ANALOG DEVICES UG-177 Service Manual

Evaluation Board User Guide

One Technology Way • P. O . Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel : [phone] • Fax : [phone] • www.analog.com

UG-177

Evaluating the ADAU1781 SigmaDSP using the EVAL-ADAU1781Z

EVAL-ADAU1781Z PACKAGE CONTENTS

ADAU1781 evaluation board
EVAL-ADUSB2EBZ (USBi) communications adapter
USB cable with Mini-B plug
Evaluation board/software quick-start guide

DOCUMENTS NEEDED

ADAU1781 data sheet
ADMP401 data sheet
AN-1006 Applications Note, Using the EVAL-ADUSB2EBZ

EVALUATION BOARD TOP SIDE AND BOTTOM SIDE

GENERAL DESCRIPTION

This user guide explains the design and setup of the ADAU1781
SigmaDSP® evaluation board.

This evaluation board provides full access to all analog and digital
I/Os on the ADAU1781. The SigmaDSP is controlled by Analog
Devices, Inc., SigmaStudio™ software, which interfaces to the
board via a USB connection. This evaluation board can be
powered either over the USB bus or by a single 3.8 V to 6 V
supply, which is regulated to the voltages required on the board.
The PC board is a 4-layer design, with a single ground plane and a
single power plane on the inner layers. The board contains on­board microphones and speaker, and connectors for external
microphones and speaker. The master clock can be provided
externally or by the on-board 12.288 MHz active oscillator.

Figure 1. Evaluation Board Top Side

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.

08314-001

Rev. 0 | Page 1 of 24

08314-002

Figure 2. Evaluation Board Bottom Side

UG-177 Evaluation Board User Guide

TABLE OF CONTENTS

EVAL-ADAU1781Z Package Contents .......................................... 1

Documents Needed .......................................................................... 1

General Description ......................................................................... 1

Evaluation Board Top Side and Bottom Side ................................ 1

Revision History ............................................................................... 2

Evaluation Board Block Diagrams ................................................. 3

Setting Up the Evaluation Board .................................................... 5

Installing the SigmaStudio Software .......................................... 5

Installing the USBi Drivers ......................................................... 5

Default Switch and Jumper Settings .......................................... 5

Powering Up the Board ............................................................... 6

Connecting the Audio Cables ..................................................... 6

Setting Up Communications in SigmaStudio ........................... 6

Configuring the Registers ........................................................... 6

Creating a Basic Signal Flow ........................................................7

Downloading the Program to the DSP.................................... 10

Using the Evaluation Board .......................................................... 11

Power ............................................................................................ 11

Master Clock ............................................................................... 11

Inputs and Outputs .................................................................... 11

GPIO ............................................................................................ 11

Serial Audio Interface ................................................................ 11

Communications Header .......................................................... 11

Power-Down ............................................................................... 11

Evaluation Board Schematics and Artwork ................................ 12

Ordering Information .................................................................... 21

Bill of Materials ........................................................................... 21

REVISION HISTORY

7/10—Revision 0: Initial Version

Rev. 0 | Page 2 of 24

Evaluation Board User Guide UG-177

EVALUATION BOARD BLOCK DIAGRAMS

POWER
SUPPLY

REGULATION

BEEP

INPUT

ANALOG MI C

INPUTS

STEREO LINE

INPUT

DIGITAL MIC

INPUTS

SERIAL AUDIO

CONNECTOR

ACTIVE

OSCILLATOR

I2S/SPI

COMMUNICATIONS

HEADER

ADAU1781
SigmaDSP

MASTER CLOCK

SELECTOR

SPEAKER

CONNECTOR

ON-BOARD

SPEAKER

HEADPHONE

OUTPUT

SERIAL AUDIO

CONNECTOR

GPIO

08314-003

Figure 3. Functional Block Diagram

POWER

COMMUNICATIONS

HEADER

SERIAL AUDI O

CONNECTOR

SPEAKER

GPIO

MCLK

SPEAKER
OUTPUTS

HEADPHONE
OUTPUT

SELECT

ADAU1781
SigmaDSP

BEEP/MIC/STEREO LINE

INPUTS

08314-004

Figure 4. Board Layout Block Diagram

Rev. 0 | Page 3 of 24

UG-177 Evaluation Board User Guide

OSC

ST

IN

08314-005

Figure 5. Default Jumper and Switch Settings (A Solid Black Rectangle Indicates a Switch or Jumper Position)

Rev. 0 | Page 4 of 24

Evaluation Board User Guide UG-177

SETTING UP THE EVALUATION BOARD

INSTALLING THE SigmaStudio SOFTWARE

Users can download the latest version of SigmaStudio by
completing the following steps:

1. Go to www.analog.com/sigmastudiodownload and fill in

the Email: and Software Key: boxes. You will get a
software key with the evaluation board, or you can contact
Analog Deviecs, Inc., at [e-mail] to request a
software key.

