2 Elizabeth Drive

Chelmsford, MA 01824

PH: 1-800-ANALOGD

Sheet of

Rev

Date

Title

SizeC

Board No.

1

A

2

3

4

1

2

3

4

B C D

A B C D

1.17

A0983-2017

EVAL-AD2428WD1BZ

5/17/18

Title

EVAL-AD2428WD1BZSchematic

1

TWI Address 110100yx

x for bit 0 is the R/W bit. Read - 1, Write - 0

y for bit 1 is the M/S bit. Master - 0, Slave - 1

SDA

SCL

C784.7UF0.1UF

C380.1UFC40

0.1UFC41

Towards Master

0.01UFC42

0.01UFC43

0.1UFC44

0.47UFC45

10UFC46

0.01UFC47C48

0.1UF

CDBU0130LD3

4.7UFC49

0.033UFC50

0.1UFC51

0.01UFC52

0.01UFC53

Towards Last Slave

R151.0K

3.3KR16

CDBU0130LD5

120.0R17

120.0R18

120.0R19

120.0R20

10KR14

10KR13

LED1YELLOW

R211.50K

R2210K

0402 0402 0402

0402

0402

0402

04020402

0402

0402

0402

04020402

0402

0402 0402

08050805

0402

1210

0402

1210

1210

0603

1210

0805

04020.033UFC57

2

1 Q1BSS308PE

33300PFC58

0603

R2333.0K0402

C590.015UF0402

0.033UFC60

0402

R2410K0402

R25

040210K10K

0402

R26

D4ZLLS400

R27 330402R28 330402

FER12

1 4

32

2600

FER131 4

32

2600

1000FER6

1000FER7

1000FER8

1000FER9

C614.7UF0805

AD2428_IRQ

AD2428_IO7

2428 IRQ

C620.33UF0603

C630.33UF0603

C6412PF0402

040212PFC65

C6627PF0402

C6727PF0402

C6827PF0402

C6927PF0402

L2180NH

L3180NH

L4180NH

L5180NH

C70

0402DNP

C71

0402DNP

C72

0402DNP

C73

0402

C74

0402

C75

0402DNP

DNP

DNP

R291.0K1206

C764.7UF0805

R301.01206

10KR31

040210KR32

0402DNP DNP

AD2428_BCLK

AD2428_SYNC

AD2428_DRX0

AD2425_DTX1

AD2428_DRX1

2 Elizabeth Drive

Chelmsford, MA 01824

PH: 1-800-ANALOGD

Sheet of

Rev

Date

Title

SizeC

Board No.

1

A

2

3

4

1

2

3

4

B C D

A B C D

7

1.1A0983-2017

EVAL-AD2428WD1BZ

5/17/18

AD2428

ADR1/IO1

ADR2/IO2

IOVD

D

BCLK

SYNC

DTX0/IO3

VIN

SENSE

SWP

VSSN

BTR

XVD

D

BP

VSS

1

BCM

BN

VOU

T1

IRQ/IO0

VSS

2

PLL

VDD

DTX1/IO4

DRX0/IO5

DRX1/IO6

IO7

ACM

AN

VOU

T2

SDA

AP

DVD

D1

SCL ATR

XVD

D

DVD

D2

VSS

3

U1

33

3 20

4

2

19

5

29

18

17

16

15

14

13

1

31

6

32

23

24

25

22

21

26

27

28

30

12

11

10

9

8

7IO1

D9TPSMF4L28A

R80 330402

SOCKETDNP

XU1

P2

1

2

DURACLIK

DURACLIK

2

1P3

MASTER

SLAVE

R84

040210K

R85

0402100K 0.033UF

C96

0402

32

1B

SS

30

8P

EQ

3

C540.033UF0402

C550.033UF0402

C560.033UF0402

JP1

2

1

IDC

A2B_POWER

R94012061206

0R95

AD2428_VOUT2

D7BAS116

D8BAS116

A2B POWER

LFCSP32AD2428

2

040233R103

C1180.033UF0402

04020.033UFC111

C1120.033UF0402

04020.033UFC113

080510UFC39

R82 00402

JP1821

IDCDNP

JP1521

IDCDNP

JP31

3 4

2

IDC

JP17

2

1

IDCDNP

R8300402

IDC

2

43

1JP16

DNP

2

3

JP2

4

1

IDC

IDCDEFAULT=Pin 1SJ?

