EVAL-ADAU1781Z User Guide
UG-177
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the ADAU1781 SigmaDSP using the EVAL-ADAU1781Z
EVAL-ADAU1781Z PACKAGE CONTENTS
GENERAL DESCRIPTION
EVAL-ADAU1781Z evaluation board
EVAL-ADUSB2EBZ (USBi) communications adapter
USB cable with Mini-B plug
Evaluation board/software quick start guide
This user guide explains the design and setup of the EVALADAU1781Z 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.
DOCUMENTS NEEDED
ADAU1781 data sheet
INMP401 data sheet
AN-1006 Application Note, Using the EVAL-ADUSB2EBZ
08314-001
08314-002
EVALUATION BOARD TOP SIDE AND BOTTOM SIDE
Figure 1. Evaluation Board Top Side
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Figure 2. Evaluation Board Bottom Side
Rev. A | Page 1 of 23
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EVAL-ADAU1781Z User Guide
TABLE OF CONTENTS
EVAL-ADAU1781Z Package Contents .......................................... 1
Creating a Basic Signal Flow ........................................................7
Documents Needed .......................................................................... 1
Downloading the Program to the DSP.................................... 10
General Description ......................................................................... 1
Using the Evaluation Board .......................................................... 11
Evaluation Board Top Side and Bottom Side ................................ 1
Power............................................................................................ 11
Revision History ............................................................................... 2
Master Clock ............................................................................... 11
Evaluation Board Block Diagrams ................................................. 3
Inputs and Outputs .................................................................... 11
Setting Up the Evaluation Board .................................................... 5
GPIO ............................................................................................ 11
SigmaStudio Software Installation ............................................. 5
Serial Audio Interface ................................................................ 11
Installing the USBi Drivers ......................................................... 5
Communications Header .......................................................... 11
Default Switch and Jumper Settings .......................................... 5
Power-Down ............................................................................... 11
Powering Up the Board ............................................................... 6
Evaluation Board Schematics and Artwork ................................ 12
Connecting the Audio Cables ..................................................... 6
Ordering Information .................................................................... 21
Setting Up Communications in SigmaStudio........................... 6
Bill of Materials ........................................................................... 21
Configuring the Registers ........................................................... 6
Related Links ............................................................................... 22
REVISION HISTORY
1/15—Rev. 0 to Rev. A
Changed ADMP401 to INMP401 ............................... Throughout
Deleted Installing the SigmaStudio Software Section ................. 5
Added SigmaStudio Software Installation Section ...................... 5
7/10—Revision 0: Initial Version
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EVAL-ADAU1781Z User Guide
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EVALUATION BOARD BLOCK DIAGRAMS
I2S/SPI
COMMUNICATIONS
HEADER
POWER
SUPPLY
REGULATION
BEEP
INPUT
SPEAKER
CONNECTOR
ANALOG MIC
INPUTS
ON-BOARD
SPEAKER
STEREO LINE
INPUT
ADAU1781
SigmaDSP
HEADPHONE
OUTPUT
DIGITAL MIC
INPUTS
SERIAL AUDIO
CONNECTOR
SERIAL AUDIO
CONNECTOR
ACTIVE
OSCILLATOR
08314-003
GPIO
MASTER CLOCK
SELECTOR
Figure 3. Functional Block Diagram
COMMUNICATIONS
HEADER
POWER
SERIAL AUDIO
CONNECTOR
MCLK
SELECT
SPEAKER
GPIO
SPEAKER
OUTPUTS
ADAU1781
SigmaDSP
HEADPHONE
OUTPUT
08314-004
BEEP/MIC/STEREO LINE
INPUTS
Figure 4. Board Layout Block Diagram
Rev. A | Page 3 of 23
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EVAL-ADAU1781Z User Guide
OSC
08314-005
ST
IN
Figure 5. Default Jumper and Switch Settings (A Solid Black Rectangle Indicates a Switch or Jumper Position)
Rev. A | Page 4 of 23
EVAL-ADAU1781Z User Guide
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SETTING UP THE EVALUATION BOARD
SigmaStudio SOFTWARE INSTALLATION
SigmaStudio must be installed to use the EVAL-ADAU1781Z.