2. Chose which version of SigmaStudio you would like and

click Submit.

3. Download the installer file, open the file, and extract the

files to your PC.

4. Install the Microsoft .NET Framework if you do not

already have it installed.

5. Install SigmaStudio by double-clicking setup.exe and

follow the prompts.

Click Search for the best driver in these locations, select
Include this location in the search, and click Browse to find
the SigmaStudio 3.0\USB drivers directory (see Figure 8).

INSTALLING THE USBi DRIVERS

SigmaStudio must be installed to use the USBi. When
SigmaStudio has been properly installed, connect the USBi
to an available USB port with the included USB cable. At this
point, Windows® XP recognizes the device and prompts the
user to install drivers (see Figure 6).

08314-006

Figure 6. Found New Hardware Notification

Select the Install from a list or specific location (Advanced)
option and click Next > (see Figure 7).

Figure 8. Windows Found New Hardware Wizard—Search and

Installation Options

When the warning about Windows Logo testing appears, click
Continue Anyway (see Figure 9).

Figure 9. Windows Logo Testing Warning

The USBi drivers should now be installed successfully. Leave
the USBi connected to the PC.

08314-008

08314-009

Figure 7. Found New Hardware Wizard—Installation

DEFAULT SWITCH AND JUMPER SETTINGS

By default, the evaluation board is configured for single-ended

8314-007

Rev. 0 | Page 5 of 24

stereo analog input and headphone output.

The J1, J10, J11, J13, and J14 jumpers must be connected. The
GPIO jumper (J7) can be connected as desired to use GPIO
circuitry.

Switch S3 (MCKI SOURCE) should be in the up (OSC)
position, and Switch S4 (IN SELECT) should be in the
right (ST_IN) position.

UG-177 Evaluation Board User Guide

POWERING UP THE BOARD

To power up the board, connect the ribbon cable of the USBi
to J2 (CONTROL PORT) of the EVAL-ADAU1781Z.

CONNECTING THE AUDIO CABLES

Connect a stereo audio source to J19 (ST IN). Connect head­phones or powered speakers to J18 (HP OUT). The labels for
J18 and J19 are only visible on the bottom of the board.

SETTING UP COMMUNICATIONS IN SIGMASTUDIO

Start SigmaStudio by double-clicking the shortcut on the desktop.

Click File…New Project or press Ctrl+N to create a new project.
The default view of the new project is called the Hardware
Configuration tab.

To use the USBi in conjunction with SigmaStudio, first select it
in the Communication Channels subsection of the toolbox on the
left side of the Hardware Configuration tab, and add it to the project
space by clicking and dragging it to the right (see Figure 10).

08314-010

Figure 10. Adding the USBi Communication Channel

If SigmaStudio cannot detect the USBi on the USB port of the
computer, then the background of the USB label will be red
(see Figure 11). This may happen when the USBi is not connected
or when the drivers are incorrectly installed.

If SigmaStudio detects the USBi on the USB port of the computer,
the background of the USB label changes to orange (see Figure 12).

08314-012

Figure 12. USBi Detected by SigmaStudio

To add an ADAU1781 to the project, select it from the
Processors (ICs / DSPs) list and drag it to the project space
(see Figure 13).

08314-013

Figure 13. Adding an ADAU1781

To use the USB interface to communicate with the target IC,
connect it by clicking and dragging a wire between the blue pin
of the USBi and the green pin of the IC (see Figure 14). The
corresponding drop-down box of the USBi automatically fills
with the default mode and channel for that IC.

08314-011

Figure 11. USBi Not Detected by SigmaStudio

CONFIGURING THE REGISTERS

To access the graphical register control window, click the IC 1 –
SigmaLP2 Register Controls tab near the bottom of the

window (see Figure 15).

Within the register control view, there are several tabs at the top
for easy navigation. Start with the Codec Setup tab (see Figure 16).

