Analog Devices EVAL-ADAU1466Z User Manual
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Analog Devices EVAL-ADAU1466Z User Manual

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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
FEATURES
4 analog inputs
8 analog outputs
Stereo S/PDIF input and output
Self boot EEPROM memory
EVALUATION KIT CONTENTS
EVAL-ADAU1466Z evaluation board
EVAL-ADUSB2EBZ
(USBi) communications adapter
USB cable with Mini-B plug
6 V ac to dc power supply
HARDWARE REQUIRED
PC running Windows XP, Windows Vista, or Windows 7
Analog, stereo audio source with an output cable terminated
with a 3.5 mm (1/8 inch) plug (for analog input)
Headphones, desktop speakers, or audio input with a cable
terminated with a 3.5 mm (1/8 inch) plug (for analog
output)
S/PDIF audio source and receiver, each with optical cables
terminated with TOSLINK connectors (for digital
input/output)
SOFTWARE REQUIRED
SigmaStudio
software, available for download from the
SigmaStudio
product page
DOCUMENTS NEEDED
ADAU1466
data sheet
AD1938
data sheet
AN-1006 Application Note
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
EVAL-ADAU1466Z
ADAU1466 SigmaDSP
GENERAL DESCRIPTION
This user guide details the design, setup, and operation of the
EVAL-ADAU1466Z evaluation board. This device is suitable for
evaluation of, and software development for, the
and
and the
ADAU1466
ADAU1462. When using this evaluation board to evaluate the
ADAU1462, in the Setting Up Communications in SigmaStudio
section, select the
as shown in Figure 15. Performing this action informs the compiler
to limit the amount of memory allocated to match the ADAU1462.
All other procedures and instructions in this user guide are
identical for the
This evaluation board provides access to the digital serial audio
ports of the ADAU1466, as well as some of its general-purpose
input/outputs (GPIOs). An analog input and output is provided
by the
ADAU1466
SigmaStudio® software, which interfaces to the evaluation board
via a USB interface (USBi). The on-board EEPROM can be
programmed for self boot mode. The evaluation board is powered
by a 6 V dc supply, which is regulated to the voltages required
on the board. The printed circuit board (PCB) is a 4-layer design,
with a ground plane and a power plane on the inner layers. The
evaluation board includes connectors for external analog inputs
and outputs, and optical Sony/Philips Digital Interface (S/PDIF)
interfaces. The master clock is provided by the integrated oscillator
circuit and the on-board 12.288 MHz passive crystal.
For full details, see the
which must be used in conjunction with this user guide when
using the evaluation board.
Rev. 0 | Page 1 of 45
Audio Processor
ADAU1462 SigmaDSP
processors. Note that the
ADAU1462
are functionally identical, except that the
has more program and data memory than the
ADAU1462
block rather than the
ADAU1462
and ADAU1466.
AD1938
codec that is included in the evaluation kit. The
core is programmed using Analog Devices, Inc.,
ADAU1466
User Guide
UG-1135
www.analog.com
ADAU1466
ADAU1466
ADAU1466
and
AD1938
data sheets,

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Summary of Contents for Analog Devices EVAL-ADAU1466Z

  • Page 1 GENERAL DESCRIPTION This user guide details the design, setup, and operation of the 4 analog inputs 8 analog outputs EVAL-ADAU1466Z evaluation board. This device is suitable for evaluation of, and software development for, the ADAU1466 Stereo S/PDIF input and output...
  • Page 2 General Description ................. 1 Auxiliary ADC Pins ..............21 Revision History ................2 Communications Header ............21 EVAL-ADAU1466Z Evaluation Board Photograph ....3 Self Boot ................... 22 Setting Up the Evaluation Board ............ 4 Reset ..................... 24 Installing the SigmaStudio Software .......... 4 Status LEDs .................

  • Page 3: Eval-Adau1466Z Evaluation Board Photograph

    EVAL-ADAU1466Z User Guide UG-1135 EVAL-ADAU1466Z EVALUATION BOARD PHOTOGRAPH Figure 1. Rev. 0 | Page 3 of 45...

