDD分压电路中 C104需贴近芯片引脚放置 U201 R103 120K/360K RTCVDD L201 100nH C104 105 R102 100K/300K C203 18PF ANT

C201 105 FMROUT

R203 FM_L 1K R204 FM_R

VMCU
R301 15K/NC PA_MUTE R302 NC/3.3K LOUT+ U301

VMCU
C308 104

Y101 32.768K

RTCVDD
R101 2M

+1.8V

C102 105 HPVDD DACR DACL

VCOM DACVDD RTCVDD OSC32KI OSC32KO DAC_MUTE USBDP USBDM

JP101

FM_CLK FM_DAT

1 2 3 4 5 6 7 8

GPIO1 GPIO2 GND GPIO3 GND GND FM_ANT ROUT GND LOUT GND GND SCLK VDD SDA RCLK
RDA5807SP/BK1080

16 15 14 13 12 11 10 9

FM33
FM_R FM_L C204 104

FMLOUT C202 105

1K

1 2 3 4

Shutdown GND VoLP VDD NS4249 VoLN INLN GND NC
NS4249

Hp-IN GND VoRP VDD VoRN INRN AB/D Bypass

16 15 14 13 12 11 10 9

C307 220uF/10V

XI

IIC_CLK R201 1K FM_CLK IIC_DAT FM_DAT R202 1K FM_OSC R105 NC/3.3K C206 15P~100P C206根据调试的结果选择 电容值的大小 XI

LOUT+ LOUT-

1 2

J301 LSPK

ROUT+

48 47 46 45 44 43 42 41 40 39 38 37

U101 C203和L201取值: C203 RDA5807 NC BK1080 18pF SD_DAT SD_CMD SD_CLK LCD_COM4 IIC_DAT IIC_CLK PHIN LCD_SEL R106 3.3K +1.8V C108 104 FM_OSC AD_Key0 LINEIN L201 NC 100nH

LOUTLPF_L C304 224 R303 51K

5 6 7 8

ROUTR304 51K PA_AB/D C305 105 C306 224 ROUTROUT+ LPF_R

+3.3V

VMCU 1 2 3 4 5 6 7 8 9 10 11 12 VDDIO LDO5V VSSIO P23 P24 P25 P26 P27 P33 P32 P31 P30

HPVDD DACR DACL DACVSS VCOM DACVDD RTCVDD OSC32KI OSC32KO WKUP USBDP USBDM

C105 105 C106 105 AUXL/TX AUXR FMLOUT FMROUT LCD_COM3 LCD_COM2 LCD_COM1 LCD_COM5

P22 P21 P20 P34 P02 P03 P04 DVDD P05 P06 P07 VSSIO

36 35 34 33 32 31 30 29 28 27 26 25

FM33 +3.3V
U202 R108 NC R109 NC FM_R FM_L L202 56nH

L204

+3.3V

600R@100MHZ

ANT

1 2 3 4 5 6 7 8

ROUT LOUT NC VCO_LF VCO_LN GND NC RFIN
CL6017G

GND VDD SCLK SDIO OSC GND NC GND

16 15 14 13 12 11 10 9

FM_CLK C205 FM_DAT 104 XI

R105为LINEIN检测方式选择电阻 R105 有LINEIN检测脚 NC 无LINEIN检测脚 3.3K R105 PCBLa yout时必须贴近 FM放置,地也必须用FM的地

2 1

J304 RSPK

R509 510R

LPF_R R307 DAC_MUTE

J302

FM33
U204 C208 104 E201 FM_R FM_L

VPP P17 P16 P15 P14 P13 P12 P11 P10 P01 P00 VDDIO

13 14 15 16 17 18 19 20 21 22 23 24

C

R108和R109电阻取值大小
屏型号 1号屏 2号屏 3号屏 4号屏 5号屏 6号屏 7号屏 8号屏 9号屏 10号屏 11号屏 12号屏 屏型号选择和电阻取值 R109值 R108值 20K 1% NC 20K 1% 200K 1% 20K 1% 91K 1% 20K 1% 56K 1% 20K 1% 36K 1% 20K 1% 24K 1% 20K 1% 16K 1% 20K 1% 11K 1% 20K 1% 7.5K 1% 20K 1% 4.32K 1% 20K 1% 2K 1% NC 0R 电压值 3.30V 3.00V 2.71V 2.43V 2.12V 1.80V 1.47V 1.17V 0.90V 0.58V 0.30V 0.00V

AC209N_48PIN

+3.3V
VPP/IR LCD_S7 LCD_S6 LCD_S5 LCD_S4 LCD_S3 LCD_S2 LCD_S1 LCD_S0 PA_MUTE PA_AB/D C107 104

LCD_SEL为屏选择(P04 为ADC口) R108和R109取不同阻值,产生不 同电压值来选择不同屏。电阻值 建议取100K左右

C210 104

U203

ANT

1 2 3 4 5

FM_CLK FM_DAT FM_L FM_R

1 2 3 4 5 6 7 8

DVDD GND CMODE RFIN GND NC SCLK NC SDIO PWR-ON LOUT XTALN ROUT XTALP GND AVDD
KT0830

16 15 14 13 12 11 10 9

ANT ANT L203 100nH

VCC ALO ARO AGND RFI

SDA SCL GND XCLK INT

10 9 8 7 6

FM_DAT FM_CLK XI R205 10K

2 4 3 1

LPF_R PHIN LPF_L

R305 100R

C302 10uF

DACR DACL

Q301 9014

100K/10K R306 100R C303 10uF C301 105/10uF Q302 9014 R510 LPF_L

Phone Jack

C

FM33
C309 224 LIN_R LINEIN C310 LIN_L ANT 224

510R
方案一: 功放有MUTE 时,MUTE 电路省掉 Q301,Q302,R307,C301,C304,C306都去掉 方案二: 功放无MUTE 时,增加MUTE 电路,如原 理图设计,R307和301参数值以调试为准 电阻R509和R510根据功放的输出功率 选择是否需要

