Wolfson Audio Card Schematic Diagram

SPDIF_INPUT DC IN (+5V)

+5V

AIF MCLK

WM8804 1:1 Digital Interface Transceiver with PLL SPDIF_OUTPUT

+5V

Speak Out

+5V +3.3V

L/R

GPIO Header (P1 26pin)

WM 5102

LINE IN 3 POLE JACK

IIC / SPI / RESET / GCLK / LDO_EN......

Audio Hub CODEC with Voice Processor DSP LINE OUT 3 POLE JACK

PCM

HEADSET MIC

WM7210 Top Port Digital Silicon Microphone

MIC

PDM Out

PCM Header(P5 8pin)

Raspberry Pi Board

+3.3V

Expand Audio Class-D Ampifier WM9082

Embest

COMPANY: TITLE:

Block Diagram

DRAWN: REV:

CHECKED:

1.01

DATE:

APPROVED:

20130723

SHEET:

1

OF

1

10K 10K 10K 10K

R17 R18 R19 R24 DBVDD1

10K

CIF1ADDR[2]

CIF1ADDR [2] CIF1_SCLK [3] CIF1_SDA [3]

L13 CIF1ADDR K12 CIF1SCLK K11 CIF1SDA

[3] CIF2_SS CIF2_MISO [3] [3] CIF2_MOSI [3] CIF2_SCLK

L11 CIF2SS K9 CIF2MISO M13 CIF2MOSI L12 CIF2SCLK

RST_5102 LDO_EN

[3] [3]

E13 RESET F11 LDOENA

MCLK_1 MCLK_2

[3] [3]

H13 MCLK1 F12 MCLK2

R11

AIF1_BCLK [3] AIF1_LRCLK [3] AIF1RX_DAT [3]

33R

IRQ

GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 AIF1TXDAT

J13 AIF1BCLK J12 AIF1LRCLK J11 AIF1RXDAT

AIF2TXDAT AIF3TXDAT

K5 AIF2BCLK L8 AIF2LRCLK M9 AIF2RXDAT

AIF2BCLK [5] AIF2LRCLK [5] AIF2RXDAT [5]

R15

AIF3BCLK [2] AIF3LRCLK [2] AIF3RXDAT [2]

33R

TDO

F13

NIRQ [3]

K13 L7 K3 K10 G10

GPIO_1 [3] GPIO2 [6] GPIO3 [2,7] GPIO_4 [3] GPIO_5 [3]

J8

AIF1TX_DAT[3]

L6

AIF2TXDAT [5]

L4

AIF3TXDAT [2]

33R

R12

SPKCLK [3] SPKDAT [3]

B8 HPOUT1L A8 HPOUT1R

L5 AIF3BCLK M5 AIF3LRCLK K4 AIF3RXDAT

HPOUT1L[6] HPOUT1R[6]

A13 HPOUT1FB1/MICDET2 B13 MICDET1/HPOUT1FB2 B12 HPDETL A12 HPDETR

D3 IN1LP E3 IN1LN/DMICCLK1 E2 IN1RP E1 IN1RN/DMICDAT1

[2] [2] [6] [6]

K6

L10 SPKCLK K8 SPKDAT

H12 SLIMCLK H11 SLIMDAT

DUT_SLIMCLK DUT_SLIMDAT A_IN1LP A_IN1LN/DMICCLK1 A_IN1RP A_IN1RN/DMICDAT1

TDO

A_IN2LP A_IN2LN/DMICCLK2 [6] A_IN2RP A_IN2RN/DMICDAT2 [2,6]

C2 IN2LP C1 IN2LN/DMICCLK2 D2 IN2RP D1 IN2RN/DMICDAT2

A_IN3LP [6] A_IN3LN/DMICCLK3 A_IN3RP [2,6] A_IN3RN/DMICDAT3

A2 IN3LP A1 IN3LN/DMICCLK3 B2 IN3RP B1 IN3RN/DMICDAT3

JACKDET

HPOUT1FB1/MICDET2 [6] MICDET1/HPOUT1FB2 [6] HPDETL [6] HPDETR [6]