AD2425_DTX0

L93.3UH

3.3UHL10

L113.3UH

3.3UHL12

DEFAULT=InstalledSJ?

IDC

IDCDEFAULT=Pin 1SJ?

IDCDEFAULT=Pin 1SJ?

SJ?DEFAULT=Pin 1IDC

TWI Address 0111000xx for bit 0 is the R/W bit. Read - 1, Write - 0

IN/OUT0

IN/OUT1

IN/OUT2

IN/OUT3 ADAU1961

AD2428/PDM MICS

AD2428/PDM MICS

SDP

ADAU1452

5/17/18

EVAL-AD2428WD1BZ

A0983-2017

7

1.1

R34750805

TP1 TP2

0.1UF0402

C77

SIGMA STUDIO

IDC

P11

10

2

3 4

6

7 8

9

5

2

3

4

5J1SPDIF INPUT

1

FIBER-OPTICC290.1UF0402

33

34

ADAU1452

45

LFCSP72

47

46

15

50

8

19

25

U6

64

22

35

53

71

36

9

23

24

2

10

27

11

18

28

12

29

37

38

30

56

31

32

54

16

73

55

3 7

72

13

20

141

17

5

41

67

4

65

40

39

68

21

6

44

70

49

57

52

63

42

4360

48

51

26

59

62

58

61

66

69

R110402

0

0R120402

0.1UFC30

04020.01UF0402

C31 C32

04020.1UF 0.01UF

0402

C330.1UF0402

C34 C35

04020.01UF

C360.1UF0402

C37

04020.1UFC14

10UF08050805

10UFC15

C1610UF0805 0805

10UFC17

0402

C18150PF

5600PF0402

C19

R14.32K0402

FER1600

R41.0K0402

R500402

C20

04020.1UF 0.01UF

C21

0402

C22

04020.1UF

C230.1UF0402 0402

C240.1UF

C25

04020.1UF

0402100.0R10

C27

040222PF

C28

040222PF

12.288MHZY1

04020R9

1

3

2

Q2STD2805T4

3

4

33

RN3

8

7

6

5

1

2

2

3

4

8

7

6

5

RN1

1

33

6

5

RN2

33

1

2

3

4

8

7

YELLOW1452 STATUS LED2

R8 0.50402

C26

04020.1UF

040233R7

USBiYELLOWLED3

R6

0805910.0

0R500402R360402

0

04022.0KR51

040233R54

2 Elizabeth Drive

Chelmsford, MA 01824

PH: 1-800-ANALOGD

Sheet of

Rev

Date

Title

SizeC

Board No.

