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One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 •
Evaluating the
EVAL-ADAU1772Z
PACKAGE CONTENTS
EVAL-ADAU1772Z
evaluation board
EVAL-ADUSB2EBZ
(USBi) communications adapter
USB cable with Mini-B plug
Evaluation board/software quick start guide
DOCUMENTS NEEDED
ADAU1772
data sheet
AN-1006
Applications Note, Using the
EVAL-ADAU1772Z
Figure 1.
EVAL-ADAU1772Z
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
ADAU1772
Four ADC, Two DAC Low Power Codec
with Audio Processor
EVAL-ADUSB2EBZ
EVALUATION BOARD TOP SIDE AND BOTTOM SIDE
Evaluation Board Top Side
Evaluation Board User Guide
GENERAL DESCRIPTION
This user guide explains the design and setup of the
ADAU1772Z
evaluation board.
This evaluation board provides full access to all analog and digital
I/Os on the ADAU1772. The
Analog Devices, Inc., SigmaStudio™ software, which interfaces to
the board via a USB connection. The
powered by a single AAA battery, by the USB bus, or by a single
3.8 V to 6 V supply; any of these are regulated to the voltages
required on the board. The printed circuit board (PCB) is a 4-layer
design, with a single ground plane and a single power plane on the
inner layers. The board contains connectors for external micro-
phones and speakers. The master clock can be provided externally
or by the on-board 12.288 MHz passive crystal.
Figure 2.
Rev. A | Page 1 of 28
ADAU1772
core is controlled by
EVAL-ADAU1772Z
EVAL-ADAU1772Z
Evaluation Board Bottom Side
UG-477
www.analog.com
EVAL-
can be
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Summary of Contents for Analog Devices EVAL-ADUSB2EBZ
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Page 1: Eval-Adau1772Z Package Contents
This evaluation board provides full access to all analog and digital Evaluation board/software quick start guide I/Os on the ADAU1772. The ADAU1772 core is controlled by Analog Devices, Inc., SigmaStudio™ software, which interfaces to DOCUMENTS NEEDED the board via a USB connection. The EVAL-ADAU1772Z can be... -
Page 2: Table Of Contents
UG-477 Evaluation Board User Guide TABLE OF CONTENTS EVAL-ADAU1772Z Package Contents .......... 1 Using the Evaluation Board ............10 Documents Needed ................1 Power.................... 10 General Description ................. 1 Inputs and Outputs ..............10 EVAL-ADAU1772Z Evaluation Board Top Side and MP Pins.................. -
Page 3: Evaluation Board Block Diagrams
Evaluation Board User Guide UG-477 EVALUATION BOARD BLOCK DIAGRAMS POWER C/SPI POWER/ SUPPLY COMMUNICATIONS BYPASS REGULATION HEADER SWITCH SELF-BOOT EEPROM PINS ANALOG MIC INPUTS ADAU1772 STEREO LINE INPUT DIFFERENTIAL STEREO OUTPUT DIGITAL MIC INPUTS SINGLE-ENDED SERIAL AUDIO STEREO OUTPUT CONNECTOR MASTER CLOCK XTAL... - Page 4 UG-477 Evaluation Board User Guide Figure 5. Default Jumper and Switch Settings (A Solid Black Rectangle Indicates a Switch or Jumper Position) Rev. A | Page 4 of 28...
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Page 5: Setting Up The Evaluation Board
Evaluation Board User Guide UG-477 SETTING UP THE EVALUATION BOARD INSTALLING THE SigmaStudio SOFTWARE Users can download the latest version of SigmaStudio by completing the following steps: 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 Devices at sigmadsp@analog.com... -
Page 6: Default Switch And Jumper Settings
UG-477 Evaluation Board User Guide DEFAULT SWITCH AND JUMPER SETTINGS To use the USBi in conjunction with SigmaStudio, select it in the Communication Channels subsection of the toolbox on the left The J8, J10, J12, and J17 jumpers must be connected, and the J3 side of the Hardware Configuration tab, and add it to the project jumper must be set to the USB/EXT power setting. -
Page 7: Creating A Basic Signal Flow
Evaluation Board User Guide UG-477 Figure 16. Connecting the USB Interface to an ADAU1772 Because Input 2 and Input 3 are being used as a stereo pair, CREATING A BASIC SIGNAL FLOW deselect the 0 and 1 and select the 2 and 3 (see Figure 20). 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 17). - Page 8 UG-477 Evaluation Board User Guide the Push Button Vol section is located. Locate the drop-down menu for Converters Controlled by PushButton Volume: and change its value to All ADCs (see Figure 26). Figure 22. Output Cells Connect the cells together by left-clicking a blue output dot and dragging to the green output dot of the next cell, connecting the Input 2 to OUT0 and Input 3 to OUT1 (see Figure 23).
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Page 9: Downloading The Program To The Dsp
Evaluation Board User Guide UG-477 DOWNLOADING THE PROGRAM TO THE DSP To compile and download the code to the DSP, click the Link-Compile-Download button once in the main toolbar of SigmaStudio (see Figure 28). Alternately, press the F7 key. Figure 28. Link-Compile-Download Button If the project does not compile correctly, an error displays (see Figure 29). -
Page 10: Using The Evaluation Board
When Jumper J3 is in the USB/EXT position, power gain amplifier (PGA) mode. can be supplied by connecting the EVAL-ADUSB2EBZ (USBi) board connected to J1 (see Figure 30) or by connecting a tip Microphone Bias positive 3.8 V dc to 6 V dc power supply on J2. - Page 11 The stereo input jack, J22, accepts a standard stereo TRS 1/8-inch mini-plug (tip = left, ring = right) with two channels of audio. Digital Microphones PDM digital microphones can be connected to standard 0.100” headers (J6 and J7). For example, the Analog Devices ADMP521 digital microphone on the ADMP521Z evaluation board plugs directly into the header.