Rev. 0 | Page 6 of 24

Figure 14. Connecting the USB Interface to an ADAU1781 IC

Figure 15. Register Control Tab

Figure 16. Codec Setup Register Tab

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Evaluation Board User Guide UG-177

9

In the Automatic Startup section, click Load Preset (see Figure 17).

08314-017

Figure 17. Load Preset Button

If the board is connected and powered and the USBi drivers are
installed correctly, the PLL Lock Bit indicator to the left of the

Load Preset button should change to green to indicate that it is
Locked (see Figure 18).

The rest of the register settings can remain at their default values.

CREATING A BASIC SIGNAL FLOW

To acc es s the Schematic tab, where a signal processing flow
can be created, click the Schematic tab at the top of the screen
(see Figure 21).

8314-021

Figure 21. Schematic Tab

The left side of the schematic view includes the Tree Tool box,
which contains all of the algorithms that can run in the
SigmaDSP. Select the Input cell from within the IO > Input
folder (see Figure 22).

08314-018

Figure 18. PLL Lock Indicator

Click on the Record Input Signal Path tab (see Figure 19).

Figure 19. Record Input Signal Path

In the Record Gain Left (PGA) and Record Gain Right (PGA)
sections, the Single ended Input Enable controls are disabled by
default. Click each button once to enable the single-ended input
(see Figure 20).

08314-01

08314-022

Figure 22. Input Cell Selection

Click and drag the Input cell into the blank schematic space to
the right of the Tree Toolb ox (see Figure 23).

8314-023

Figure 23. Input Cell

8314-020

Figure 20. Record Path Controls

Rev. 0 | Page 7 of 24

UG-177 Evaluation Board User Guide

Navigate to the IO > Output folder and select the Output cell
(see Figure 24).

8314-024

Figure 24. Output Cell Selection

Click and drag an output cell to the schematic. Do this again to
create two outputs (see Figure 25).

Click and drag this cell to the schematic (see Figure 27).

Figure 27. Volume Control Cell

08314-027

By default, this cell only has one input channel and one output
channel, as indicated by the green input and right output dots.
To add a channel, right-click in the blank white part of the cell
and select Grow Algorithm > 1. Gain (RC slew) Growable DP > 1
from the menu (see Figure 28).

08314-025

Figure 25. Output Cells

Navigate to the Volume Controls > Adjustable Gain > Single/
Multiple Controls/Clickless SW Slew folder and select the
Growable Single Vol Ctrl cell (see Figure 26).

8314-026

Figure 26. Volume Control Cell Selection

Figure 28. Growing the Volume Control

The cell should now have two inputs and two outputs (see
Figure 29).

08314-029

Figure 29. Stereo Volume Control Cell

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Rev. 0 | Page 8 of 24

Evaluation Board User Guide UG-177

Navigate to the Filters > Second Order > Single Precision >
Optimized > 2 Ch folder and select the Medium Size Eq cell

(see Figure 30).

08314-030

Figure 30. EQ Cell Selection

Click and drag the cell to the schematic (see Figure 31).

The EQ should now have five bands (see Figure 33).

08314-033

Figure 33. Five-Band Stereo EQ Cell

To change the properties of a filter. Click its corresponding blue
filter icon once (see Figure 34).

8314-034

Figure 34. Filter Properties Button

Configure each filter as required. As an example, create a low
shelf at 50 Hz, peaking filters at 200 Hz, 500 Hz, and 2000 Hz,
and a high shelf at 10 kHz (see Figure 35).

8314-031

Figure 31. Single-Band Stereo EQ Cell

By default, the EQ only has one band. To increase the number
of bands, right click in the blank white part of the cell and select
Grow Algorithm > 1. 2 Channel - Single Precision, Optimized > 4
to increase the EQ to 5 bands (see Figure 32).

Figure 32. Growing the EQ Cell

Rev. 0 | Page 9 of 24

08314-035

Figure 35. Configured Five-Band EQ Cell

08314-032

UG-177 Evaluation Board User Guide

Connect the cells together by left-clicking a blue output dot and
clicking and dragging to the green output dot of the next cell.
Continue until the signal flow is completed from input to
output for each channel (see Figure 36).

Figure 36. Completed Signal Flow

The basic signal flow is now complete with stereo I/O, a five­band equalizer, and a clickless volume control.