1

A

2

3

4

1

2

3

4

B C D

A B C D

VOUT

VCC

GND

NC1

NC2

SPDIFIN

XTALIN/MCLK

AGN

D

THD_M

SS_M/MP0

SDATA_IN0

SDATA_IN1

SDATA_IN2

SDATA_IN3

BCLK_IN0

BCLK_IN1

BCLK_IN2

BCLK_IN3

SPDIFOUT

SDATA_OUT0

BCLK_OUT0

SDATA_OUT1

SDATA_OUT2

SDATA_OUT3

BCLK_OUT1

BCLK_OUT2

BCLK_OUT3

LRCLK_IN0/MP10

LRCLK_IN1/MP11

LRCLK_IN2/MP12

LRCLK_IN3/MP13

LRCLK_OUT0/MP4

LRCLK_OUT1/MP5

LRCLK_OUT2/MP8

LRCLK_OUT3/MP9

THD_P

XTALOUT

CLKOUT

RESET

MOSI_M/MP1

SCL_M/MP2

SDA_M/MP3

MISO/SDA

SCLK/SCL

MOSI/ADDR1

SS/ADDR0

SELFBOOT

MP6

MP7

AUXADC0

AUXADC1

AUXADC2

AUXADC3

AUXADC4

AUXADC5

DG

ND

1D

GN

D2

DG

ND

3D

GN

D4

DG

ND

5D

GN

D6

DG

ND

7D

GN

D8

DG

ND

9

DVD

D1

DVD

D2

DVD

D3

DVD

D4

IOVD

D1

IOVD

D2

IOVD

D3

IOVD

D4

VDR

IVE

AVD

D

PG

ND

PVD

D

PLLFILT

DG

ND

10

VIN

VCC

GND NC1

NC2

R1A

R2A

R3A

R4A

R1B

R2B

R3B

R4B

R1A

R2A

R3A

R4A

R1B

R2B

R3B

R4B

R1A

R2A

R3A

R4A

R1B

R2B

R3B

R4B

ADAU1452_SDATA_OUT0

SDA

SDA

SCL

SCL

ADAU1452_LRCLK_OUT0

ADAU1452_CLKOUT

ADAU1961_BCLK

ADAU1961_ADC

ADAU1452_SDATA_IN2

ADAU1452_SDATA_IN1

ADAU1452_LRCLK_OUT2

ADAU1961_LRCLK

ADAU1452_SDATA_OUT2

ADAU1961_DAC

ADAU1452_BCLK_OUT2ADAU1452_BLK_IN2

ADAU1452_LRCLK_IN2

ADAU1452_BCLK_OUT0

ADMP621_DATA0

ADAU1452_SDATA_OUT1

ADAU1452_MP7

ADAU1452_CLKOUT_SDP

ADMP621_DATA1

ADAU1452_SDATA_IN0

ADAU1452_LRCLK_IN3

ADAU1452_MP6

1452_RESET

USB_RESET

BOOTJP4

IDC

21

SDA

SCL

AD2428_IRQ

R792.0K0402

0402

R4510K

3.3V

3.3V

3.3V

3.3V

3.3V

3.3V

R1000402

0DNP

DNP0

0402R101

ADAU1452_BLK_IN2

ADAU1452_LRCLK_IN2

ADAU1452_BCLK_OUT2

ADAU1452_LRCLK_OUT2

WP

SCL

SDA

A0

A2

VCC

A1

VSS

U4

4

2

8

3

1

5

6

7

24AA512TSSOP8

3

C10933PF0402

040233PFC110

ADAU1452_BCLK_IN0

SJ?DEFAULT=InstalledIDC

3J2

41

5

FIBER-OPTIC

SPDIF OUTPUT

2

2 Elizabeth Drive

Chelmsford, MA 01824

PH: 1-800-ANALOGD

Sheet of

Rev

Date

Title

SizeC

Board No.

1

A

2

3

4

1

2

3

4

B C D

A B C D

EVAL-AD2428WD1BZ

5/17/18 7

1.1A0983-2017

ADAU1761

SCL

SDA

ADAU1961_LHPADAU1961_RHP

ADAU1961_LAUX

ADAU1961_RAUX

ADAU1961_LHP

ADAU1961_RHP

ADAU1961_RAUXADAU1961_LAUX

ADAU1961_ADCADAU1961_DAC

ADAU1961_BCLKADAU1961_LRCLK

10KR33

0402

CT1470UF2917

2917470UFCT2

J33

5

4

2

1

3.5MM

3.5MM

1

2

4

5

3J4

LINE IN

LINE OUT

0402

R46100.0

0402

R47100.0

0603

R521K

0603

R531K

0603

R6149.9K

R62

060349.9K

0402R63 33

0402

R48100K

R49

0402100K

0402R59 33

R600402

33

0805

C610UF

0805

C710UF

0402

C100.1UF

C11

04020.1UF

0402

C120.1UFC13

04020.1UF

0402

C820.1UF

0805

C8910UF

C90

080510UF

0402

C910.1UF

C92

04020.1UF

0402

C80.1UF

C9

04020.1UF

3.3V

FER15600

080510UFC108

4

AD2428_BCLK

ADAU1452_CLKOUT 1

3

2

IDC

1961 MCLKJP19

DEFAULT=1 & 2IDC

SJ?