To download and install the SigmaStudio software, follow these
steps:
1.
2.
3.
4.
Select 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).
Create or log into your myAnalog account at
www.analog.com.
Download the SigmaStudio software from
www.analog.com/SigmaStudioDownload.
Install SigmaStudio by double-clicking
ADI_SigmaStudioRel-.exe and following the
prompts. A PC restart is not required.
Consult the SigmaDSP Processors and SigmaStudio
Development Tool page at EngineerZone for answers to
any questions.
INSTALLING THE USBi DRIVERS
08314-008
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).
Figure 8. Windows Found New Hardware Wizard—Search and
Installation Options
08314-006
When the warning about Windows Logo testing appears, click
Continue Anyway (see Figure 9).
Figure 6. Found New Hardware Notification
08314-009
Select Install from a list or specific location (Advanced) and
click Next > (see Figure 7).
Figure 9. Windows Logo Testing Warning
08314-007
The USBi drivers are now installed. Leave the USBi connected
to the PC.
Figure 7. Found New Hardware Wizard—Installation
DEFAULT SWITCH AND JUMPER SETTINGS
By default, the evaluation board is configured for single-ended
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.
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EVAL-ADAU1781Z User Guide
If SigmaStudio detects the USBi on the USB port of the computer,
the background of the USB label changes to orange (see Figure 12).
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
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).
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
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.
08314-012
Start SigmaStudio by double-clicking the shortcut on the desktop.
08314-010
Figure 13. Adding an ADAU1781
Figure 10. Adding the USBi Communication Channel
08314-014
08314-011
If SigmaStudio cannot detect the USBi on the USB port of the
computer, 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.
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.
Figure 11. USBi Not Detected by SigmaStudio
Figure 14. Connecting the USB Interface to an ADAU1781 IC
CONFIGURING THE REGISTERS
08314-015
To access the graphical register control window, click the IC 1 –
SigmaLP2 Register Controls tab near the bottom of the
window (see Figure 15).
Figure 15. Register Control Tab
08314-016
Within the register control view, there are several tabs at the top
for easy navigation. Start with the Codec Setup tab (see Figure 16).
Figure 16. Codec Setup Register Tab
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EVAL-ADAU1781Z User Guide
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In the Automatic Startup section, click Load Preset (see Figure 17).
The rest of the register settings can remain at their default values.
CREATING A BASIC SIGNAL FLOW
08314-021
To access the Schematic tab, where a signal processing flow
can be created, click the Schematic tab at the top of the screen
(see Figure 21).
Figure 21. Schematic Tab
08314-017
The left side of the schematic view includes the Tree Toolbox,
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).
Figure 17. Load Preset Button
08314-018
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 changes to green to indicate that it is
Locked (see Figure 18).
Figure 18. PLL Lock Indicator
08314-019
Click the Record Input Signal Path tab (see Figure 19).
Figure 19. Record Input Signal Path
08314-022
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).
Figure 22. Input Cell Selection
08314-023
Click and drag the Input cell into the blank schematic space to
the right of the Tree Toolbox (see Figure 23).
08314-020
Figure 23. Input Cell
Figure 20. Record Path Controls
Rev. A | Page 7 of 23
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EVAL-ADAU1781Z User Guide
Click and drag this cell to the schematic (see Figure 27).
08314-027
Navigate to the IO > Output folder and select the Output cell
(see Figure 24).
Figure 27. Volume Control Cell
08314-024
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).
Figure 24. Output Cell Selection
08314-028
Click and drag an output cell to the schematic. Do this again to
create two outputs (see Figure 25).
Figure 28. Growing the Volume Control
08314-025
The cell should now have two inputs and two outputs (see
Figure 29).
Figure 25. Output Cells
08314-029
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).
08314-026
Figure 29. Stereo Volume Control Cell
Figure 26. Volume Control Cell Selection
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The EQ should now have five bands (see Figure 33).
08314-033
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 33. Five-Band Stereo EQ Cell
To change the properties of a filter, click its corresponding blue
filter icon once (see Figure 34).
Figure 30. EQ Cell Selection
08314-034
Click and drag the cell to the schematic (see Figure 31).