08314-036

DOWNLOADING THE PROGRAM TO THE DSP

To compile and download the code to the DSP, click Link­Compile-Download once in the main toolbar of SigmaStudio
(see Figure 37). Alternately, press the F7 key.

08314-037

Figure 37. Link-Compile-Download Button

The signal flow should now be running on the evaluation board,
and audio should pass from input to output. The controls for
filters and volume can be changed in real time by clicking and
dragging them with the mouse.

Rev. 0 | Page 10 of 24

Evaluation Board User Guide UG-177

USING THE EVALUATION BOARD

POWER

Power can be supplied via the USB bus by connecting the
EVAL-ADUSB2EBZ (USBi) to Header J2, by a battery connected
to J15, or by a tip-positive 3.8 V dc to 6 V dc power supply on
Connector J16. In the case of power over the USB bus, connect
Jumper J1. The on-board regulator generates the 3.3 V dc supply
for the on-board circuitry. LED D1 lights up when power is
supplied to the board. To connect the output of the regulator
to the ADAU1781, connect the J10 and J11 jumpers. Optionally,
J9 can be connected if the speaker outputs are used.

MASTER CLOCK

The master clock to the ADAU1781 can be supplied either by
an on-board active 12.288 MHz oscillator or over the serial port
connectors. Setting the MCKI source selector switch to the OSC
position connects the active oscillator to the master clock input
pin of the ADAU1781. Setting this switch to the I
connects the master clock input of the ADAU1781 to Pin 3 on
Serial Audio Interface Header J4, which is labeled MCKI.

2

S position

INPUTS AND OUTPUTS

The board has multiple audio input and output options, including
digital and analog. The analog beep channel is always enabled.
The input select switch, S4, chooses among the remaining audio
input options: stereo line input, digital microphones, and analog
microphones.

Stereo Line Input

The stereo input jack, J19, accepts a standard stereo TRS 1/8-inch
mini-plug with two channels of audio.

Digital Microphones

Digital microphones can be connected to Header J12.

Analog Microphones

Two ADMP401 MEMS analog microphones in a single-ended
configuration are mounted on the underside of the board. External
analog microphones, in both differential and single-ended input
configurations, can be connected to the input jacks, J20 and J21.
If plugs are connected into the J20 and J21 jacks, the on-board
MEMS microphones are automatically disconnected. A bias
should be applied to external differential microphones by
connecting the J13 and J14 jumpers.

Beep Input

The analog beep input accepts a mono TS 1/8-inch mini-plug
with one channel of audio.

Headphone Output

The headphone output connects to any standard 1/8-inch mini­plug stereo headphones. The output power varies depending on
the impedance of the headphones.

Speaker Outputs

To use the speaker output, SVDD Power Jumper J9 must be
connected. The speaker output of the ADAU1781 can drive an
external speaker or an on-board speaker. In the case of an external
speaker, it should be connected to the Speaker Output Connector J8
and the J5 and J6 jumpers should be disconnected. To use the
on-board speaker, disconnect J8 and connect J5 and J6.

GPIO

The GPIO jumper header J7 allows the GPIO circuitry, consisting
of switches and LEDs, to be connected to the GPIO pins of
the ADAU1781. If the GPIO circuitry is connected, then the
corresponding pins cannot be used for the serial audio interface.

SERIAL AUDIO INTERFACE

Serial audio signals in I2S or TDM format can be connected to
the Serial Audio Interface Header J4. This header also includes
master clock input and output connection pins.

COMMUNICATIONS HEADER

The Communications Header J1 connects to the EVAL­ADUSB2EBZ. More information about the USBi can be found
in the AN-1006 application note.

2

The ADAU1781 uses I
An SPI can be used by moving several resistors on the bottom
side of the board. To use SPI mode, move Resistor R35 to the
R36 pads, move Resistor R37 to the R38 pads, move Resistor
R39 to the R41 pads, and move Resistor R43 to the R42 pads.

C communications protocol by default.

POWER-DOWN

The Power-Down Header J3, labeled \PDN on the silkscreen
of the board, provides access to the power-down pin on the
ADAU1781. On this 3-pin header, a 2-pin jumper can be used
to connect the power-down pin to either the USBi or to ground.