MICBIAS

DVDDOUT

JACKDET/MICIN

AVDD0

LINPLINN

LRCLK/GPIO3BCLK/GPIO2ADC_SDATA/GPIO1

ADDR0/CLATCH

SDA/COUT

MCLK

AGND0

LHPRHP

ROUTPROUTN

IOVDD

DGND

LAUX

CM

RINPRINN

RAUX

LOUTPLOUTN

MONOOUT

AVDD1

AGND1

DAC_SDATA/GPIO0

ADDR1/CDATA

SCL/CCLK

EP

U2

33

32

30

27

22

23

21

1718

14

1312

7

6

25

1

1615

1920

9

2

31

3

262829

1110

8

4

24

5

ADAU1761QFN50P500X500-33N

2 Elizabeth Drive

Chelmsford, MA 01824

PH: 1-800-ANALOGD

Sheet of

Rev

Date

Title

SizeC

Board No.

1

A

2

3

4

1

2

3

4

B C D

A B C D

1.17

A0983-2017

EVAL-AD2428WD1BZ

5/17/18

Configuration/Microphones

VDD

CLK DATA

GND

LR_SEL

VDD

CLK DATA

GND

LR_SEL

4

1 5

3

2

SMTINMP621

U7

C800.1UF0402

040233R34

4

1 5

3

2

SMTINMP621

U8

04020.1UFC81

R35 330402

ADMP621_CLK

ADMP621_DATA0

SMTINMP621

U9

2

3

51

4

R55 330402

VDD

CLK DATA

GND

LR_SEL

ADMP621_DATA1

04020.1UFC99

AD2428_VOUT2

5

SJ?DEFAULT=3 & 4IDC

SJ?DEFAULT=3 & 4IDC

SJ?DEFAULT=3 & 4IDC

SJ?DEFAULT=2 & 3IDC

JP51

3

5

4

2

6

IDC

BCLK

ADAU1452_BCLK_OUT0

ADAU1452_BCLK_IN0

AD2428_BCLK

ADAU1961_BCLK

SYNC

IDC

6

2

4

5

3

1JP6

ADAU1452_LRCLK_OUT0

ADAU1452_LRCLK_IN3

AD2428_SYNC

ADAU1961_LRCLK

JP71

3

5

4

2

6

IDC

DRX0

ADAU1452_SDATA_OUT0AD2428_DRX0

ADMP621_DATA0

ADAU1961_ADC

2

3

DRX1

IDC

JP81

ADAU1452_SDATA_OUT1

AD2428_DRX1

ADMP621_DATA1

JP91

3

5

4

2

6

IDC

DTX1

ADAU1452_SDATA_IN1AD2425_DTX1

ADAU1452_SDATA_OUT1

ADAU1961_ADC

SJ?

IDCDEFAULT=3 & 4

DEFAULT=1 & 2IDC

SJ?

ADP621 CLK

IDC

6

2

4

5

3

1JP11

SJ?

IDCDEFAULT=Pin 1

JP10DTX0

3

IDC

2

1ADAU1452_SDATA_IN0

AD2425_DTX0

ADAU1961_DAC

ADMP621_CLK

AD2428_IO7

ADAU1452_BCLK_OUT0

AD2428_BCLK

GP1

2 Elizabeth Drive

Chelmsford, MA 01824

PH: 1-800-ANALOGD

Sheet of

Rev

Date

Title

SizeC

Board No.

