硬件2-参考设计图reference design v

AP8248A2IO Pin

n

OtherFunction

复用为EFUSEVDD 注：所有PWC口均可做IR输

TECHNOLOGY 山景集成电路 AP8248A2_Soundbar_ReferenceDe DRAWINGNO:2019-04-

A

1

3OF B8不能支持频率高于100KHz的信号（配置为输出&输入都不能作为高速控制

D

S123123

32324

SDPDSDP DGND

IOVDD B1

R16C

10uFC643

B0A16A15A14A13A12A11A10A9A8

需取消电阻R182K 需增加电阻R1

仿真接口.需预留插座接

R28R29

AGNDLN供电范围：3.3V~5.0V。

负载电容在晶体spec推荐值集成电容范围为6pF~21pF可调，SDK默认为滤波电容请靠

R30R31R22R35

VOL-音效模(RXD)(RXD)如果需要支持 模式下 调音，需要预留引出另外一组UART接口通过USB转串口小板连接到电脑调音B AGND/DGNDPcbLayout需独立分地

0.1uFDGNDDGND0.1uF

MCU+5VMCU+5V

ADC 线

R79R23R38R39

闪 MICV+MIC其TECHNOLOGY 山景集成电 A AP8248A2_Soundbar_Reference

DRAWING

1

4OF D

4 4

1C411

33

D 32

52

ENSW3

3DC插

SS14

C

3

4VOUT

123

VOUT

SD

ADJ/GND

R103

DGND

B

上 接

B43 61

DAC2.0ch输入，DACX可以设置 上传给A

TECHNOLOGY

A

AP8248A2_SOUNDBAR_Reference

2019-04-

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1

5OF 3221

L

AUDIOLINEOUT线

C101

R89

R83

AUDIOLINEIN线

R2R41R2R41

JK1

DAC最大输出幅度为C99

100R/100M

C100

R76R76R77 DGND

C109

C108

+5V

4

VCCOUTB5-INB5

R82

SDASCLARCCEC

D4C75

U7SGM722

R80

C103

ACLOCK-CLOCK+DATA0-DATA0-SHT0+1-DATA1-SHDATA1+

BC

DATA2- DATA2+

1 1

_I2C_SDAR52

TECHNOLOGY 山景集成电 1 1

AP8248A2_Soundbar_Reference

2019-04-

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1

6OF C

C26

FMC

R24R33

R32C22C24

U6VCCSDAALOSCL AROGNDGNDXCLKRFIINT

R47R26

C55

只输出12MHzclk，不能输出32.768KHz TECHNOLOGY A

A AP8248A2_Soundbar_Reference

DRAWING

1

7OF ogInputDigital

R44

R46

1

C19

R17R17

BSPROUTPRGND

C45

C

OUTNRBSNRGND

C440.22uF

OUT2X10W4欧姆BTL

1uF

R65

BSPLOUTPLGND

OUTNL

R20R20

R69

BSNL

C43

2B

NC

PVCCPVCCAVCC

BNC

100K

0R

NC

TECHNOLOGY 山景集成电 A AP8248A2_Soundbar_Reference

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8OF

R90R90

PVCC

PVCC

BSPR

OUTPRGNDOUTNR

BSNRGNDBSPL

SUB+

1011

OUTPLGNDOUTNLBSNLPVCCPVCC

R11

AVCC

B

B TECHNOLOGY A

A AP8248A2_Soundbar_Reference

2

DRAWING

1

9OF IISInputDigitalC

202017 242324231314

12C

9 98 8

B

R542.2ohmR54

67 673435 3435 2 21 1

++

1 100N(S)100N(S)

0ohm

TECHNOLOGY 山景集成电 A AP8248A2_Soundbar_Reference

2019-04-

DRAWING

1

10OF 5 5

7LED7LED

12345DGND1415