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Evaluation Board User Guide

UG-477

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

Four ADC, Two DAC Low Power Codec

with Audio Processor

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

Rev. A | Page 1 of 28

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

data sheet

Applications Note,

Using the

EVAL-ADUSB2EBZ

GENERAL DESCRIPTION

This user guide explains the design and setup of the

evaluation board.

This evaluation board provides full access to all analog and digital
I/Os on the

core is controlled by

Analog Devices, Inc., SigmaStudio™ software, which interfaces to
the board via a USB connection. The

can be

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.

EVAL-ADAU1772Z

EVALUATION BOARD TOP SIDE AND BOTTOM SIDE

1

1023-

001

Figure 1.

EVAL-ADAU1772Z

Evaluation Board Top Side

1

1023-

002

Figure 2.

EVAL-ADAU1772Z

Evaluation Board Bottom Side

1
2
3
...
»

Содержание EVAL-ADUSB2EBZ

Страница 1: ...1772Z evaluation board This evaluation board provides full access to all analog and digital I Os on the ADAU1772 The ADAU1772 core is controlled by Analog Devices Inc SigmaStudio software which interfaces to the board via a USB connection The EVAL ADAU1772Z can be 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 o...

Страница 2: ...ings 6 Powering Up the Board 6 Connecting the Audio Cables 6 Setting Up Communications in SigmaStudio 6 Creating a Basic Signal Flow 7 Downloading the Program to the DSP 9 Using the Evaluation Board 10 Power 10 Inputs and Outputs 10 MP Pins 12 Serial Audio Interface 13 Communications Header J1 14 Self Boot 14 Power Down 14 Hardware Description 15 Jumpers 15 Integrated Circuits IC 15 LED 15 Evaluat...

Страница 3: ...ERIAL AUDIO CONNECTOR MP PINS DIFFERENTIAL STEREO OUTPUT SINGLE ENDED STEREO OUTPUT XTAL OSCILLATOR MASTER CLOCK ADAU1772 11023 003 Figure 3 Functional Block Diagram MP PINS POWER SUPPLY COMMUNICATIONS HEADER SELF BOOT EEPROM SERIAL AUDIO CONNECTOR PDM DIGITAL MIC INPUTS CLOCK XTAL ANALOG MIC INPUTS STEREO LINE INPUT POWER BYPASS SWITCH DIFF STEREO OUTPUT SINGLE ENDED STEREO OUTPUT ADAU1772 11023 ...

Страница 4: ...UG 477 Evaluation Board User Guide Rev A Page 4 of 28 11023 005 Figure 5 Default Jumper and Switch Settings A Solid Black Rectangle Indicates a Switch or Jumper Position ...

Страница 5: ... the USBi to an available USB port with the included USB cable At this point Windows XP recognizes the device see Figure 6 and prompts the user to install drivers 11023 006 Figure 6 Found New Hardware Notification Select the Install from a list or specific location Advanced option and click Next see Figure 7 11023 007 Figure 7 Found New Hardware Wizard Installation Click Search for the best driver...

Страница 6: ...reo In J22 Right 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 select it in the Communication Channels subsection of the toolbox on the left side of the...

Страница 7: ...thin the IO Audio Input folder see Figure 18 11023 017 Figure 18 Input Cell Selection Click and drag the Input cell into the blank schematic space to the right of the Toolbox see Figure 19 11023 018 Figure 19 Input Cell Because Input 2 and Input 3 are being used as a stereo pair deselect the 0 and 1 and select the 2 and 3 see Figure 20 11023 019 Figure 20 Input 2 and Input 3 Selected Navigate to t...

Страница 8: ...n the bottom left corner the IC 1 ADAU1772 Register Control tab is seen see Figure 25 11023 024 Figure 25 ADAU1772 Register Control Tab Click it and find the Output Serial Port tab in the top right corner In the bottom left corner of the Output Serial Port tab the Push Button Vol section is located Locate the drop down menu for Converters Controlled by PushButton Volume and change its value to All...

