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Wolfson WM8510-EV1M User Handbook Manual

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WM8510-EV1M
Evaluation Board User Handbook
Rev 1.1

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Summary of Contents for Wolfson WM8510-EV1M

  • Page 1 WM8510-EV1M Evaluation Board User Handbook Rev 1.1...

  • Page 2: Table Of Contents

    WM8510-EV1M TABLE OF CONTENTS TABLE OF CONTENTS......................2 INTRODUCTION ........................4 GETTING STARTED........................4 ....................4 EVALUATION BOARD CHECKLIST .......................4 CUSTOMER REQUIREMENTS PCB MAIN CONNECTIONS ......................5 ........................5 POWER SUPPLIES ...........................5 DIGITAL INPUT ........................6 DIGITAL OUTPUT ........................6 ANALOGUE INPUT ........................7 ANALOGUE OUTPUT ........................7 USB CONNECTIONS INTERFACES..........................8...
  • Page 3 WM8510-EV1M EXTERNAL DSP CONNECTION TO THE WM8510-EV1B ............46 .....................46 AUDIO INTERFACE CONNECTIONS ......................48 SOFTWARE INTERFACE EVALUATION SUPPORT ......................50 IMPORTANT NOTICE......................51 :..........................51 DDRESS REVISION HISTORY .......................52 Rev 1.1 April 2006...

  • Page 4: Introduction

    This evaluation platform has been designed to allow the user ease of use and give optimum performance in device measurement. GETTING STARTED EVALUATION BOARD CHECKLIST The following items are available from Wolfson: • WM8510-EV1B Evaluation Board - 6140_SSOP28_EV1_REV1 • WM8510-EV1S Control Software (download from http://www.wolfsonmicro.com) •...

  • Page 5: Pcb Main Connections

    WM8510-EV1M PCB MAIN CONNECTIONS POWER SUPPLIES Power is supplied to the WM8510 USB interface via the USB connector. If preferred, it is also possible to supply +5V power to the audio interface level shift buffers from external supplies to 4mm connectors.

  • Page 6: Digital Output

    WM8510-EV1M Important: It must be noted that the CS8427 SPDIF decoder IC will only work at a rate of 256fs. This will limit the sample rates that may be set using the WM8510 unless an external source is used supplying signals directly to the relevant pins of header H1 or taking the signals from the relevant pins of header H5.

  • Page 7: Analogue Output

    WM8510-EV1M ANALOGUE OUTPUT The analogue outputs can be configured in one of three ways, either via two phono connectors, spring loaded speaker terminals or via a jack socket. CONNECTOR CONNECTOR TYPE SIGNAL REFERENCE REFERENCE Jack Socket Mono Headphone Out Phono Connector...

  • Page 8: Interfaces

    WM8510-EV1M INTERFACES Figure 1 Interfaces Rev 1.1 April 2006...

  • Page 9: Headers

    WM8510-EV1M HEADERS PIN NAME PIN NAME WM8510 WM8510 VMID DUT_BCLK MICN DUT_MCLK MICP DUT_CSB/GPIO MICBIAS DUT_SCLK DUT_AVDD DUT_SDIN DUT_AVDD DUT_MODE AGND MONOOUT AGND SPKOUTP DUT_DCVDD SPKGND DUT_DBVDD SPKGND DGND SPKOUTN DUT_ADCDAT SPKVDD DUT_DACDAT SPKVDD DUT_FRAME MIC2 PIN NAME PIN NAME...

  • Page 10: Switches

    WM8510-EV1M SWITCHES SWITCH SWITCH POSITION DESCRIPTION Ground selected [default setting] MICN phono input selected Mic jack input selected MICP phono selected [default setting] CS8427 Reset SPDIF PCM clocks input select [default setting] 0ption presently unavailable TAS1020B Reset External DCVDD supply selected...