Figure 34. Filter Properties Button
08314-031
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).
08314-032
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 five bands (see Figure 32).
Figure 32. Growing the EQ Cell
Rev. A | Page 9 of 23
08314-035
Figure 31. Single-Band Stereo EQ Cell
Figure 35. Configured Five-Band EQ Cell
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EVAL-ADAU1781Z User Guide
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
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).
08314-036
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.
Figure 36. Completed Signal Flow
The basic signal flow is now complete with stereo I/O, a fiveband equalizer, and a clickless volume control.
Rev. A | Page 10 of 23
EVAL-ADAU1781Z User Guide
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USING THE EVALUATION BOARD
POWER
Beep Input
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.
The analog beep input accepts a mono TS 1/8-inch mini-plug
with one channel of audio.
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 I2S position
connects the master clock input of the ADAU1781 to Pin 3 on
Serial Audio Interface Header J4, which is labeled MCKI.
INPUTS AND OUTPUTS
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, the corresponding
pins cannot be used for the serial audio interface.
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.
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.
Stereo Line Input
COMMUNICATIONS HEADER
The stereo input jack, J19, accepts a standard stereo TRS 1/8-inch
mini-plug with two channels of audio.
The Communications Header J1 connects to the EVALADUSB2EBZ. More information about the USBi can be found
in the AN-1006 Application Note.
Digital Microphones
Digital microphones can be connected to Header J12.
Analog Microphones
Two INMP401 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.
SERIAL AUDIO INTERFACE
The ADAU1781 uses I2C communications protocol by default.
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.
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. A | Page 11 of 23
J19
3
2
4
OUTPUT
1
M2
RING
TIP
SLEEVE
INMP401A_MEMS_MIC
0.10uF
C49
VDD
5
Analog Mic 1
3V3DD
Figure 38. Evaluation Board Schematic—SigmaDSP, Analog I/O, and Master Clock Generation
BEEP input
J17
1
M1
SLEEVE
TIP
RING
INMP401A_MEMS_MIC
3
2
4
OUTPUT
VDD
5
Analog Mic 2
0.10uF
C47
3V3DD
J20
STX-3150-5C
Differential Input 2
0.10uF
C12
R22
49k9
49k9
R24
2k00
R33
MICBIAS
1k00
R21
1k00
R23
J13
C17
OPEN
OPEN
C21
0R00
R30
49k9
R32
R28
R29
0R00
C24
OPEN
C29
OPEN
C28 10uF
49k9
R27
49k9
R25
0R00
10uF
C16
10uF
C20
49k9
R26
0R00
R31
OPEN
C26
OPEN
C27
10uF
R52
10uF
C22
10uF
C23
10k0
5
6
8
1
2
4
S4-B
S4-A
Input
Select
Switch
7
3
10uF
TP6
MCKO
SCL/CCLK
SDA/COUT
R12
5
2
18
32
C6
12
5
DVDD_OUT
S3
MCKO
MCKI
SCL/CCLK
SDA/COUT
ADDR0/CDATA
4
6
3
1
33
6
3
U1
ADAU1381B_QFN
ADDR1/CLATCH
BEEP
PDN
RMICP
RMIC/RMICN/MICD2
LMICP
LMIC/LMICN/MICD1
4
TP7
3V3DD
C3
0.10uF
10uF
J10
+
DPDT_SLIDE_VERT_EG2207
49R9
17
8
9
11
10
ADDR0/CDATA
31
2
28
27
29
30
0.10uF
C31
IOVDD
ADDR1/CLATCH
PDN
0.10uF
MICBIAS
C2
C39
+
C25
MICD1
19
AVDD
23
CM
LRCLK
BCLK
ADC_SDATA
DAC_SDATA
GPIO
AOUTR
AOUTL
SPP
SPN
TP9
1
C38
2.2pF
R48
49R9
49R9
R45
3V3DD
C4
C14
10uF
OUTPUT
3
EXT_MCLK
LRCLK
BCLK
ADC_SDATA
R13
R14
0.10uF
TP5
DAC_SDATA
TP10
TP11
+
49R9
R9
C9
0.10uF
49R9
15 R10
16
49R9
GPIO
14 R11
13
7
25
26
22
20
C5
0.10uF
J11
J9
C30
0.10uF
Stereo Single-Ended Input
J21
STX-3150-5C
GND
C7
10uF
+
C40
47uF
+