  • Page 4: Setting Up The Evaluation Board

    UG-1135 EVAL-ADAU1466Z User Guide SETTING UP THE EVALUATION BOARD Using the EVAL-ADAU1466Z evaluation board requires a PC Using Windows XP running Windows® XP or later with a USB interface and an After connecting the USBi to the USB 2.0 port, Windows internet connection.

  • Page 5: Disabling The Self Boot Switch

    In the Windows Device Manager, under the Universal Serial Bus controllers section,(see Figure 8), check that When setting up the EVAL-ADAU1466Z evaluation board, ensure Analog Devices USBi (programmed) is displayed. that the first switch of the four-position DIP switches, S3, is in the off position, which is away from the printed label on the evaluation board.

  • Page 6: Powering Up The Evaluation Board

    Connect the female plug of the power supply to the J4 male 3.5 mm (1/8 inch) stereo tip, ring, sleeve (TRS) audio cable. connector on the EVAL-ADAU1466Z, as shown in The audio signals must be single-ended and line level, with a Figure 9.
  • Page 7 EVAL-ADAU1466Z User Guide UG-1135 Figure 13. Location of Stereo Output OUT1 (J10) and Stereo Input IN1 (J9), Rotated 90° Rev. 0 | Page 7 of 45...
  • Page 8 UG-1135 EVAL-ADAU1466Z User Guide SETTING UP COMMUNICATIONS IN SigmaStudio When SigmaStudio cannot detect the USBi on the USB port of the PC, the background of the USB label To set up communications in SigmaStudio, take the following is red (see Figure 17). This error can occur when the...

  • Page 9: Creating A Basic Signal Flow

    EVAL-ADAU1466Z User Guide UG-1135 CREATING A BASIC SIGNAL FLOW To create a signal processing flow, take the following steps: Click the Schematic tab near the top of the window (see Figure 19). Figure 19. Schematic Tab To add the appropriate elements to the project space, click...

  • Page 10: Downloading The Program To The Dsp

    Figure 24. Connected Signal Flow with Stereo Input and Stereo Output Connect the blocks as shown in Figure 27. The default register settings in SigmaStudio are configured to match the hardware of the EVAL-ADAU1466Z, including the signal routing between the ADAU1466 and the AD1938 codec.

  • Page 11: Adding S/Pdif Input And Output To The Project

    ADDING S/PDIF INPUT AND OUTPUT TO THE Compile/Download button was clicked. PROJECT The EVAL-ADAU1466Z evaluation board has two optical S/PDIF interfaces. One interface is an input that converts the optical signal to an electrical signal, which is sent to the ADAU1466 S/PDIF receiver (the SPDIFIN pin).
  • Page 12 To add an S/PDIF input and output to the project in SigmaStudio, take the following steps: Connect an S/PDIF source to the EVAL-ADAU1466Z evaluation board by using a standard TOSLINK® optical cable and connecting it to the S/PDIF receiver connector, U2 (see Figure 33).
  • Page 13 EVAL-ADAU1466Z User Guide UG-1135 Configure the S/PDIF transmitter (Tx) signal routing as follows: Click the S/PDIF TX box (see Figure 42). Figure 42. Configuring the S/PDIF Transmitter Routing Matrix Register From the dropdown menu that appears, select From DSP to choose the signal coming from the DSP core (see Figure 43).
  • Page 14 UG-1135 EVAL-ADAU1466Z User Guide Add two S/PDIF outputs to the project as follows: Add a Filter From the IO > SPDIF > Output folder, click Spdif To add a filter, take the following steps: Output (see Figure 47) and drag it into the project Add a Medium-Size Eq block to the project space as follows: space to the right of the toolbox.

  • Page 15: Controlling Volume With A Potentiometer

    EVAL-ADAU1466Z User Guide UG-1135 Connect the filter in series between the Asrc Input block and the Spdif Output blocks so that the filter can be applied to the signals passing through the DSP. The completed signal flow resembles Figure 51.
  • Page 16 UG-1135 EVAL-ADAU1466Z User Guide Add two DSP Readback blocks to the project and set their Add an Single Slew Ext Volume block to the project space numeric format as follows: as follows: From the Basic DSP > DSP Function folder, click DSP From the Volume Controls >...
  • Page 17 EVAL-ADAU1466Z User Guide UG-1135 The schematic (see Figure 58) shows audio from input Channel 0 The native audio format of the ADAU1466 is 8.24. In this example, and Channel 1 connected to the input of a volume control block. the volume control multiplies the input signal by a fractional The volume is controlled by the value of the AUXADC1 channel, value ranging from 0 (silence) to 1 (unity gain).

