Wolfson Audio Card Schematic Diagram

Embest

COMPANY:

+5V

+3.3V

GPIO Header (P1 26pin)

PCM Header(P5 8pin)

Raspberry Pi Board

DC IN (+5V)

PCM

IIC / SPI / RESET /

GCLK / LDO_EN...

+5V

+5V

+3.3V

Expand Audio Class-D Ampifier WM9082

PDM Out

WM 5102

1:1 Digital Interface

Audio Hub CODEC with Voice

Processor DSP

WM8804

Transceiver with PLL

AIF

MCLK

SPDIF_INPUT

SPDIF_OUTPUT

Top Port Digital Silicon

LINE IN

LINE OUT

WM7210

Microphone

3 POLE JACK

3 POLE JACK

HEADSET

MIC

MIC

Speak Out

L/R

Embest

COMPANY:

Expand Header

P1 P2 P3 P4 P5 A1 IN3LN/DMICCLK3 A2 IN3LP A4 EPOUTP A5 EPOUTN A6 HPOUT2L A8 HPOUT1R A12 HPDETR A13 HPOUT1FB1/MICDET2 B1 IN3RN/DMICDAT3 B2 IN3RP B5 HPOUT2R B6 HPOUT2FB B8 HPOUT1L B12 HPDETL B13 MICDET1/HPOUT1FB2 C1 IN2LN/DMICCLK2 C2 IN2LP D1 IN2RN/DMICDAT2 D2 IN2RP D3 IN1LP E1 IN1RN/DMICDAT1 E2 IN1RP E3 IN1LN/DMICCLK1 E10 JACKDET E13 RESET F11 LDOENA F12 MCLK2 F13 IRQ G10 GPIO5 H1 SPKOUTLN H2 SPKOUTLP H11 SLIMDAT H12 SLIMCLK H13 MCLK1 J8 AIF1TXDAT J11 AIF1RXDAT J12 AIF1LRCLK J13 AIF1BCLK K3 GPIO3 K4 AIF3RXDAT K5 AIF2BCLK K6 TDO K7 TMS K8 SPKDAT K9 CIF2MISO K10 GPIO4 K11 CIF1SDA K12 CIF1SCLK K13 GPIO1 L1 SPKOUTRN L2 SPKOUTRP L4 AIF3TXDAT L5 AIF3BCLK L6 AIF2TXDAT L7 GPIO2 L8 AIF2LRCLK L9 TCK L10 SPKCLK L11 CIF2SS L12 CIF2SCLK L13 CIF1ADDR M5 AIF3LRCLK M9 AIF2RXDAT M11 TDI M12 TRST M13 CIF2MOSI U1-A WM5102_CSP137 WM5102ECS/R R11 33R R15 33R R12 33R R17 10K R18 10K R19 10K R13 10K DNP R25 10K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 J7 HEADER2X8_2MM R2 0R R8 0R R24 10K TRST TMS TCK TDI AIF1_BCLK [3] AIF1RX_DAT [3] A_IN1LP [2] A_IN1LN/DMICCLK1 [2] A_IN1RP [6] A_IN1RN/DMICDAT1 [6] A_IN2LP A_IN2LN/DMICCLK2 [6] A_IN2RP A_IN2RN/DMICDAT2 [2,6] A_IN3LP [6] A_IN3LN/DMICCLK3 A_IN3RP [2,6] A_IN3RN/DMICDAT3 TDO AIF1TX_DAT[3] AIF1_LRCLK [3] AIF2BCLK [5] AIF2LRCLK [5] AIF2RXDAT [5] AIF3BCLK [2] AIF3LRCLK [2] AIF3RXDAT [2] GPIO_1 [3] GPIO2 [6] AIF2TXDAT [5] AIF3TXDAT [2] SPKOUTLN [5] SPKOUTLP [5] SPKOUTRN[5] SPKOUTRP[5] HPOUT1L[6] HPOUT1R[6] HPOUT2L [6] HPOUT2R [6] HPDETL [6] HPDETR [6] MICDET1/HPOUT1FB2 [6] HPOUT1FB1/MICDET2 [6] A_OUT2FB [2] EPOUTP EPOUTN GPIO_4 [3] GPIO_5 [3] CIF1ADDR [2] CIF1_SCLK [3] CIF1_SDA [3] DUT_SLIMCLK DUT_SLIMDAT CIF2_SS [3] CIF2_MISO [3] CIF2_MOSI [3] CIF2_SCLK [3] GPIO3 [2,7] JACKDET [6] PDMOUT_DAT [3] A_OUT2FB [2] A_IN2RN/DMICDAT2 [2,6] A_IN1LP [2] A_IN3RP [2,6] PDMOUT_CLK [3] A_IN1LN/DMICCLK1 [2] GND RST_5102 [3] LDO_EN [3] MCLK_1 [3] MCLK_2 [3] NIRQ [3] SPKCLK [3] SPKDAT[3] +5V CIF1SCLK [3] CIF1SDA [3] DC_3V3 GPIO3 [2,7] AIF3BCLK [2] AIF3LRCLK [2] AIF3RXDAT [2] CIF1ADDR[2] DBVDD1 AIF3TXDAT[2] GPIO4 [3]