Stereo Digital Mic Input
5
6
3
2
OE 1
100pF
+
-
7
R19
10R0
R18
10R0
COMPANY:
0.10uF
C36
1
L1
2
C19
3V3DD
+
220uF
C18
+
220uF
Stereo HP Amplifier
AD8397ARDZ
O
U2-B
10k0
R15
1
AD8397ARDZ
O
U2-A
C8
+
-
10k0
R16
12.288MHz
VDD
U4
2 GND
4
10k0
10k0
C11
100pF
R53
10k0
+
1
2
Speaker Out
SP1
10k0
R57
RING
TIP
SLEEVE
J18
Stereo Single-Ended Output
J8
SPRING_2TERM_LEVER_TH
2
8OHM_SPEAKER_PROJUNL_1508MS
1
J6
Differential Input 1
GND
GND
MIC_BIAS
GND
GND
2k00
R20
DVDDOUT
DGND
J14
10uF
C15
IOVDD
THERM_PAD
AVDD
AGND
AVDD2
AGND2
J5
MICBIAS
08314-038
R34
49k9
Rev. A | Page 12 of 23
GND
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EVAL-ADAU1781Z User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK
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08314-039
EVAL-ADAU1781Z User Guide
08314-040
Figure 39. Evaluation Board Schematic—Digital Microphone Interface
08314-041
Figure 40. Evaluation Board Schematic—Serial Audio Data Interface
Figure 41. Evaluation Board Schematic—Power Supply
Rev. A | Page 13 of 23
EVAL-ADAU1781Z User Guide
08314-042
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08314-043
Figure 42. Evaluation Board Schematic—GPIO Interface
Figure 43. Evaluation Board Schematic—Communications Interface
Rev. A | Page 14 of 23
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08314-044
EVAL-ADAU1781Z User Guide
Figure 44. Evaluation Board Layout—Top Assembly
Rev. A | Page 15 of 23
EVAL-ADAU1781Z User Guide
08314-045
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Figure 45. Evaluation Board Layout—Top Copper
Rev. A | Page 16 of 23
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08314-046
EVAL-ADAU1781Z User Guide
Figure 46. Evaluation Board Layout—Power Plane
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EVAL-ADAU1781Z User Guide
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Figure 47. Evaluation Board Layout—Ground Plane
Rev. A | Page 18 of 23
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08314-048
EVAL-ADAU1781Z User Guide
Figure 48. Evaluation Board Layout—Bottom Copper
Rev. A | Page 19 of 23
EVAL-ADAU1781Z User Guide
08314-049
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Figure 49. Evaluation Board Layout—Bottom Assembly
Rev. A | Page 20 of 23
EVAL-ADAU1781Z User Guide
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ORDERING INFORMATION
BILL OF MATERIALS
Table 1.
Qty.
19
7
2
7
3
7
Designator
C1, C2, C4 to C6,
C9, C12, C30, C31,
C33, C35 to C37,
C41 to C44,
C47, C49
C3, C7, C14, C32,
C34, C39, C45
C8, C11
C10, C17, C21,
C26 to C29
C13, C46, C48
2
C15, C16, C20,
C22 to C25
C18, C19
1
C38
1
1
C40
C50
16
R1, R2, R13 to R17,
R39, R43, R46, R47,
R52 to R55, R57
R3, R4, R7, R8
4
11
2
7
2
6
2
7
R5, R6, R9 to R12,
R45, R48, R50,
R51, R56
R18, R19
R20, R22, R24, R27,
R29, R30, R32
R21, R23
R25, R26, R28, R31,
R35, R37
R33, R34
1
R36, R38, R40 to
R42, R44, R49
SP1
1
U1
1
U2
1
U3
Description
Multilayer ceramic, 16 V,
X7R (0402)
Value
0.10 μF
Manufacturer
Panasonic EC
Part Number
ECJ-0EX1C104K
SMD tantalum capacitor,
0805, 6.3 V
Multilayer ceramic, 50 V,
NP0 (0402)
Do not insert
10 μF
Rohm Semiconductor
TCP0J106M8R
100 pF
Murata ENA
GCM1555C1H101JZ13D
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)
Tantalum capacitor, 105°C SMD
Multilayer ceramic, 25 V,
NP0 (0603)
Chip resistor, 1%, 63 mW,
thick film, 0402
1.0 μF
Taiyo Yuden
EMK107BJ105KA-TR
10 μF
Murata ENA
GRM21BR71A106KE51L
220 μF
Nichicon
F930J227MNC
2.2 pF
Johanson Tech
500R07S2R2BV4T
47 μF
10 nF
Kemet
TDK Corp.