R2

E10

0R

JACKDET [6]

A6 HPOUT2L B5 HPOUT2R B6 HPOUT2FB

HPOUT2L [6] HPOUT2R [6] A_OUT2FB [2]

A4 EPOUTP A5 EPOUTN

EPOUTP EPOUTN

H2 SPKOUTLP H1 SPKOUTLN

SPKOUTLP [5] SPKOUTLN [5]

L2 SPKOUTRP L1 SPKOUTRN

SPKOUTRP[5] SPKOUTRN[5]

AIF3LRCLK [2] AIF3RXDAT [2] CIF1SCLK [3] CIF1SDA [3] GPIO4

[3]

P1

P2

A_IN1LP[2]

Expand Header J7 HEADER2X8_2MM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

A_IN1LN/DMICCLK1 [2]

A_IN3RP[2,6]

DC_3V3

+5V

P3

P4

A_IN2RN/DMICDAT2 [2,6]

WM5102_CSP137 WM5102ECS/R A_OUT2FB [2]

R25

U1-A M12 TRST K7 TMS L9 TCK M11 TDI

TRST TMS TCK TDI

10K

DNP R13

GND

P5

AIF3TXDAT[2] AIF3BCLK [2] PDMOUT_DAT PDMOUT_CLK

[3] [3]

R8 0R

GPIO3 [2,7]

Embest

COMPANY: TITLE:

WM5102_I/O

DRAWN: REV:

CHECKED:

1.01

DATE:

APPROVED:

20130723

SHEET:

1

OF

6

DC_3V3

DBVDD1 U11 TXS0102DCUR 7 2

VCCBVCCA GND

8 B1 1 B2

CIF1SCLK [2] CIF1SDA [2]

OE

3

R46

6

10K

5 A1 4 A2

CIF1_SCLK [2] CIF1_SDA [2]

DC_3V3 DBVDD1 U7 TXB0108RGYR DC_3V3 19 11 20 18 17 16 15 14 13 12

PDMOUT_CLK [2] PDMOUT_DAT [2]

VCCB

VCCA

GND

OE

B1 B2 B3 B4 B5 B6 B7 B8

A1 A2 A3 A4 A5 A6 A7 A8

DBVDD1

2 10

R72 10K

1 3 4 5 6 7 8 9

SPKCLK SPKDAT

[2] [2]

C52 0.1uF

C60 0.1uF

C62 0.1uF

C64 0.1uF

C53 0.1uF

C61 0.1uF

C63 0.1uF

C65 0.1uF

DC_3V3 DBVDD1

U8 TXB0108RGYR 19 11 20 18 17 16 15 14 13 12

[7] RST [7] LDOENA MCLK1 [5] [7] RPI_SS [7] IRQ [7] AIF1RXDAT [7] RPI_MOSI [7] RPI_SCLK1

VCCB

VCCA

GND

OE

B1 B2 B3 B4 B5 B6 B7 B8

A1 A2 A3 A4 A5 A6 A7 A8

2 10

R73 10K

1 3 4 5 6 7 8 9

DC_3V3

RST_5102 [2] LDO_EN[2] MCLK_1[2] CIF2_SS [2] [2] NIRQ AIF1RX_DAT [2] CIF2_MOSI [2] CIF2_SCLK [2]

DBVDD1 U9 TXB0108RGYR 19 11

AIF1TXDAT [7] RPI_MISO [7] AIF1BCLK [7] AIF1LRCLK [7] GPIO1 [6] GPIO4 [2] GPIO5 [7] [5,7] MCLK2

20 18 17 16 15 14 13 12

VCCB

VCCA

GND

OE

B1 B2 B3 B4 B5 B6 B7 B8

A1 A2 A3 A4 A5 A6 A7 A8

2 10 1 3 4 5 6 7 8 9

R74 10K

[2] AIF1TX_DAT [2] CIF2_MISO AIF1_BCLK [2] AIF1_LRCLK [2] GPIO_1 [2] GPIO_4 [2] GPIO_5 [2] MCLK_2 [2]