Embest

COMPANY: C52 0.1uF 3 VCCA 6 OE 7 VCCB 2 GND 5 A1 4 A2 8 B1 1 B2 U11 TXS0102DCUR R46 10K R72 10K R73 10K R74 10K C53 0.1uF C60 0.1uF C61 0.1uF C62 0.1uF C63 0.1uF C64 0.1uF C65 0.1uF 2 VCCA 10 OE 19 VCCB 11 GND 1 A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9 A8 20 B1 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 U7 TXB0108RGYR 2 VCCA 10 OE 19 VCCB 11 GND 1 A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9 A8 20 B1 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 U8 TXB0108RGYR 2 VCCA 10 OE 19 VCCB 11 GND 1 A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9 A8 20 B1 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 U9 TXB0108RGYR DBVDD1 DC_3V3 CIF1_SCLK [2] CIF1_SDA [2] CIF1SDA [2] CIF1SCLK [2] DBVDD1 DC_3V3 SPKCLK [2] SPKDAT [2] PDMOUT_DAT [2] PDMOUT_CLK [2] DBVDD1 DC_3V3 CIF2_SS [2] MCLK_1[2] LDO_EN[2] RST_5102 [2] NIRQ [2] AIF1RX_DAT [2] CIF2_MOSI [2] CIF2_SCLK [2] DBVDD1 DC_3V3 AIF1TX_DAT [2] CIF2_MISO [2] RPI_MISO [7] AIF1TXDAT [7] AIF1_BCLK [2] AIF1_LRCLK [2] GPIO_1 [2] GPIO_4 [2] GPIO_5 [2] MCLK_2 [2] MCLK2 [5,7] GPIO5 [7] GPIO4 [2] GPIO1 [6] AIF1LRCLK [7] AIF1BCLK [7] AIF1RXDAT [7] RPI_MOSI [7] RPI_SCLK1 [7] IRQ [7] RST [7] LDOENA [7] MCLK1 [5] RPI_SS [7] DC_3V3 _DBVDD1

LDO Output De-coupling Digital Supply De-coupling

Analogue Supply De-coupling

Additional Supply De-coupling

Charge-Pump De-coupling Reference De-coupling Charge-Pump De-coupling MICBIAS De-coupling