Rev. 0 | Page 11 of 24

UG-177 Evaluation Board User Guide

MICBIAS

EVALUATION BOARD SCHEMATICS AND ARTWORK

J18

RING

SLEEVE

Speaker Out

SP1

+

1-2

J5

J6

8OHM_SPEAKER_PROJUNL_1508MS

47uF
C40

C4

+

TP5

J9

3V3DD

J11

TP9

AVDD

TP7

3V3DD

J10

IOVDD

TP6

+

10uF

C39

0.10uF

10uF
C7

C5

+

0.10uF

+

C310uF

C6

0.10uF

DVDD_OUT

0.10uF

C2

J8

2

1

SPRING_2TERM_LEVER_TH

R16

C11

10k0

100pF

10k0

TP11

19

4

5

12

32

C31

0.10uF

MICBIAS

Input

Select

Switch

TIP

Stereo Single-Ended Output

R57

10k0

R53

10k0

C19

220uF

+

R19

10R0

1

O

AD8397ARDZ

U2-A

C8

+

2-3

R14

22

20

SPP

SPN

AVDD2

AVDD

DVDDOUT

IOVDD

MIC_BIAS

3

S4-A

124

C18

220uF

+

10R0

R18

7

Stereo HP Amplifier

O

U2-B

100pF

26

AOUTL

RMIC/RMICN/MICD228RMICP29LMICP30LMIC/L MICN/MICD1

27

AD8397ARDZ

+

R15

10k0

6-5

10k0

R13

BCLK

LRCLK

ADC_SDATA

TP10

25

AOUTR

U1

ADAU1381B_QFN

DAC_SDATA

49R9

49R9

GPIO

R9 49R9

R11

R10

16

7

13

15

GPIO

BCLK

LRCLK

DAC_SDATA14ADC_SDATA

SDA/COUT10ADDR0/CDATA

SCL/CCLK

ADDR1/CLATCH

PDN

BEEP

2

PDN

7

9

31

568

8

11

17

SCL/CCLK

SDA/COUT

ADDR0/CDATA

ADDR1/CLATCH

S4-B

MCKI18MCKO

08314-038

3V3DD

L1

12

C36

0.10uF

1

12.288MHz
VDD

OE

GND
2

4

U4

3

C14

10uF

EXT_MCLK

OUTPUT

COMPANY:

+

R45

C9

0.10uF

R48

1

CM

AGND2

23

AGND

3

DGND

6

THERM_PAD

33

49R9

R12

MCKO

49R9

49R9

C38

2.2pF

6

123

4

S3

5

DPDT_SLIDE_VERT_EG2207

R52

MICD1

Stereo Digital Mic Input

C25

10uF

C29

R32

49k9

R31

0R00

J14

R34

2k00

C30

0.10uF

STX-3150-5C

Differential Input 1

C24

OPEN

J21

10uF
C28

OPEN

C20

R30

49k9

R26

0R00

M2

1

GND

3

5

GND

OUTPUT

2

VDD

GND

4

Analog Mic 1

3V3DD

ADMP401A_MEMS_MIC

C49

0.10uF

10uF

C21

OPEN

R24

49k9

R23

1k00

TIP

RING

SLEEVE

J19

Stereo Single-Ended Input

10k0

C16

10uF

C17

OPEN

R22

49k9

R21

1k00

MICBIAS

C23

10uF

C27

R29

R28

0R00

J13

R33

2k00

C12

0.10uF

STX-3150-5C

C22

10uF

C26

OPEN

49k9

J20

OPEN

R27

49k9

R25

0R00

M1

1

GND

3

5

GND

OUTPUT

2

VDD

GND

Analog Mic 2

3V3DD

4

C47

0.10uF

C15
10uF

49k9

R20

TIPJ17

RING

SLEEVE

ADMP401A_MEMS_MIC

BEEP input

Differential Input 2

Figure 38. Evaluation Board Schematic—SigmaDSP, Analog I/O, and Master Clock Generation

Rev. 0 | Page 12 of 24

Evaluation Board User Guide UG-177

8314-039

Figure 39. Evaluation Board Schematic—Digital Microphone Interface

08314-040

Figure 40. Evaluation Board Schematic—Serial Audio Data Interface

08314-041

Figure 41. Evaluation Board Schematic—Power Supply

Rev. 0 | Page 13 of 24

UG-177 Evaluation Board User Guide

08314-042

Figure 42. Evaluation Board Schematic—GPIO Interface

8314-043

Figure 43. Evaluation Board Schematic—Communications Interface

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Evaluation Board User Guide UG-177