Embest

COMPANY: TITLE:

WM5102_I/O

DRAWN: REV:

CHECKED:

1.01

DATE:

APPROVED:

20130723

SHEET:

2

OF

6

Digital Supply De-coupling DBVDD2

Analogue Supply De-coupling

DC_3V3

DBVDD3

VDD_1V8

Additional Supply De-coupling

VDD_1V8 DBVDD1

L8 180ohm@100MHz

C1 0.1uF

AVDD_1V8 LDOVDD

L11 180ohm@100MHz

C2 0.1uF

C15

C3 0.1uF

4.7uF

C54 0.1uF

C57 0.1uF

C9 0.1uF

Close to CPVDD pin

GND

GND

C34

L10 180ohm@100MHz

1uF

DC_3V3

GND GND

DCVDD

DBVDD3 DBVDD2 DBVDD1 LDO Output De-coupling

MICBIAS De-coupling U1-B G13 DBVDD1 M10 DBVDD1 M6 DBVDD2 M4 DBVDD3 G11 DCVDD M8 DCVDD A3 AVDD A7 AVDD M3 AVDD C9 D13 MICVDD [4] DC_5V

CPVDD LDOVDD

E11 MICVDD F1 MICVDD G1 SPKVDDL G2 SPKVDDL M1 SPKVDDR M2 SPKVDDR

C6

C7

4.7uF

4.7uF

AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND

Close to SPKVDD pin

P6

P7

P8

P9

P10

CPGND

E5 E6 E7 E8 E9 F5 F6 F7 F8 F9 G5 G6 G7 G8 G9 G12 H5 H6 H7 H8 H9 M7

MICBIAS2 [4,6] DCVDD

C8

C51

4.7uF

C5

4.7uF

4.7uF

A11 CP2VOUT C11 CP2CA B11 CP2CB VREFC

D11

C12 MICBIAS1 D12 MICBIAS2 C13 MICBIAS3

C4 4.7uF

Charge-Pump De-coupling CP1VOUTP [4] CP1VOUTN [4]

CP1CA [4]

C13

C14

4.7uF

4.7uF

GND

GND CP1CB [4]

Charge-Pump De-coupling CP2VOUT [4]

CP2CA [4]

C10

A9 CP1VOUTP A10 CP1VOUTN B9 CP1CA B10 CP1CB

C56 0.1uF

GND

B3 B4 B7 C3 C4 C5 C6 C7 C8 F2 F3 G3 H3 J3 L3

E12

C55 0.1uF

GND

J1 SPKGNDL J2 SPKGNDL K1 SPKGNDR K2 SPKGNDR LDOVOUT

MICVDD

C12

C11

4.7uF

470nF

GND CP2CB [4] DCVDD[4] CP1VOUTP[4] CP1VOUTN[4] CP1CA [4] CP1CB [4]

Reference De-coupling

CP2VOUT[4] CP2CA [4] CP2CB [4]

VREFC

[4]

VREFC[4]

C10

L9 180ohm@100MHz

MICBIAS3 [4] DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND

2.2uF

AVDD_1V8

MICBIAS1 [6] MICBIAS2 [4,6] MICBIAS3 [4]

1uF

VDD_1V8

C16

LDOVDD

WM5102_CSP137 WM5102ECS/R

Embest

COMPANY: TITLE:

WM5102_PWR

DRAWN: REV:

CHECKED:

1.01

DATE:

APPROVED:

20130723

SHEET:

3

OF

6

SPEAKER OUTPUTS RV1-A CA04F2FT5AUD010G 1 5

SPKOUTRP [2]

J3 HEADER2

1 2

6

J6 HEADER2

6

SPKOUTLP [2]