T520B476M010ATE035
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
0Ω
Panasonic EC
ERJ-2GE0R00X
2 kΩ
Panasonic EC
ERJ-2RKF2001X
Open
Do not insert
Do not insert
8 Ω PC mount
Projects Unlimited
SMS-1508MS-R
ADAU1781
Analog Devices
ADAU1781
AD8397ARDZ
Analog Devices
AD8397ARDZ
ADP3339AKCZ-3.3-R7
Analog Devices
ADP3339AKCZ-3.3-R7
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
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
Rev. A | Page 21 of 23
UG-177
EVAL-ADAU1781Z User Guide
Qty.
1
Designator
U4
J3
Description
12.288 MHz 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)
DPDT slide switch vertical
Switch slide, DP3T,
PC mount, L = 4 mm
Chip ferrite bead
2-pin header unshrouded
jumper, 0.10", use shunt
Tyco 881545-2
10-way shroud polarized
header
3-position SIP header
2
U5, U6
1
U7
2
M1, M2
2
S1, S2
1
1
S3
S4
1
8
L1
J1, J5, J6, J9 to J11,
J13, J14
1
J2
1
1
J4
Header, 12-way, unshrouded
2×6
1
J7
Header, 10-way, unshrouded
2×5
1
J8
14-30 AWG spring clamp
1
J12
2-position spring terminal
block
12-way socket unshrouded
1
1
3
2
J15
J16
J17 to J19
J20, J21
2
D1, D4
1
D2
1
D3
3
D5 to D7
13
TP1 to TP13
2-pin header R/A, 100 mil gold
Power supply connector
Sterero mini-jack
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
Mini-test point, white, 0.1" OD
Value
12.288 MHz
Manufacturer
Abracon Corp.
Part Number
AP3S-12.288MHz-F-J-B
FXLP34P5X
Fairchild Semiconductor
FXLP34P5X
ADP1711AUJZ-1.8-R7
Analog Devices
ADP1711AUJZ-1.8-R7
INMP401
InvenSense
INMP401
70 gf
Omron Electronics
B3M-6009
DPDT slide
2P3T slide
E-Switch
E-Switch
EG2207
EG2305
600 Ω at 100 MHz
2-pin jumper
TDK Corp.
Sullins Connector
Solutions
MMZ1005S601C
PBC02SAAN or
cut PBC36SAAN
2×5
3M
N2510-6002RB
3-pin jumper
Sullins Connector
Solutions
Sullins Connector
Solutions
Sullins Connector
Solutions
On-Shore Tech
PBC03SAAN or
cut PBC36SAAN
PBC06DAAN
PPPC062LFBN-RC
22-12-2-24
RAPC722X
SJ-3523-SMT
STX-3150-5C
Sullins Connector
Solutions
Molex
Switchcraft, Inc.
CUI Inc.
Kycon
22-12-2024
RAPC722X
SJ-3523-SMT
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
5002
Keystone Electronics
5002
2×6
RELATED LINKS
Resource
ADAU1781
INMP401
AN-1006
Description
Product Page, SigmaDSP Low-Noise Stereo Audio Codec for Portable Applications
Product Page, Omnidirectional Microphone with Bottom Port and Analog Output
Application Note, Using the EVAL-ADUSB2EBZ
Rev. A | Page 22 of 23
PBC05DAAN
OSTHT020080
EVAL-ADAU1781Z User Guide
UG-177
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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UG08314-0-1/15(A)
Rev. A | Page 23 of 23