Embest

COMPANY: Close to CPVDD pin Close to SPKVDD pin C15 4.7uF C6 4.7uF C7 4.7uF C4 4.7uF C5 4.7uF C8 4.7uF C13 4.7uF C14 4.7uF C12 4.7uF P6 P7 P8 P9 P10 A3 AVDD A7 AVDD A9 CP1VOUTP A10 CP1VOUTN A11 CP2VOUT B3 AGND B4 AGND B7 AGND B9 CP1CA B10 CP1CB B11 CP2CB C3 AGND C4 AGND C5 AGND C6 AGND C7 AGND C8 AGND C9 CPVDD C10 CPGND C11 CP2CA C12 MICBIAS1 C13 MICBIAS3 D11 VREFC D12 MICBIAS2 D13 LDOVDD E5 DGND E6 DGND E7 DGND E8 DGND E9 DGND E11 MICVDD E12 LDOVOUT F1 MICVDD F2 AGND F3 AGND F5 DGND F6 DGND F7 DGND F8 DGND F9 DGND G1 SPKVDDL G2 SPKVDDL G3 AGND G5 DGND G6 DGND G7 DGND G8 DGND G9 DGND G11 DCVDD G12 DGND G13 DBVDD1 H3 AGND H5 DGND H6 DGND H7 DGND H8 DGND H9 DGND J1 SPKGNDL J2 SPKGNDL J3 AGND K1 SPKGNDR K2 SPKGNDR L3 AGND M1 SPKVDDR M2 SPKVDDR M3 AVDD M4 DBVDD3 M6 DBVDD2 M7 DGND M8 DCVDD M10 DBVDD1 U1-B WM5102_CSP137 WM5102ECS/R C51 4.7uF C16 2.2uF C10 1uF C1 0.1uF C2 0.1uF C3 0.1uF C9 0.1uF C54 0.1uF C57 0.1uF C55 0.1uF C56 0.1uF C11 470nF L8 180ohm@100MHz L10 180ohm@100MHz L11 180ohm@100MHz L9 180ohm@100MHz C34 1uF GND CP1VOUTP[4] CP1VOUTN[4] CP1CA [4] CP1CB [4] CP2VOUT[4] CP2CA [4] CP2CB[4] VREFC[4] MICBIAS1 [6] MICBIAS2 [4,6] AVDD_1V8 CP1CA [4] CP1CB [4] GND GND CP1VOUTN [4] CP1VOUTP [4] MICVDD DBVDD1 GND VDD_1V8 GND LDOVDD VREFC [4] CP2CA [4] CP2CB [4] GND CP2VOUT [4] DCVDD GND DBVDD2 GND DBVDD3 DBVDD1 DBVDD2 DBVDD3 VDD_1V8 LDOVDD MICBIAS3 [4] GND DCVDD DCVDD[4] MICBIAS3 [4] MICVDD [4] DC_3V3 DC_3V3 DC_5V VDD_1V8 MICBIAS2 [4,6] AVDD_1V8

SW_Mode 1 AIF Rx SDIN(3) PIN Definition HW_Mode 0 SCLK(1) CSB(5) Slave_Mode Master_Mode S/PDIF Rx

SWIF_M(2) 2_wire 3_wire

SPKOUTL

SPKOUTR

SPEAKER OUTPUTS

+

-+

-Embest

COMPANY:

NOTE: DNP= Do Not Populated

D1 Red R52 75R R53 _110R R57 210R C42 15pF C43 15pF 1 3 2 4 Y1 12mHz 1 2 3 CNA1 RCA_JACK 1 2 3 CNA2 RCA_JACK 1 2 J6 HEADER2 1 2 J3 HEADER2 19 DVDD 7 PVDD 18 DGND 8 PGND 20 RXO 17 TXO 4 SDOUT/GPO2 3 SDIN/HW_M 1 SCLK 5 CSB/GPO1 2 GPO0/SWIF_M 6 RESETB 14 BCLK 15 LRCLK 12 DOUT 13 DIN 16 MCLK 9 CLKOUT 11 XIN 10 XOP U3 WM8804GEDS/V P11 C30 1uF R41 0R R14 33R R50 33R R30 10K R7 0R R39 0R R42 0R R43 DNP 0R R20 0R R1 1K R31 10K R32 10K R37 10K R38 10K C31 0.1uF C28 0.1uF C29 0.1uF L3 180ohm@100MHz L4 180ohm@100MHz 1 5 6 RV1-A CA04F2FT5AUD010G 2 4 3 RV1-B CA04F2FT5AUD010G 1 5 6 RV2-A CA04F2FT5AUD010G 2 4 3 RV2-B CA04F2FT5AUD010G SPKOUTLN [2] SPKOUTLP [2] SPKOUTRN [2] SPKOUTRP [2] AIF2BCLK [2] AIF2LRCLK [2] AIF2RXDAT [2] AIF2TXDAT [2] MCLK1 [3] SPDIF_INPUT SPDIF_OUT RPI_SCLK[7] RPI_SDA [7] GPIO_B [7] MCLK2[3,7] DC_3V3 DC_3V3 GND GND GND GND GND GPIO_A [7] RST_8804[7]

HEADSET

Headphone out

line in

line out

Digital MIC

Embest

COMPANY: (Use A_IN3) (Use A_OUT2)

(Use A_IN1 and A_OUT1)