RV2-A CA04F2FT5AUD010G 1 5

1 2

+ -

3

3

+ -

SPKOUTR

SPKOUTL 2

SPKOUTLN [2]

2

SPKOUTRN [2]

4

4

CA04F2FT5AUD010G RV2-B

CA04F2FT5AUD010G RV1-B

DC_3V3

PIN Definition

CNA1 RCA_JACK

C28 3 2

19 DVDD 7 PVDD

C31 0.1uF 18

DGND PGND

GND 20

RXO

GND 17

SPDIF_OUT CNA2 RCA_JACK

C29

R57

0.1uF

210R

D1 Red 1K

10K

10K

10K

10K

SCLK(1)

Slave_Mode

CSB(5)

S/PDIF Rx

AIF Rx

2_wire

3_wire

TXO

Master_Mode

NOTE: DNP= Do Not Populated

R1

R38

4 SDOUT/GPO2 3 SDIN/HW_M 1 SCLK 5 CSB/GPO1

R7 R41 R39

0R 0R 0R

2

R42

0R

6

R20

0R

RST_8804[7]

14 BCLK 15 LRCLK 12 DOUT 13 DIN

R14

33R

AIF2BCLK [2] AIF2LRCLK [2] AIF2RXDAT [2] AIF2TXDAT [2]

16 MCLK 9 CLKOUT

R43

0R

MCLK2 [3,7] MCLK1 [3]

GPO0/SWIF_M RESETB

DNP

R50

RPI_SDA [7] RPI_SCLK[7] GPIO_A [7] GPIO_B [7]

33R

11 XIN 10 XOP

Y1 12mHz 1

3

110R

R53

2 4

3 2 1

SW_Mode

P11

R37

R32

R31

U3

8

SPDIF_INPUT

HW_Mode

WM8804GEDS/V

75R

R52

1

0.1uF

GND

1

SDIN(3)

SWIF_M(2)

R30

L4

C30 1uF

180ohm@100MHz

L3 180ohm@100MHz

10K

DC_3V3

0

C42 15pF

C43 15pF

GND GND

Embest

COMPANY: TITLE:

SPEAKER_I/O

DRAWN: REV:

CHECKED:

1.01

DATE:

APPROVED:

20130723

SHEET:

4

OF

6

line in

1uF

C58

HPOUT2R [2]

A_IN3RP [2] A_IN3LP [2]

10K C33 100pF 100pF

C20 680pF

0R

R40

GPIO1 [3]

R29

HPOUT2L [2]

2

A_OUT2L

PJ-3064A2-5GZ2S

4

CA04F2FT5AUD010G RV4-B C18 680pF

1K

R63

16R

CNA5

2 4 5 3 1

3

C32

A_OUT2R

16R

1uF

C59

RV4-A CA04F2FT5AUD010G 1 5

510K

10K R56

R28

DBVDD1

(Use A_OUT2)

R6

L7 60ohm@100MHz

R58

0R

R55

D5

PJ-3064A2-5PZ2S

D4

R47

L6 60ohm@100MHz

ESD0402V05C05

2 4 5 3 1

ESD0402V05C05

CNA3

line out

[2]

GPIO2

1K

0R

R62

510K

(Use A_IN3)

12K

R48

12K R59

R65

6

DBVDD2

Headphone out

(Use A_IN1 and A_OUT1)

MICBIAS1

MICDET1/HPOUT1FB2 [2]

Digital MIC(Use A_IN2) MICBIAS2

U2

HPOUT1L [2]

R9 10K A_IN2RN/DMICDAT2

5 [2,6]

6 C19 0.1uF

DAT VDD

GND CLK

R4

0R

R21

0R

RV3-A CA04F2FT5AUD010G 1 5

1

3

5

A_IN2RN/DMICDAT2 A_IN2LN/DMICCLK2

[2,6]