Figure 44. Evaluation Board Layout—Top Assembly

Rev. 0 | Page 15 of 24

8314-044

UG-177 Evaluation Board User Guide

Figure 45. Evaluation Board Layout—Top Copper

Rev. 0 | Page 16 of 24

08314-045

Evaluation Board User Guide UG-177

Figure 46. Evaluation Board Layout—Power Plane

Rev. 0 | Page 17 of 24

08314-046

UG-177 Evaluation Board User Guide

Figure 47. Evaluation Board Layout—Ground Plane

Rev. 0 | Page 18 of 24

08314-047

Evaluation Board User Guide UG-177

Figure 48. Evaluation Board Layout—Bottom Copper

Rev. 0 | Page 19 of 24

08314-048

UG-177 Evaluation Board User Guide

08314-049

Figure 49. Evaluation Board Layout—Bottom Assembly

Rev. 0 | Page 20 of 24

Evaluation Board User Guide UG-177

ORDERING INFORMATION

BILL OF MATERIALS

Table 1.

Qty. Designator Description Value Manufacturer Part Number

19

C1, C2, C4 to C6,
C9, C12, C30, C31,
C33, C35 to C37,
C41 to C44,
C47, C49

7

C3, C7, C14, C32,
C34, C39, C45

2 C8, C11

7

C10, C17, C21,
C26 to C29

3 C13, C46, C48

7

C15, C16, C20,
C22 to C25

2 C18, C19

1 C38

1 C40 Tantalum capacitor, 105°C SMD 47 μF Kemet T520B476M010ATE035
1 C50

16

R1, R2, R13 to R17,
R39, R43, R46, R47,
R52 to R55, R57

4 R3, R4, R7, R8

11

R5, R6, R9 to R12,
R45, R48, R50,
R51, R56

2 R18, R19

7

R20, R22, R24, R27,
R29, R30, R32

2 R21, R23

6

R25, R26, R28, R31,
R35, R37

2 R33, R34

7

R36, R38, R40 to
R42, R44, R49

1 SP1

1 U1

1 U2

1 U3

Multilayer ceramic, 16 V,
X7R (0402)

SMD tantalum capacitor,
0805, 6.3 V

Multilayer ceramic, 50 V,
NP0 (0402)

Do not insert Open Do not insert Do not insert

Multilayer ceramic, 16 V,
X7R (0603)

Multilayer ceramic, 10 V,
X7R (0805)

SMD tantalum capacitor,
SMD, 6.3 V

Multilayer ceramic, 50 V,
NP0 (0402)

Multilayer ceramic, 25 V,
NP0 (0603)