L205 180nH

C207 100P

QN8035SANA

J303

FM33
XI LINEIN Jack C209 104

2 4 3 1

R308 4.7K R309 4.7K

AUXR AUXL/TX

L301 600R@100MHZ

MCU
+3.3V

FM Receiver
VMCU
R602 L601 33uH NC/2R7 D601 1N5817

PA、Earphone,LINEIN

+3.3V
R401 22K 1% AD_Key0

LCD502

Power指示灯 0V 0.4V
R402 3K 1%

LCD_S0 D502 Red

0.7V
R403 6.2K 1%

1V
R404 9.1K 1%

1.3V
R405 15K 1%

1.7V
R406 24K 1%

2.0V
R407 33K 1%

2.3V
R408 51K 1%

2.7V
R409 100K 1%

3.0V
R410 220K 1%

FM指示灯

LCD_S1 D503 Red

S407 P/P,FM_Scan,Mode

C401 NC/100P

SD指示灯

LCD_S2 SD D504 Red

A B C D E F G COM1 COM2 COM3 COM4 COM5

12 11 8 6 7 10 9 1 2 3 4 5

LCD_S0 LCD_S1 LCD_S2 LCD_S3 LCD_S4 LCD_S5 LCD_S6

VMCU
BL501 R502 100R

R601 2.7R

USB5V
J602 USBDM USBDP

U601 C601 104 R501 LCD_S7 C603 100uF/10V

3

VIN VOUT 2

C602 104

1 2
10K

1 2 3 4 5 6
USB

S410 Play_Mode/LINEIN

S406 NEXT/快进/CH+

S405 PREV /快退/CH-

1

S404 NEXT/V+/CH+

S408 Mode

S401 V-

S402 V+

S409 EQ

USB指示灯

LCD_S3 D510 Red

LCD_COM1 LCD_COM2 LCD_COM3 LCD_COM4 LCD_COM5

S403 PREV/V-/CH-

VSS
LN2351/PJ501

Q501 9014

+5V
J601 LCD屏的背光驱动电路 5V DC D602 1N5822

V_BAT
R603 2R7 R605 33R SW601 SW-DIP

C604 100uF/10V

VMCU

LineIN指示灯

LCD_S4 D511 Red LCD4_8

B
U602 IR

MP3指示灯 +3.3V
U401

BT601 3.4V~4.2V R604

LCD_S5 D512 Red 0R

B

1

2

3

1 2 3 4 +3.3V

A0 A1 NC GND
24C01

VCC WP SCL SDA

8 7 6 5

无屏方案时状态灯
IIC_CLK IIC_DAT LED501 LED502

JJ68216

Power

GND

VCC

IR

LED503

VPP/IR

+3.3V
R411 4.7R C403 NC/105 SD_CMD

SD_CLK SD_DAT

9 1 2 3 4 5 6 7 8 10 11 12

J401

D2 D3/CS CMD/DI VSS VDD CLK VSS D0/DO D1 CD WP SHEET
SD

A B C D E F G H COM1 COM2 COM3 COM4
LED-3_1

11 7 4 2 1 10 5 3 12 9 8 6

LCD_S0 LCD_S1 LCD_S2 LCD_S3 LCD_S4 LCD_S5 LCD_S6 LCD_S7 LCD_COM1 LCD_COM2 LCD_COM3 LCD_COM4

A B C D E F G COM1 COM2 COM3 COM4 COM5

1 2 3 4 5 6 7 8 9 10 11 12

LCD_S0 LCD_S1 LCD_S2 LCD_S3 LCD_S4 LCD_S5 LCD_S6 LCD_COM1 LCD_COM2 LCD_COM3 LCD_COM4 LCD_COM5 LED4_8B

A B C D E F G H COM1 COM2 COM3 COM4

11 7 4 2 1 10 5 3 12 9 8 6

LCD_S0 LCD_S1 LCD_S2 LCD_S3 LCD_S4 LCD_S5 LCD_S6 LCD_S7 LCD_COM1 LCD_COM2 LCD_COM3 LCD_COM4

USB

LED-4_8S

LED为播放状态灯 D508

II

SD

MP3 MHz

LED为播放状态灯 D509

LED为播放状态灯 D501

+3.3V
Red

R507 470R

LCD_COM5

+3.3V
Red

LCD_S7

+3.3V
Red

R503 470R

LCD_COM5

ADKEY,SD,IR,E2prom
A

3位半LED

小4个8 LED

大4个8 LED
A

备注:屏的型号以实物为准,以上视图只是参考用

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