6

[2,6] C17 0.1uF

GND LRSEL DAT

GND

VDD

CLK

2

HPDETR[2] HPOUT1R [2]

3 4

6

R54 10K

WM7220IMS/V

2

4

0R

HPDETL[2]

WM7220IMS/V

GND LRSEL

R23

JACKDET [2]

U5

1

2.2K

A_IN2LN/DMICCLK2

MIC DET HPL

1 5 4

HPR GND

3 2

J1

3

MICBIAS2

1uF

C26

A_IN1RP [2]

R64

KJ351KYC

R22

2

0R

HEADSET

4

CA04F2FT5AUD010G RV3-B

[2,6]

R5

HPOUT1FB1/MICDET2 [2]

A_IN1RN/DMICDAT1 [2]

C27

0R

1uF R26

0R R45 0R

Embest

COMPANY: TITLE:

HEADSET_I/O

DRAWN: REV:

CHECKED:

1.01

DATE:

APPROVED:

20130723

SHEET:

5

OF

6

U13 RT9167A-33CB 1 VIN VOUT 5 2 GND 3 SHDN BP 4

DNP

1

2

R3 22K

R44 0R C25

C47

22uF

10uF

D2 6.2V

L5 180ohm@100MHz

C23 C46 0.1uF

470nF

DC_3V3

VDD_1V8

DC_3V3

C44 C38

C24

C21 0.1uF

470nF

C35 10uF

10uF

L1 180ohm@100MHz

1 VIN VOUT 5 2 GND 3 SHDN BP 4

R27 22K

C22 10uF

AVDD_1V8

U6 RT9167-18CB

L2 180ohm@100MHz

1 VIN VOUT 5 2 GND 3 SHDN BP 4

R16 22K

C49 10uF

GND

GND

U4 RT9167-18CB

C48 10uF

1K

F1 2A@6V

R66

J5 DC_JACK 1 2 3

DC_3V3

+5V

D3 Green

DC_5V

LDOENA [3,7] C36 0.1uF

C45

10uF

470nF GND

GND

GND

GND

C37

C39

10uF

10uF

GND

+3V3 [7]

PCM_CLK [7] 0R

PCM_FS [7]

R70

DNP

PCM_CLK [7]

RPI_SDA [5] RPI_SCLK [5] MCLK2 [3,5] [3] RST IRQ [3] LDOENA [3,7]

AIF1BCLK

+3V3 [7]

[3]

DNP R71 0R

PCM_FS [7]

R69 0R [3] AIF1LRCLK

R67 [3] AIF1RXDAT

R68 0R

PCM_DOUT[7] 0R

PCM_DIN[7] DNP

DNP R61 0R

R10

0R

R33 R34 R35

0R 0R 0R

RPI_MOSI [3] RPI_MISO [3] RPI_SCLK1 [3]

PI 26PIN(P1) J4 HEADER2X13_B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

+5V

R36

0R RPI_TX [7] RPI_RX [7] GPIO_A [5] GPIO_B [5] GPIO5 [3] GPIO3 [2] RST_8804[5] [3] RPI_SS

(socket)

PCM_CLK [7]

PCM_DIN [7]

Raspberry Pi Connection

DNP

J2 HEADER2X4 (pogo pin) 1 2 3 4 5 6 7 8

R49 0R

PCM_DIN[7] R60 0R

PCM_CLK PCM_FS PCM_DIN PCM_DOUT

R51 0R

GPIO28 GPIO29 GPIO30 GPIO31

[3]

Pin 3 Pin 4 Pin 5 Pin 6

AIF1TXDAT

RPI P5 Connection

PCM_DOUT[7]

GND

GND

PCM_FS [7] PCM_DOUT[7]

J8 HEADER3 1 2 3

RPI_TX [7] RPI_RX [7]

GND

Embest

COMPANY: TITLE:

POWER_PI_IO

DRAWN: REV:

CHECKED:

1.01

DATE:

APPROVED:

20130723

SHEET:

6

OF

6