Chip resistor, 1%, 63 mW,
thick film, 0402

Chip resistor, 1%, 63 mW,
thick film, 0402

Chip resistor, 1%, 63 mW,
thick film, 0402

Chip resistor, 1%, 125 mW,
thick film, 0805

Chip resistor, 1%, 63 mW,
thick film, 0402

Chip resistor, 1%, 0.1 W,
thick film, 0402

Chip resistor, 0.1 W,
thick film, 0402

Chip resistor, 1%, 0.1 W,
thick film, 0402

Do not insert Open Do not insert Do not insert

Speaker, 8 Ω, 0.5 W, 87 dB,
15 mm, SMD

4 ADC, 4 DAC with PLL,
24-bit codec

Rail-to-rail, high output
current amplifier

High accuracy low dropout

3.3 V dc voltage regulator

0.10 μF Panasonic EC ECJ-0EX1C104K

10 μF Rohm Semiconductor TCP0J106M8R

100 pF Murata ENA GCM1555C1H101JZ13D

1.0 μF Taiyo Yuden EMK107BJ105KA-TR

10 μF Murata ENA GRM21BR71A106KE51L

220 μF Nichicon F930J227MNC

2.2 pF Johanson Tech. 500R07S2R2BV4T

10 nF TDK Corp. C1608C0G1E103J

10 kΩ Rohm Semiconductor MCR01MZPF1002

301 Ω Rohm Semiconductor MCR01MZPF3010

49.9 Ω Rohm Semiconductor MCR01MZPF49R9

10 Ω Panasonic EC ERJ-6ENF10R0V

49.9 kΩ Vishay/Dale CRCW040249K9FKED

1 kΩ Panasonic EC ERJ-2RKF1001X

0 Ω Panasonic EC ERJ-2GE0R00X

2 kΩ Panasonic EC ERJ-2RKF2001X

8 Ω PC mount Projects Unlimited SMS-1508MS-R

ADAU1781 Analog Devices ADAU1781

AD8397ARDZ Analog Devices, Inc. AD8397ARDZ

ADP3339AKCZ-3.3-R7 Analog Devices ADP3339AKCZ-3.3-R7

Rev. 0 | Page 21 of 24

UG-177 Evaluation Board User Guide

Qty. Designator Description Value Manufacturer Part Number

1 U4

2 U5, U6

1 U7

2 M1, M2

2 S1, S2

1 S3 DPDT slide switch vertical DPDT slide E-Switch EG2207
1 S4

1 L1 Chip ferrite bead 600 Ω at 100 MHz TDK Corp. MMZ1005S601C
8

J1, J5, J6, J9 to J11,
J13, J14

1 J2

1 J3 3-position SIP header 3-pin jumper

1 J4 Header, 12-way, unshrouded 2 × 6

1 J7 Header, 10-way, unshrouded 2 × 5

1 J8

1 J12 12-way socket unshrouded 2 × 6

1 J15 2-pin header R/A, 100 mil gold 22-12-2-24 Molex 22-12-2024
1 J16 Power supply connector RAPC722X Switchcraft, Inc. RAPC722X
3 J17 to J19 Sterero mini-jack SJ-3523-SMT CUI Inc. SJ-3523-SMT
2 J20, J21

2 D1, D4

1 D2

1 D3

3 D5 to D7

13 TP1 to TP13 Mini-test point, white, 0.1" OD 5002 Keystone Electronics 5002

12.288 fixed SMD oscillator,

1.8 V dc to 3.3 V dc
Translator 1-bit, unidirect,

SC70-5
Adjustable low dropout

voltage regulator
Omnidirectional microphone

with bottom port and
analog output

Tact switch long stroke
(normally open)

Switch slide, DP3T,
PC mount, L = 4 mm

2-pin header unshrouded
jumper, 0.10", use shunt
Tyco 881545-2

10-way shroud polarized
header

2-position spring terminal
block

Sterero mini-jack with tip
and ring normal

Red diffused, 6.0 millicandela,
635 nm, 1206

Green diffused, 10 millicandela,
565 nm, 1206

Yellow diffused, 4.0 millicandela,
585 nm, 1206

Schottky, 30 V, 0.5 A,
SOD123 diode

12.288 MHz Abracon Corp. AP3S-12.288MHz-F-J-B

FXLP34P5X Fairchild Semiconductor FXLP34P5X

ADP1711AUJZ-1.8-R7 Analog Devices ADP1711AUJZ-1.8-R7

ADMP401-1 Analog Devices ADMP401-1

70 gf Omron Electronics B3M-6009

2P3T slide E-Switch EG2305

2-pin jumper

2 × 5 3M N2510-6002RB

14-30 AWG spring clamp On-Shore Tech. OSTHT020080

STX-3150-5C Kycon STX-3150-5C

Red diffused Lumex Opto SML-LX1206IW-TR

Green diffused Lumex Opto SML-LX1206GW-TR

Yellow diffused CML Innovative Tech CMD15-21VYD/TR8

Schottky ON Semiconductor MBR0530T1G

Sullins Connector
Solutions

Sullins Connector
Solutions

Sullins Connector
Solutions

Sullins Connector
Solutions

Sullins Connector
Solutions

PBC02SAAN or
cut PBC36SAAN

PBC03SAAN or
cut PBC36SAAN

PBC06DAAN

PBC05DAAN

PPPC062LFBN-RC

RELATED LINKS

Resource Description

ADAU1781 Product Page, SigmaDSP Low-noise Stereo Audio Codec for Portable Applications
ADMP401 Product Page, Omnidirectional Microphone with Bottom Port and Analog Output
AN-1006 Application Note, Using the EVAL-ADUSB2EBZ

Rev. 0 | Page 22 of 24

Evaluation Board User Guide UG-177

NOTES

Rev. 0 | Page 23 of 24

UG-177 Evaluation Board User Guide

NOTES

I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).

ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection

circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.

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set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
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registered trademarks are the property of their respective owners.
UG08314-0-7/10(0)

Rev. 0 | Page 24 of 24