(Use A_IN2) 1 MIC 2 GND 3 HPR 4 HPL 5 DET J1 KJ351KYC 4 5 3 1 2 CNA5 PJ-3064A2-5GZ2S 4 5 3 1 2 CNA3 PJ-3064A2-5PZ2S 1 _GND 5 _DAT 6 _VDD 2 LRSEL 3 GND 4 CLK U5 WM7220IMS/V L6 60ohm@100MHz L7 60ohm@100MHz C58 1uF D4 ESD0402V05C05 R4 0R R23 0R R21 0R R22 0R R5 0R R26 0R R45 0R R64 2.2K R40 0R R9 _10K R62 1K R63 1K R55 10K R56 10K R58 12K _R59 12K R48 0R R65 510K R6 510K R28 16R R29 16R C18 680pF C20 680pF C33 100pF D5 ESD0402V05C05 C19 0.1uF C59 1uF C26 1uF C27 1uF R47 0R C32 100pF 1 _GND 5 _DAT 6 _VDD 2 LRSEL 3 GND 4 CLK U2 WM7220IMS/V R54 10K C17 0.1uF 1 5 6 RV3-A CA04F2FT5AUD010G 2 4 3 RV3-B CA04F2FT5AUD010G 1 5 6 RV4-A CA04F2FT5AUD010G 2 4 3 RV4-B CA04F2FT5AUD010G HPDETR[2] HPDETL[2] HPOUT1L [2] HPOUT1R [2] MICDET1/HPOUT1FB2[2] JACKDET [2] A_IN1RN/DMICDAT1 [2] A_IN1RP [2] A_IN3RP [2] A_IN2RN/DMICDAT2 [2,6] A_IN2LN/DMICCLK2 [2,6] MICBIAS2 A_IN3LP [2] HPOUT2R [2] HPOUT2L [2] HPOUT1FB1/MICDET2 [2] A_OUT2R A_OUT2L MICBIAS1 GPIO1 [3] DBVDD1 GPIO2 [2] DBVDD2 A_IN2RN/DMICDAT2 [2,6] A_IN2LN/DMICCLK2 [2,6] MICBIAS2

GPIO31

GPIO30

GPIO29

GPIO28

Pin 6

Pin 5

Pin 4

Pin 3

PCM_DOUT

PCM_DIN

PCM_FS

PCM_CLK

RPI P5 Connection

PI 26PIN(P1)

Embest

POWER_PI_IO

COMPANY: Raspberry Pi Connection (socket) (pogo pin) 1 _VIN 2 _GND 3 _{SHDN BP} 4 5 VOUT U4 RT9167-18CB 1 _VIN 2 _GND 3 _{SHDN BP} 4 5 VOUT U13 RT9167A-33CB D2 6.2V R44 0R DNP C47 10uF 1 2 3 4 5 6 7 8 J2 HEADER2X4 C25 22uF 1 2 3 J5 DC_JACK 1 2 F1 2A@6V D3 Green 1 2 3 J8 HEADER3 L5 180ohm@100MHz C45 470nF R51 0R R60 0R DNP R67 0R R61 0R DNP R68 0R R70 0R R33 0R R34 0R R35 0R R36 0R R3 22K R27 22K R16 22K R10 0R R66 1K R49 0R DNP 1 _VIN 2 _GND 3 _{SHDN BP} 4 5 VOUT U6 RT9167-18CB C46 0.1uF C36 0.1uF C21 0.1uF C23 470nF C38 470nF C48 10uF C49 10uF C35 10uF C37 10uF C39 10uF C22 10uF C24 10uF C44 10uF L1 180ohm@100MHz L2 180ohm@100MHz R69 0R DNP R71 0R DNP 1 3 5 7 9 11 13 15 17 19 21 23 25 2 4 6 8 10 12 14 16 18 20 22 24 26 J4 HEADER2X13_B PCM_FS [7] AIF1TXDAT [3] PCM_CLK [7] AIF1RXDAT [3] GND RPI_SDA [5] RPI_SCLK [5] RPI_MISO [3] RPI_MOSI [3] RPI_SCLK1 [3] GND RST [3] IRQ [3] GND DC_5V DC_3V3 DC_3V3 +5V +5V DC_3V3 LDOENA [3,7] RPI_SS [3] RST_8804[5] GPIO3 [2] GPIO_B [5] GPIO5 [3] GND GND GND GND GND AVDD_1V8 GND MCLK2 [3,5] VDD_1V8 GND LDOENA [3,7] +3V3 [7] +3V3 [7] GPIO_A [5] RPI_RX [7] RPI_TX [7] RPI_TX [7] RPI_RX [7] PCM_DIN [7] PCM_DOUT[7] PCM_DIN [7] PCM_DOUT [7] PCM_DIN [7] PCM_DOUT [7] AIF1LRCLK [3] AIF1BCLK [3] PCM_FS [7] PCM_CLK [7] PCM_FS [7] PCM_CLK [7]