  • Page 18: Using The Evaluation Board

    192 kHz, the analog (see Figure 59). The output must range between 5 V and 7 V audio inputs and outputs on the EVAL-ADAU1466Z can be and must be able to source at least 1.5 A of current. Connect the distorted or silent if a sample rate other than 44.1 kHz or 48 kHz is...
  • Page 19 DSP core, meaning that the sample rate of the audio 44.1 kHz or 48 kHz. coming out of the S/PDIF transmitter on the EVAL-ADAU1466Z is typically 44.1 kHz or 48 kHz. Optionally, the S/PDIF transmitter The output filters are designed to drive high impedance loads, can be configured in a pass through mode, where it simply trans- for instance, loads from active speakers.

  • Page 20: Multipurpose (Mp) Pins

    UG-1135 EVAL-ADAU1466Z User Guide Table 3. Mapping of SigmaStudio Channels to Output Jacks Output Jack Plug Contact AD1938 DAC Pin ADAU1466 Serial Output Pin Output Channel in SigmaStudio Left (tip) SDATA_OUT0 Right (ring) SDATA_OUT0 Left (tip) SDATA_OUT1 Right (ring) SDATA_OUT1...

  • Page 21: Auxiliary Adc Pins

    EVAL-ADAU1466Z User Guide UG-1135 Table 4. Multipurpose Pins and Hardware Access Points MP Pin Connection Access Point LRCLK_OUT1/MP5 Input to inverter (LED D4) TP56 LRCLK_OUT3/MP9 Input to inverter (LED D3) TP48 LRCLK_IN1/MP11 Input to inverter (LED D5) TP29 LRCLK_IN2/MP12 Pin multiplexed with LRCLK_IN2...

  • Page 22: Self Boot

    User Guide SELF BOOT A 1 Mb, 20 MHz, SPI, serial EEPROM memory is included on the EVAL-ADAU1466Z evaluation board. The ADAU1466 capable of booting and executing a program without help from an external microcontroller. This feature allows any project developed...
  • Page 23 EVAL-ADAU1466Z User Guide UG-1135 An EEPROM Properties dialog box appears. Enter the SigmaStudio begins the EEPROM write operation. appropriate values into the text fields as shown in Figure 71, This operation can take several minutes to complete then click OK.

  • Page 24: Reset

    UG-1135 EVAL-ADAU1466Z User Guide RESET STATUS LEDS To manually reset the ADAU1466 and AD1938, press and Six status LEDs provide information about the state of the EVAL- release the RESET push-button, S1 (see Figure 74). A reset ADAU1466Z evaluation board (see Figure 76). For additional...

  • Page 25: Hardware Description

    EVAL-ADAU1466Z User Guide UG-1135 HARDWARE DESCRIPTION Table 5. IC Descriptions Reference Functional Name Description Everlight PLT133/T8 optical transmitter S/PDIF optical (TOSLINK) output. Everlight PLT133/T10W optical receiver S/PDIF optical (TOSLINK) input. ADAU1466 SigmaDSP audio processor Acts as an audio hub for all audio inputs and outputs in the system and performs digital signal processing on those input and output signals.

  • Page 26: Switch And Push-Button

    UG-1135 EVAL-ADAU1466Z User Guide SWITCH AND PUSH-BUTTON Table 7. Switch and Push-Button Descriptions Reference Functional Name Description Reset push-button When this switch is pressed and released, a reset signal is generated, which causes the ADM811TARTZ reset supervisor to generate a master reset signal for ADAU1466 and AD1938.