1

A

2

3

4

1

2

3

4

B C D

A B C D

1.17

A0983-2017

EVAL-AD2428WD1BZ

5/17/18

EI3/Reset

SPI0_SEL_CSPI0_SEL_B

SPORT1_D1

SPORT0_TDV

PPI0_FS1

RSVD5

GND6

RSVD2

PPI0_D3

GND5

PPI0_D9

PPI0_D13

SPORT0_D1

SPORT1_TDV

GND7

PPI0_FS3

RSVD4

PPI0_D11

RSVD3

PPI0_D1

PPI0_D5

PPI0_D7

SPI0_D2 SPI0_D3

RESET_OUT*

GND12

SCL1*

GPIO2

GND10

TMR_A

GND9

SPI0_RDY

GND11

TWI0_A0*

SPI0_SEL1/SPI0_SS*

SDA1*

GPIO0

GPIO4

GPIO6

TMR_C

RSVD6

RSVD9

RESET_IN*

UART0_RX

PPI0_D17

PPI0_D14

VIN

GND1

USB_VCC

PPI0_D23

PPI0_D19

RSVD1

GND2

GND3

PPI0_D21

SPORT_INT

GND8

UART0_TX

GND4

WAKE*

GND13

EXT_BOOT

SLEEP*

RSVD11 RSVD12

RSVD10

GND14

TMR_B

GND15

GPIO3

SCL0*

GND16

SPI0_MISO

SPI0_SEL_A

SPORT0_CLK

SPORT0_FS

SPORT1_D0

GND18

PPI0_FS2

RSVD15

PPI0_INT

PPI0_D4

PPI0_D6

PPI0_D10

GND21

PPI0_D16

PPI0_D20

GND22

GND23

RSVD17

TMR_D*

GPIO7*

GPIO5

GPIO1

SDA0*

SPI0_CLK

SPI0_MOSI

GND17

SPORT0_D0

SPORT1_FS

SPORT1_CLK

PPI0_CLK

RSVD14

GND19

PPI0_D2

GND20

PPI0_D8

PPI0_D12

PPI0_D15

PPI0_D18

PPI0_D22

VIO

GND24

PS_IN

RSVD13

CLKOUT

RSVD16

PPI0_D0

SPORT1_CNVTSPORT0_CNVT

J5

53 54

101

100

71

70

120

118

116

114

112

110

108

106

104

102

98

96

94

92

90

88

86

84

82

80

78

76

74

72

119

117

115

113

111

109

107

105

103

99

97

95

93

91

89

87

85

83

81

79

77

75

73

69

66

6867

64

61

63

65

11

62

36

35

8

6

4

2

9

7

5

3

1

12

10

59

60

55

51

49

47

45

43

41

39

56

52

50

40

48

46

44

42

58

57

3433

16

18

20

22

14

24

26

28

30

32

13

15

17

19

21

23

25

27

29

31

37 38

0.6MM

SDP Board plugs onto this connector

ADAU1452_SDATA_IN2ADAU1452_SDATA_OUT2

ADAU1452_BCLK_OUT2

ADAU1452_LRCLK_OUT2

ADAU1452_BLK_IN2

ADAU1452_LRCLK_IN2

ADAU1961_DAC

SDA

SCL

AD2428_IRQ

ADAU1452_MP6

ADAU1452_MP7

SDP_RESET

R2 330402R56 330402

5V

ADAU1452_CLKOUT_SDP

C10022UF1210

R5700402

04020R58

IO1MR

RESET

GND

VCC

RESET REDLED4

SN74LVC1G08

U111

24

SOT23-5

4

U12

SOT23-5SN74LVC1G08

1

2

MOMENTARYSW1

RESET

U104

1

2

SOT143

3

ADM6315

1452_RESET

USB_RESET

SDP_RESET

PWR_LOST

0402

R64330.0

R65

040210K

0402

R6610K

R67

040210K

0402

R6810K

R69

040210K

DNP0402

R8110K

C93

04020.01UF

0402

C940.01UF

0402

C950.01UF

3.3V

3.3V

3.3V

6SDP

SHGND

SHGND

F13A

D6MBRS540T3G D2

GSOT12

FER10600

FER11600

2

3

1

TP3

2 Elizabeth Drive

Chelmsford, MA 01824

PH: 1-800-ANALOGD

Sheet of

Rev

Date

Title

SizeC

Board No.

