硬件2-參考設(shè)計(jì)圖reference design v

AP8248A2IO Pin

n

OtherFunction

復(fù)用為EFUSEVDD 注：所有PWC口均可做IR輸

TECHNOLOGY 山景集成電路 AP8248A2_Soundbar_ReferenceDe DRAWINGNO:2019-04-

A

1

3OF B8不能支持頻率高于100KHz的信號(hào)（配置為輸出&輸入都不能作為高速控制

D

S123123

32324

SDPDSDP DGND

IOVDD B1

R16C

10uFC643

B0A16A15A14A13A12A11A10A9A8

需取消電阻R182K 需增加電阻R1

仿真接口.需預(yù)留插座接

R28R29

AGNDLN供電范圍：3.3V~5.0V。

負(fù)載電容在晶體spec推薦值集成電容范圍為6pF~21pF可調(diào)，SDK默認(rèn)為濾波電容請(qǐng)靠

R30R31R22R35

VOL-音效模(RXD)(RXD)如果需要支持 模式下 調(diào)音，需要預(yù)留引出另外一組UART接口通過USB轉(zhuǎn)串口小板連接到電腦調(diào)音B AGND/DGNDPcbLayout需獨(dú)立分地

0.1uFDGNDDGND0.1uF

MCU+5VMCU+5V

ADC 線

R79R23R38R39

閃 MICV+MIC其TECHNOLOGY 山景集成電 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輸入，DACX可以設(shè)置 上傳給A

TECHNOLOGY

A

AP8248A2_SOUNDBAR_Reference

2019-04-

DRAWING

1

5OF 3221

L

AUDIOLINEOUT線

C101

R89

R83

AUDIOLINEIN線

R2R41R2R41

JK1

DAC最大輸出幅度為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 山景集成電 1 1

AP8248A2_Soundbar_Reference

2019-04-

DRAWING

1

6OF C

C26

FMC

R24R33

R32C22C24

U6VCCSDAALOSCL AROGNDGNDXCLKRFIINT

R47R26

C55

只輸出12MHzclk，不能輸出32.768KHz TECHNOLOGY A

A AP8248A2_Soundbar_Reference

DRAWING

1

7OF ogInputDigital

R44

R46

1

C19

R17R17

BSPROUTPRGND

C45

C

OUTNRBSNRGND

C440.22uF

OUT2X10W4歐姆BTL

1uF

R65

BSPLOUTPLGND

OUTNL

R20R20

R69

BSNL

C43

2B

NC

PVCCPVCCAVCC

BNC

100K

0R

NC

TECHNOLOGY 山景集成電 A AP8248A2_Soundbar_Reference

DRAWING

1

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 山景集成電 A AP8248A2_Soundbar_Reference

2019-04-

DRAWING

1

10OF 5 5

7LED7LED

12345DGND1415