Страница 9: ...ternately press the F7 key 11023 027 Figure 28 Link Compile Download Button If the project does not compile correctly an error displays see Figure 29 If this occurs go back and check your work for mistakes 11023 028 Figure 29 Compile Error The signal flow should now be running on the evaluation board and the audio should pass from the input to the output The volume can be changed in real time by u...

Страница 10: ...Figure 31 11023 030 Figure 31 Power Jumpers INPUTS AND OUTPUTS The EVAL ADAU1772Z has multiple audio input and output options including digital and analog There are four single ended analog inputs that are configurable as microphone or line inputs dual stereo digital microphone inputs and two differential outputs that can also be used in a single ended configuration Analog Microphone Inputs For mi...

Страница 11: ...XTAL To Main Blocks CLOCKOUT Figure 35 Clock Output Enabled Divided Now set the input of the ADAU1772 to be the digital microphones instead of the ADCs by toggling the appropriate Decimator Source settings Navigate to the PGA ADC tab to find and set the following switches see Figure 36 11023 035 Figure 36 Decimator Source The digital microphones can now be routed via the appropriate inputs on the ...

Страница 12: ... OUT 11023 038 Figure 39 PDM Output and Clock Output Pins MP PINS The MP pin jumpers Header J9 provide access to the MP pins MP0 MP1 MP2 MP3 and MP6 of the ADAU1772 as well as facilitate the use of the push buttons on the EVAL ADAU1772Z board See Figure 53 for the pinout of the header These jumpers are used to enable the use of the volume control mute and other capabilities of the ADAU1772 To use ...

Страница 13: ...d The connections can be located on the J4 header The silk screen above the header helps identify where to connect the clocks and data see Figure 42 11023 041 Figure 42 Serial Audio Port Once connected use SigmaStudio to set the registers for the desired operation In the Output Serial Port tab under the Serial Port Control section the settings can be manipulated to create the specific data stream ...

Страница 14: ...ore writing to the E2PROM ensure that it has been erased by clearing it from SigmaStudio To do this right click on E2Prom select the Read Write window and click Clear E2Pro to clear the memory see Figure 47 11023 046 Figure 47 Clear E2pro To Link Compile Download the project see Figure 28 right click on ADAU1772 and select Write Latest Compilation to E2PROM see Figure 48 11023 047 Figure 48 Write ...

Страница 15: ...DD VDD Jumper connects IOVDD on the ADAU1772 to VDD 3 3 V board supply on the evaluation board J11 J14 Microphone bias Jumpers used to add a microphone bias to the analog microphone inputs AIN0 and AIN1 J12 DVDD regulator REG Jumper connects DVDD on the ADAU1772 to its internal regulator J13 Out R Jumper provides access to the mono differential output right J15 Power down Jumper used to power down...

Страница 16: ...0 AV DD 11 AGND 1 3 AIN 1 RE F 1 4 AIN1 1 5 AIN 2 RE F 1 6 AIN2 1 2 CM 1 7 AIN 3 RE F 1 8 AIN3 19 AV DD 20 AGND 23 AGND 24 AV DD 2 1 H POU TL N L OU TL N 2 2 H POU TL P L OU TL P 2 5 H POU TRN L OU TRN 2 6 H POU TRP L OU TRP 2 7 PD 40 IOVDD 28 REG_OUT 30 DGND 3 1 L RCL K M P3 3 2 BCL K M P2 3 3 DAC_ SDATA M P0 3 4 ADC_ SDATA0 PD M OU T M P1 3 8 XTAL O 3 9 XTAL I M CL KIN 3 5 ADC_ SDATA1 CL KOU T M...

