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ST FDA803S User Manual Download Page 11

8

Board schematic

The 

Figure 6

 shows the schematics of the “6038-506.20 v1.0 FDA803S DEMO SA“ board.

Figure 6. 

6038-506.20 v1.0 FDA803S DEMO SA schematic

I2C_SCL

I2

S

_S

C

L

I2

S

_W

S

I2C_SDA

C7

4.7uF

C6

10nF

1

F1

1

F2

1

F3

1

F4

EN1

EN2

CH1+

CH1-

SPEAKER CONNECTOR

J1

I2S_SCL

I2S_WS

I2S_SDA1

I2S_SDA2

2

4

6

8

10

1

3

5

7

9

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

J10

20x2 p2.54mm M Horiz.

CD/DIAG1

I2C_SCL

Vbatt

I2C_SDA

HWMUTE

C5

100pF

VCCP

VCCN

GND_PWR

AVdd

DVdd

E

N

1

E

N

2

HWMUTE

TP5
OUT1+

TP8
OUT1-

I2

S

_S

D

A

1

R4

0R

R3

0R

R2

0R

Le GND (fila con nr. pari) DEVE STARE IIN BASSO SUL PCB !!

I2

S

_S

D

A

2

CH1-

CH1+

R13

0R NM

I2S_SCL
I2S_WS
I2S_SDA1
I2S_SDA2
NC
GND

I2C_SCL

I2C_SDA
GND
CD/DIAG
VBAT
EN1
EN2
EN3
EN4
HWMUTE
GPIO1
GPIO2
GPIO3
GPIO4

GPIO2

GPIO3

GPIO4

R1

0R

CD/DIAG2

R6

10K

Vbus

PCB NOTE:Place all these components near J10 connector

MINI A2 STD CONNECTOR

1-
3-
5-

39-

37-

35-

J10 silkscreen

...-

...-

CD/DIAG1

CD/DIAG2

C12
1uF

R5

10K

R14

0R

OUT1+

22

VCC1+

23

VCC1+

24

GND1+

21

GND1-

20

VCC1-

17

VCC1-

18

OUT1-

19

N

C

3

D

V

dd

30

S

G

nd

4

32

E

na

bl

e1

27

E

na

bl

e2

26

CD/Diag1

11

D1V8SVR

2

DGSVR

1

I2Cdata

6

I2Cclk

5

I2

S

da

ta

O

U

T

7

I2

S

da

ta

IN

8

I2

S

cl

k

9

I2

S

w

s

10

S

G

nd

1

13

A

V

dd

16

A

5V

S

V

R

15

A

G

S

V

R

14

HWMute

4

UR5T

NC

31

N

C

29

S

G

nd

3

28

CD/Diag2

12

S

G

nd

2

25

SLUG

33

U1

FDA903S

TP4
CH1+

TP7
CH1-

G

N

D

_D

IG

G

N

D

_P

W

R

G

N

D

_S

H

LD

G

N

D

_A

NA

TP9

GND

D2

BZT52C2V7T-7

Vbus

POWER SUPPLY BLOCK

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

12

13

13

14

14

15

15

16

16

J8

8x2 p2.54mm M Horiz.

I2C_SCL
I2C_SDA

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

12

13

13

14

14

15

15

16

16

J9

8x2 p2.54mm F Horiz.

BUSES EXP CONNECTORS

C25

1uF

C24

100

nF

VCCP

C34

1uF

C33

100

nF

C2933

nF

C3033

pF

C2847

0uF

4.7uH

L3

D1

SM6T22CAY

C26

4.7uF

C19

100pF

C20

10n

F

C22

100pF

C21

10n

F

VCCN

Vbatt

AVdd

BLM2

BLM18BD102SN1

DVdd

CLOSE TO AVDD PINS

CLOSE TO DVDD PINS

CLOSE TO VCCP

J5

TP1

VCC

TP2

GND

2.7V VBUS GENERATION

I2C_SCL
I2C_SDA

I2S_SCLconn
I2S_WSconn
I2S_SDA1conn
I2S_SDA2conn

I2S_SCLconn
I2S_WSconn
I2S_SDA1conn
I2S_SDA2conn

10uH

L2

C32

10n

F

C23

10n

F

BLM1

BLM18BA220SN1

I2S_SCLconn

I2S_WSconn

I2S_SDA1conn

I2S_SDA2conn

R7

10K

R8

10K

R9

10K

R15

10K nm

R16

10K nm

R17

10K nm

TP6
CD/DIAG2

TP3

CD/DIAG1

C1

TBDNM

C2

TBDNM

C3

TBDNM

C4

TBDNM

C8

TBDNM

C9

TBDNM

C10

TBDNM

C11

TBDNM

R10

4K7 NM

R12

4K7 NM

C13
100pF

C18
100pF

C17
100pF

C31
100pF

C14
10nF

C15
4.7uF

C16
1uF

CLOSE TO VCCN

C2747

0uF

NM

1

F5

1

F6

10uH

L1

J2

R18

2.2K

Vbatt

R20

0R NM

R11

0R NM

R19

0R

UM2999

Board schematic

UM2999

 - 

Rev 1

page 11/21

Summary of Contents for FDA803S

Page 1: ...903S device s performance For any other information and deeper details refer to the FDA803S and FDA903S datasheets Evaluation board for FDA803S and FDA903S power amplifiers UM2999 User manual UM2999 R...