1

A

2

3

4

1

2

3

4

B C D

A B C D

Power

A0983-2017 1.175/17/18

EVAL-AD2428WD1BZ

VSYS

1

PR

OG

CLPROG

CH

GO

FF

BS

TOFF

VIN

CLN

CHRG

FAULT

RSTFB

RST

F2F1F0

IGAT

E

OVSNS

NTC

BSTFB

PFI

PFO

SW1

SW2

BAT

VSYS

2

GN

D2

5

23

20

19

18

17

16

15

14

13

12

11

10

9

8

76

54

3

2

R37178.0K0402

R3860.4K0603

C832.2UF0805

SW

PGOOD

GND1

VIN

MODE/SYNC

RUN

FB

GND2

INTVCC

VR1

6

9

5

3

7

2

8

4

1

C844.7UF1206

0402

R3910K

0402

R4010K

DNP

C851UF0805

R4118.2K0402

R42182.0K0402

R431.0M0402

C8610PF0402

C8722UF1210

L12.2UH

TP4

2.2UHL6

1

2

P5

5.08MM

12V

24

22

21

1

R440.0121206

C88100UF1210R70

1.69M0402

R71324.0K0402

R722.0K0402

JP1221

IDC

NTC

5V

5V@2A

LED5GREEN

LED6RED

LED7YELLOW

R73390.00402

CHRG FAULTPFO

0402390.0R74 R75

390.00402 0402

390.0R76

PWR_LOST

R7700402

04020R78

DNP

3.3UHL7

C791UF0805

TP5

TP65V TP7

A2B_POWER

1206

C31000PF

C5

12061000PF

3.3V

PWR

P4

12V

MBRS540T3GD1

RT SGND

VIN

PWM/SYNC

SD FB

PGNDVCC

VC

CAP

VOUTSW

EPAD

VR2

1 11

12

7

2

89

4

3

106

5V

12064.7UFC101

6.8uHL8

C1024.7UF1206

R8657.6K0603

R87210.0K0402

C103390PF0402

C10410PF0402

04020.1UFC105

121022UFC106

TP8

10KR91

0402

LTC3621

0402

R9210K

10KR93

0402DNP

7V

8V

Installed

Not Installed

A2B POWER Jumper

JP1321

IDC

A2B REG

U3

+-

+-

REDLED8RST

TP9

TP10 TP11 TP12 TP13 TP14

135

DFN12LTC3121

MSOP8

QFN24LTC4040

AD2428_VOUT2

0402

R9610K

R97004020402

0R98

DNP

0402

R9910K

C1070.01UF0402DNP

0402DNP

10KR102

U5

1 5

6

7

8

2

3

4

R88120K0402

R89105.0K

0402

0402576.0KR90

SO8SIR424DP

7

C110UF0805

C410UF0805

C9722UF1210

C210UF0805

FER14

1 4

32

700

SW1

INTVCC

RT

SYNC

EN/VU

VIN1

PG

TR/SS FB

GN

D1

SW2VIN2

GN

D2

GN

D4

GN

D5

GN

D6

GN

D3

GN

D7

GN

D8

GN

D9

GN

D1

0

VR3

7

21

20

19

18

17

1484

10 6

3

1315

12

9

11

16

1

2

5

LT8609SLQFN16

SJ?DEFAULT=Pin 1IDC

SJ?DEFAULT=InstalledIDC

JP14

2

1

IDC

A2B Voltage

DEFAULT=Pin 1IDC

SJ?

P6

2

1

2MM

Li-Ion