  • Page 27: Evaluation Board Schematics And Artwork

    EVAL-ADAU1466Z User Guide UG-1135 EVALUATION BOARD SCHEMATICS AND ARTWORK POWER SUPPLY COMMUNICATIONS REGULATION HEADER S/PDIF S/PDIF TRANSMITTER RECEIVER SELF-BOOT RESET EEPROM ADAU1466 SERIAL AUDIO STATUS LEDs CONNECTORS STEREO LINE STEREO LINE OUTPUTS INPUTS CRYSTAL RESONATOR AD1938 Figure 77. Functional Block Diagram...
  • Page 28 UG-1135 EVAL-ADAU1466Z User Guide SIGMADSP AUDIO PROCESSOR DVDD REGULATOR CIRCUIT PLL LOOP FILTER POWER SUPPLY 0Ω 5.6nF BULK DECOUPLING 1466_AVDD STD2805 1466_DVDD A_3V3 STD2805T4 4.32kΩ 150pF 1466_PVDD 1466_IOVDD D_3V3 A_3V3 1kΩ C7 0.10µF C6 0.10µF 10µF 10µF 10µF 10µF 0.10µF 0.10µF...
  • Page 29 EVAL-ADAU1466Z User Guide UG-1135 D_3V3 D_3V3 D_3V3 0.10µF 100kΩ 4.75kΩ 10kΩ SS_M/MP0 MISO_M HOLD SPDT SPDT_SLIDE_CAS-120TA_SMD SCLK_M MOSI_M/MP1 4.75kΩ 25AA1024_1MBIT_SPI_EEPROM 25AA1024-I/SM Figure 80. Self Boot Circuit Schematic D_3V3 47µH 47µH 5002 5002 SPDIFOUT SPDIFIN VOUT 33.2Ω 0.10µF 0.10µF EAPLTAA6 EAPLRAA6...
  • Page 30 UG-1135 EVAL-ADAU1466Z User Guide D_3V3 D_3V3 0.10µF U14-B 475Ω 74ACT04SC_HEXINVERTER GREEN 74ACT04SC U14-F 475Ω 74ACT04SC_HEXINVERTER GREEN 74ACT04SC U14-A 475Ω A_3V3 74ACT04SC_HEXINVERTER GREEN 74ACT04SC U14-D 475Ω SELFBOOT 74ACT04SC_HEXINVERTER GREEN 74ACT04SC U14-E 475Ω MP11 74ACT04SC_HEXINVERTER GREEN 74ACT04SC U14-C 475Ω RESET 74ACT04SC_HEXINVERTER GREEN 74ACT04SC Figure 82.
  • Page 31 EVAL-ADAU1466Z User Guide UG-1135 A_3V3 AUXADC0 Ω LINEAR AUXADC1 Ω LINEAR Figure 84. AUXADC Potentiometer Schematic D_3V3 A_3V3 C115 10µF 0.10µF 10µF 0.10µF 0.10µF 0.10µF 0.10µF DAC1L [5] [4] ADC1LP ADC1LP DAC1L [4] ADC1LN ADC1LN A_3V3 DAC1R [5] ADC1RP DAC1R...
  • Page 32 UG-1135 EVAL-ADAU1466Z User Guide DC IN 5V TO 6V ***7V DC MAX*** 5V00_UNREG A_3V3 D_3V3 5002 5002 ADP3338-3.3V 3 IN 600Ω ADP3338AKCZ-3.3-R7 RAPC722X 100MHz + C37 + C38 1.0µF 1.0µF 10µF 10µF 100µF TP37 TP66 TP63 TP17 TP35 TP39 5002...
  • Page 33 EVAL-ADAU1466Z User Guide UG-1135 IN1R C107 330pF TP71 5002 C111 10µF 4.99kΩ 4.99kΩ TP70 U17-B C113 – ADC1RN C110 49.9Ω 10µF ADA4841-2YRZ 100pF C117 100kΩ 4.99kΩ 100pF TP72 C116 R100 ADC1RP 4.99kΩ 49.9Ω RING 10µF U17-A – C114 C119 OP_AMP_REF1 1.0nF...
  • Page 34 UG-1135 EVAL-ADAU1466Z User Guide IN2R TP33 330pF 4.99kΩ 4.99kΩ 10µF TP32 U12-B ADA4841-2YRZ ADC2RN 49.9Ω 10µF 100pF 100kΩ 4.99kΩ 100pF TP34 ADC2RP 4.99kΩ 49.9Ω RING U12-A 10µF ADA4841-2YRZ OP_AMP_REF2 1.0nF 1.0nF 100Ω SLEEVE SJ-3523-SMT 0.10µF IN2L TP18 330pF 5V00_UNREG 4.99kΩ...