Page 2: ...only be ordered with the FDA903S mounted on it The ordering information is shown in Table 1 Table 1 Ordering information Order code Device mounted on the board EVAL FDA903S SA FDA903S UM2999 Ordering...

Page 3: ...ndling the product s must have electronics training and observe good engineering practice standards This evaluation board kit does not fall within the scope of the European Union directives regarding...

Page 4: ...ngle channel Class D amplifier able to deliver up to 10 W 14 4 V at 4 based on the FDA903S or FDA803S and is intended to demonstrate the device capabilities Figure 1 Top view Figure 2 Bottom view UM29...

Page 5: ...A2 board To PC USB Vbat optional R146 I2S ext Optical In R12 R7 R13 Bottom side VCC FDA903 Demo SA Extender board MiniA2 Mini A2 J7 JP1 4 settings required for audio source selection For information o...

Page 6: ...the I2C address of the device by suitably removing R7 or and R6 and adding R15 or and R16 However no HW modification is required to set the I2C addresses if the GUI is used through the Mini A2 board...

Page 7: ...k must be provided by the signal source 3 Load the device file dev provided by ST 4 Load the default register setting file cfg if available If no cfg file is available the configuration set in the dev...

Page 8: ...d board MiniA2 manual for details Since the Extend board MiniA2 has R7 mounted by default shorting I2S_SDA1 to I2S_SDA2 remove R7 in case the FDA903S is mounted on the board and if the I2S_SDA2 is use...

Page 9: ...eft of the GUI panel start blinking Menu Settings serial port select the proper COM port Menu Settings I2C Setup configure the proper I2C address by clicking the button Find Device Address Figure 4 I2...

Page 10: ...n I2S clock present Click the buttons channel conf followed by Write all to apply the settings loaded from the FDAx03S_I2Cbest_Setting cfg file Click the PLAY button Figure 5 Channel configuration UM2...

Page 11: ...N 8 I2Sclk 9 I2Sws 10 SGnd1 13 AVdd 16 A5VSVR 15 AGSVR 14 HWMute 4 UR5T NC 31 NC 29 SGnd3 28 CD Diag2 12 SGnd2 25 SLUG 33 U1 FDA903S TP4 CH1 TP7 CH1 GND_DIG GND_PWR GND_SHLD GND_ANA TP9 GND D2 BZT52C2...

Page 12: ...C X7R Capacitor 10 nF 10 25 V 0603 C0603S103K3RACAUTO 2 C7 C15 SMD MLCC X7R Capacitor 4 7 F 10 25 V 0805 CGA4J1X7R1E475K125AC 2 C12 C16 SMD MLCC X7R Capacitor 1 F 10 50 V 1206 CGA5L3X7R1H105M160AB 2 C...

Page 13: ...R7 R8 R9 SMD chip resistor 10 K 1 75 V 0 1 W 0603 CRCW060310K0FKEB 1 R18 SMD chip resistor 2 2 K 1 150 V 0 125 W 0805 CRCW08052K20FKEA 5 TP1 TP2 TP3 TP6 TP9 TH Test Point terminal Assembly 1 04 mm 20...

Page 14: ...10 Board layout Figure 7 Assembly Top Figure 8 Top layer UM2999 Board layout UM2999 Rev 1 page 14 21...

Page 15: ...Figure 9 Layer 2 Figure 10 Layer 3 UM2999 Board layout UM2999 Rev 1 page 15 21...

Page 16: ...Figure 11 Bottom layer Figure 12 Assembly Bottom UM2999 Board layout UM2999 Rev 1 page 16 21...

Page 17: ...Revision history Table 3 Document revision history Date Version Changes 22 Mar 2022 1 Initial release UM2999 UM2999 Rev 1 page 17 21...

Page 18: ...ion 5 3 1 1 Connectors and connections 6 3 2 Board options 6 4 Startup sequence 7 5 Quick start guide 8 5 1 Hardware connection 8 6 GUI setup 9 7 Device setup for playback 10 8 Board schematic 11 9 Bi...

Page 19: ...List of tables Table 1 Ordering information 2 Table 2 Bill of materials 12 Table 3 Document revision history 17 UM2999 List of tables UM2999 Rev 1 page 19 21...

Page 20: ...i A2 board 5 Figure 4 I2C setup 9 Figure 5 Channel configuration 10 Figure 6 6038 506 20 v1 0 FDA803S DEMO SA schematic 11 Figure 7 Assembly Top 14 Figure 8 Top layer 14 Figure 9 Layer 2 15 Figure 10...

Page 21: ...s and ST assumes no liability for application assistance or the design of purchasers products No license express or implied to any intellectual property right is granted by ST herein Resale of ST prod...

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