Страница 17: ...tion Board Schematic PDM Digital Microphone Interface Serial Audio Interface R29 49R9 1 3 5 7 9 2 4 6 8 10 12 11 J4 HEADER_12WAY_UNSHROUD LRCLK MP3 BCLK MP2 DAC_SDATA MP0 ADC_SDATA0 PDMOUT MP1 ADC_SDATA1 CLKOUT MP6 EXT_MCLK 11023 051 Figure 52 EVAL ADAU1772Z Evaluation Board Schematic Serial Audio Interface VOL VOL DSP Bypass A Mute B Bank Switch MP PIN JUMPERS R37 10k0 R38 10k0 R39 10k0 R40 10k0 ...

Страница 18: ...EN 6 VOUT 5 SW 3 FB 7 EP 4 G ND U4 ADP 1607 ACPZ R7 L1 2 2uH 3 EN 2 GND 1 IN 5 OUT 4 BYP U3 ADP 1713 AUJZ 1 5 R7 C26 10 uF C23 10 nF B A J3 C24 VDD BRD_RESET USB _5 V IOVDD EXT_5 V 11023 053 Figure 54 EVAL ADAU1772Z Evaluation Board Schematic Power Supply Control Port Interface 1 3 5 7 9 2 4 6 8 10 J1 HEADER_10WAY_POL R15 2k67 R14 2k67 C22 0 10uF R19 OPEN R16 OPEN R17 OPEN R22 OPEN R21 OPEN R20 OP...

Страница 19: ...Evaluation Board User Guide UG 477 Rev A Page 19 of 28 11023 055 Figure 56 EVAL ADAU1772Z Evaluation Board Layout Top Assembly ...

Страница 20: ...UG 477 Evaluation Board User Guide Rev A Page 20 of 28 11023 056 Figure 57 EVAL ADAU1772Z Evaluation Board Layout Top Copper ...

Страница 21: ...Evaluation Board User Guide UG 477 Rev A Page 21 of 28 11023 057 Figure 58 EVAL ADAU1772Z Evaluation Board Layout Power Plane ...

Страница 22: ...UG 477 Evaluation Board User Guide Rev A Page 22 of 28 11023 058 Figure 59 EVAL ADAU1772Z Evaluation Board Layout Ground Plane ...

Страница 23: ...Evaluation Board User Guide UG 477 Rev A Page 23 of 28 11023 059 Figure 60 EVAL ADAU1772Z Evaluation Board Layout Bottom Copper ...

Страница 24: ...UG 477 Evaluation Board User Guide Rev A Page 24 of 28 11023 060 Figure 61 EVAL ADAU1772Z Evaluation Board Layout Bottom Assembly ...

Страница 25: ...5 2 67 kΩ chip resistor 1 63 mW thick film 0402 CRCW04022K67FKED Vishay Dale 5 R4 to R8 33 2 Ω chip resistor 1 63 mW thick film 0402 RMCF0402FT33R2 Stackpole 1 R27 374 kΩ chip resistor 1 63 mW thick film 0402 ERJ 2RKF3743X Panasonic ECG 2 C44 to C45 470 µF SMD tantalum capacitor SMD D 6 3 V TR3D477M6R3C0200 Vishay Sprague 4 C1 to C2 C8 C10 47 0 µF ceramic capacitor 6 3 V X7R 1210 GCM32ER70J476KE19...

Страница 26: ...APC722X Switchcraft 2 J6 to J7 12 way socket unshrouded 2 6 PPPC062LFBN RC 3M 2 S1 to S2 SPDT slide switch PC mount EG1271 E Switch 1 S3 2 section SPST SMD switch raised act 219 2LPST CTS Corporation 3 S4 to S6 Tact switch long stroke normally open B3M 6009 Omron Electronics 7 TP1 to TP7 Mini test point white 0 1 OD 5002 Keystone Electronics ...

Страница 27: ...Evaluation Board User Guide UG 477 Rev A Page 27 of 28 NOTES ...

Страница 28: ...ny portion of the Evaluation Board to any other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Customer may not disassemble decompile or reverse engineer chips on the Evaluation Board Customer shall inform ADI of any occurred damages or any modifications...

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