AC1074-LED显示方案标准原理图V1.0

123456

E201

FM收音可支持RDA5807FP，RDA5807M

BK1080，KT0830，RTC6207

FM_R

FM_L

R205

10K

R204

C201

FM_L/R

224

D

C

烧写IO必须拉出测试点

烧写IO：

P00、P01、P02、VPP、VDDIO、

VSSIO、LDO5V、USBDM、USBDP

AUX_L/R

FM_L/R

LED7

LED6

IR

LED5

LED4

1

2

3

4

5

6

7

8

9

10

11

12

U101

DACL

DACR

VDDIO

LDO5V

VSSIO

P23/P24

P25

DACVSS24

VCOM23

RTCVDD22

USBDP21

USBDM20

P2219

P2118

P26

P2017

P27

P0216

VPP/P46

P17

P0515

P0014

P16

P0113

+3.3V

VMCU

C101

105

C104

104

DACL

DACR

AC1094_SSOP24

VBAT

R101

2M

R102

NC

RTCVDD分压电阻取值：

有时钟和闹钟功能时，R101为100K，R102为120K

无时钟和闹钟功能，省外部E2prom方案时，R101

为2M，R101为NC

RTCVDD

C102

105

VCOM

RTCVDD

USBDP

C103

USBDM105

SD_DATIIC_DAT

SD_CMD

SD_CLKIIC_CLK

AD_Key

R103

100K

LED1

LED2

LED3

LINEIN

ANT

C205

105

FM_CLK

FM_DAT

FM_L

FM_R

10K

IIC_CLKR2021K

IIC_DATFM_DAT

R2031K

U203

1LOUT10

GND

2ROUT9

FMIN

3GND8

GND

4VDD7

SCLK

5RCLK6

SDIO

ANTIN

FM_CLK

FM_DAT

RDA5807M

U204

1

GPIO1

GPIO316

2

NC

AVDD15

3

GND

GND14

4

ANTIN

LOUT13

5

ROUT12

GND

6

GND11

SCLK

7DVDD10

SDIO

8VIO9

RCLK

RTC6207

C211

4P

RTC_OSCO

FM_CLK

FM_L

FM_R

FM33

XI

FM33

RTC_OSCO

C207

FM_L

FM_R

105

VMCU

R302

470K

R303

100K

R301

U301

1

MUTE

OUT+8

2

Bypass

GND7

3

IN+

VDD6

4OUT-5

IN-

PHINMUTE

2K

C301

105

C305

224

Q301

9014C

R304

10K

R305

10K

2

4

3

1

LPF_R

LPF_L

J302

LINEINJack

LPF_L/R

8002

C304

104

R30647K

C306NC

LIN_R

LINEIN

LIN_L

R311

4.7K

R312

4.7K

AUX_L/RJ301

PhoneJack

备注：

若LINEIN和FM都要双声道，那设计时LINEIN接P24和P25

FM输出直接推耳机和接功放输入端

VMCU

C302

104

2

4

3

1

LPF_R

PHIN

LPF_L

C303

NC/100uF/6.3V

J303

1

2

RSPK

R307

100R

C311

10uF

DACR

DACL

R308

100R

C312

10uF

D

C

Y202

32.768KC210

15P

KT_OSCI

Y203

32.768KC212

4P

RTC_OSCI

MCUFMReceiverPA、Earphone，LINEIN

R206100M

B

IR

U401IR

+3.3V

+3.3V

U402

1VCC8

A0

2WP7

A1

3SCL6

NC

IIC_CLK

4SDA5IIC_DAT

GND

AD_Key

C401

NC/100P

VMCU

+3.3V

R602

R601

2.7R

L601

33uH

C603

100uF/10V

NC/2R7

D601

1N5817

U601

VIN

2

VOUT

VSS

LN2351/PJ501

R409

22K

S402

SD401

LED501

R401

+3.3V

9

1

2

3

4

5

6

7

8

3K

Next/V+

D2

D3/CS

CMD/DI

VSS

VDD

CLK

VSS

D0/DO

D1

3

1

S403

R411

4.7R

SD_CMD

C601

104

R402

7

C/S

LED7

6.2K

PREV/V-

6

C/S

LED6

S404

SD_CLK

5

C/S

LED5

R403

C402

NC/105

4

C/S

LED4

9.1K

P/P

3

C/S

SD_DAT

LED3

S405

2

C/S

LED2

R404

R412

3.3K

1

C/S

LED1

15K

Mode

10

11

12

CD

WP

SHEET

+5VV_BAT

J601

R603

D602

2R7

1N5822SW601

BT601SW-DIP

3.4V~4.2V

SD

LED-4_8S-7P

5VDC

USB5V

USBDM

USBDP

VMCU