  • Page 35 EVAL-ADAU1466Z User Guide UG-1135 1.8nF OUT2R TP38 TP36 U13-B DAC2R 768Ω 13kΩ – 49.9Ω 10µF ADA4841-2YRZ 180pF RING 100kΩ SLEEVE C100 1.8nF SJ-3523-SMT 5V00_UNREG OUT2L TP61 TP59 U13-A C101 DAC2L 13kΩ 768Ω – 49.9Ω 10µF ADA4841-2YRZ 180pF U13-C 100kΩ V–...
  • Page 36 UG-1135 EVAL-ADAU1466Z User Guide 1.8nF OUT4R U8-B DAC4R 768Ω 13kΩ – 49.9Ω 10µF ADA4841-2YRZ 180pF RING 100kΩ SLEEVE 1.8nF SJ-3523-SMT 5V00_UNREG OUT4L TP15 TP14 U8-A DAC4L 768Ω 13kΩ 49.9Ω 10µF ADA4841-2YRZ U8-C 180pF 100kΩ V– 0.10µF Figure 94. Analog Output Channel 40 and Channel 41 Schematic...
  • Page 37 EVAL-ADAU1466Z User Guide UG-1135 Figure 96. EVAL-ADAU1466Z Layout, Top Assembly Rev. 0 | Page 37 of 45...
  • Page 38 UG-1135 EVAL-ADAU1466Z User Guide Figure 97. EVAL-ADAU1466Z Layout, Top Copper Rev. 0 | Page 38 of 45...
  • Page 39 EVAL-ADAU1466Z User Guide UG-1135 Figure 98. EVAL-ADAU1466Z Layout, Ground Plane Rev. 0 | Page 39 of 45...
  • Page 40 UG-1135 EVAL-ADAU1466Z User Guide Figure 99. EVAL-ADAU1466Z Layout, Power Plane Rev. 0 | Page 40 of 45...
  • Page 41 EVAL-ADAU1466Z User Guide UG-1135 Figure 100. EVAL-ADAU1466Z Layout, Bottom Copper Rev. 0 | Page 41 of 45...
  • Page 42 UG-1135 EVAL-ADAU1466Z User Guide Figure 101. EVAL-ADAU1466Z Layout, Bottom Assembly (Viewed from Below) 4-LAYER CONSTRUCTION DETAIL SILKSCREEN SOLDERMASK LAYER 1 TOP SIDE 1.5 OZ CU FINISHED LAMINATE = 0.010 INCH THICK LAYER 2 GROUND PLANE 1.0 OZ CU. 0.05 INCHES TO 0.07 INCHES CORE PREPREG = 0.40 INCH THICK...

  • Page 43: Ordering Information

    EVAL-ADAU1466Z User Guide UG-1135 ORDERING INFORMATION BILL OF MATERIALS Table 8. Qty. Designator Description Part Number Manufacturer GRM155R71C104KA88D Murata C1, C6 to C10, C13, C14, Multilayer ceramic capacitor, 0.10 μF, 16 V, X7R, C16 to C18, C20, C22, 0402 C23, C25 to C31, C34,...
  • Page 44 UG-1135 EVAL-ADAU1466Z User Guide Qty. Designator Description Part Number Manufacturer R1, R2 Potentiometer, 10 kΩ, linear taper, 9 mm, vertical EVU-F2MFL3B14 Panasonic R13, R14, R19, R26 Chip resistor, 1 kΩ, 1%, 63 mW, thick film, 0402 RC0402FR-071KL Yageo R16, R18, R22, R30, R33, Chip resistor, 49.9 Ω, 1%, 63 mW, thick film, 0402...
  • Page 45 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.
  • Page 46 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Analog Devices Inc. EVAL-ADAU1466Z...

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