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Page 12: Mp Pins
UG-477 Evaluation Board User Guide PDM Modulator Output MP PINS ADAU1772 has a 2-channel PDM modulator. The PDM The MP pin jumpers, Header J9, provide access to the MP pins output and clock source are both located on the MP pins. To use (MP0, MP1, MP2, MP3, and MP6) of the ADAU1772, as well as this functionality, set ADC_SDATA0/PDMOUT/MP1 to PDM facilitate the use of the push-buttons on the... -
Page 13: Serial Audio Interface
Evaluation Board User Guide UG-477 SERIAL AUDIO INTERFACE Once connected, use SigmaStudio to set the registers for the desired operation. In the Output/Serial Port tab, under the Serial audio signals in I S, left justified, right justified, or TDM Serial Port Control section, the settings can be manipulated to format are available via the Serial Audio Interface Header J4. -
Page 14: Communications Header (J1)
ADAU1772 boots from the E2PROM when it powers up. Figure 45. Signal Routing COMMUNICATIONS HEADER (J1) J1 connects to the EVAL-ADUSB2EBZ USBi. More information about the USBi can be found in Application Note AN-1006. The IC defaults to I C mode; however, it can be put into SPI control mode by pulling the CLATCH pin low three times. -
Page 15: Hardware Description
Evaluation Board User Guide UG-477 HARDWARE DESCRIPTION JUMPERS Table 1. Connector and Jack Descriptions Reference Functional Name Description Control port It facilitates communication between the evaluation board and USBi board. 5 V dc input It provides external power to the board. It accepts 3.8 V dc to 6 V dc input. Power select Jumper used to select power source for the evaluation board. -
Page 16: Evaluation Board Schematics And Artwork
UG-477 Evaluation Board User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK Figure 50. EVAL-ADAU1772Z Evaluation Board Schematic—Digital and Analog I/O, Master Clock Generation Rev. A | Page 16 of 28... - Page 17 Evaluation Board User Guide UG-477 PDM Digital Microphone Inputs IOVDD DMIC_0_1 10k0 ADC_SDATA1/CLKOUT/MP6 10k0 POLARIZINGPLUG POLARIZINGPLUG 100R SOCKET_12WAY_UNSHROUD IOVDD DMIC_2_3 10k0 10k0 ADC_SDATA1/CLKOUT/MP6 POLARIZINGPLUG POLARIZINGPLUG 100R SOCKET_12WAY_UNSHROUD Figure 51. EVAL-ADAU1772Z Evaluation Board Schematic—PDM Digital Microphone Interface Serial Audio Interface HEADER_12WAY_UNSHROUD EXT_MCLK LRCLK/MP3 49R9...
- Page 18 UG-477 Evaluation Board User Guide U SB _5 V 2 .2 u H IOVDD PWR SEL ADP 1713 AU JZ-1 .5 -R7 OU T USB/EXT ADP 1607 ACPZ -R7 E XT_5 V J1 0 VOU T BATT RAPC722 X R2 5 R2 8 10 k0 VDD SEL...
- Page 19 Evaluation Board User Guide UG-477 Figure 56. EVAL-ADAU1772Z Evaluation Board Layout—Top Assembly Rev. A | Page 19 of 28...
- Page 20 UG-477 Evaluation Board User Guide Figure 57. EVAL-ADAU1772Z Evaluation Board Layout—Top Copper Rev. A | Page 20 of 28...
- Page 21 Evaluation Board User Guide UG-477 Figure 58. EVAL-ADAU1772Z Evaluation Board Layout—Power Plane Rev. A | Page 21 of 28...
- Page 22 UG-477 Evaluation Board User Guide Figure 59. EVAL-ADAU1772Z Evaluation Board Layout—Ground Plane Rev. A | Page 22 of 28...
- Page 23 Evaluation Board User Guide UG-477 Figure 60. EVAL-ADAU1772Z Evaluation Board Layout—Bottom Copper Rev. A | Page 23 of 28...
- Page 24 UG-477 Evaluation Board User Guide Figure 61. EVAL-ADAU1772Z Evaluation Board Layout—Bottom Assembly Rev. A | Page 24 of 28...
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Page 25: Ordering Information
ASE4204 Tyco Electronics 12.288 MHz crystal, SMT, 18 pF ABM3B-12.288MHZ-10-1-U-T Abracon Corporation Four ADC, two DAC ANC Codec ADAU1772 Analog Devices Synchronous boost dc-to-dc converter ADP1607ACPZ-R7 Analog Devices Fixed low dropout voltage regulator ADP1713AUJZ-1.5-R7 Analog Devices 10-way shroud polarized header, 2 × 5 N2510-6002RB 10-way unshrouded jumper, 2 ×... - Page 26 UG-477 Evaluation Board User Guide Qty. Designator Description Part Number Manufacturer Mini power jack, 0.08", R/A, TH RAPC722X Switchcraft J6 to J7 12-way socket unshrouded, 2 × 6 PPPC062LFBN-RC S1 to S2 SPDT slide switch PC mount EG1271 E-Switch 2 section SPST SMD switch raised act 219-2LPST CTS Corporation S4 to S6...
- Page 27 Evaluation Board User Guide UG-477 NOTES Rev. A | Page 27 of 28...
- Page 28 By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions 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.
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