  • Page 11: Software Control

    WM8510-EV1M SOFTWARE CONTROL SELECTION OF CONTROL MODE The WM8510 is controlled by writing to registers through a serial control interface. A control word consists of 16 bits. The first 7 bits (B15 to B9) are address bits that select which control register is accessed.
  • Page 12 WM8510-EV1M Once the WM8510 has acknowledged a correct address, the controller sends the first byte of control data (B15 to B8, i.e. the WM8510 register address plus the first bit of register data). The WM8510 then acknowledges the first data byte by pulling SDIN low for one clock pulse (ACK2). The controller then sends the second byte of control data (B7 to B0, i.e.

  • Page 13: Register Map

    WM8510-EV1M REGISTER MAP REGISTER DEF’T ADDR NAME B[15:9] (HEX) Software reset Software reset Power manage’t 1 BUFDCOP MIC2EN PLLEN MICBEN BIASEN BUFIOEN VMIDSEL Power manage’t 2 BOOSTEN INPPGAEN ADCEN Power manage’t 3 MONOEN SPKNEN SPKPEN MONO DACEN MIXEN MIXEN Audio Interface...

  • Page 14: Wm8510 Block Diagram

    WM8510-EV1M WM8510 BLOCK DIAGRAM Figure 4 WM8510 Block Diagram Rev 1.1 April 2006...

  • Page 15: Wm8510-Ev1S Control Software Description

    SOFTWARE DOWNLOAD The current evaluation board WM8510-EV1S control software should be downloaded from the Wolfson website [www.wolfsonmicro.com]. From the homepage it is recommended to carry out a search for ‘WM8510’ and select the evaluation board ’more’ button. Select ‘download’ from the top right hand corner under the software label.

  • Page 16: Register Write Control Panels

    WM8510-EV1M REGISTER WRITE CONTROL PANELS Figure 5 Register Write Control Panel If the WM8510_EV1S software is opened before the WM8510_EV1B board is connected to the USB cable the device will not be recognised automatically, pressing the ‘Re-detect’ button will establish a software link to the WM8510 device.
  • Page 17 WM8510-EV1M The software control interface can be selected as required. Select ‘3 Wire’ or ‘2 Wire’ from the ‘Control Mode’ menu to enable the required mode. Figure 7 Control Mode Selection The register index can be displayed on the Main Panel in either Decimal (default) or Hexadecimal format.
  • Page 18 ‘Text Box’ in the standard format. Figure 12 Input Gain Slider Panel If clicked on, the Wolfson logo in the top left of the control panel window will open the Wolfson website (www.wolfsonmicro.com) in the PCs default browser. Figure 13 Default Browser Select...

  • Page 19: Setup Text Files

    WM8510-EV1M SETUP TEXT FILES Pre-written setup files are provided to allow easy configuration of the WM8510 device for a selection of basic operational states. It is also possible to create a text files with a specific sequence of register writes by selecting ‘Save Text Box to File’ on the ‘Text Box and File Handler’ window.

  • Page 20: Default Setup - Slave Mode

    WM8510-EV1M DEFAULT SETUP - SLAVE MODE Figure 15 shows the basic ‘getting started’ WM8510 setup required to operate the DAC and ADC in Slave Mode. In this example the WM8510 MCLK and PCM clocks are generated from the S/PDIF digital input.
  • Page 21 WM8510-EV1M LINKS, JUMPERS SWITCH DESCRIPTION AND SWITCHES POSITION SW20 SPKOUTN phono selected [default setting] SW21 SPKOUTP phono selected [default setting] LNK3 SHORT Slave LRC selected [default setting] LNK4 SHORT Slave BCLK selected [default setting] LNK7 SHORT DCVDD connected [default setting]...

  • Page 22: Additional Hardware Configurations

    WM8510-EV1M ADDITIONAL HARDWARE CONFIGURATIONS Functionality of the WM8510 is achieved through 2 or 3-wire software control. The device can be configured as either master or slave (an MCLK clock must be supplied to the WM8510 in both configurations). MASTER MODE SETUP Figure 16 shows the setup required if using ADC Master Mode.
  • Page 23 WM8510-EV1M LINKS, JUMPERS SWITCH DESCRIPTION AND SWITCHES POSITION All Links OFF CS8427 clocks input [default setting] All Links OFF CS8427 clocks output [default setting] MICN phono selected [default setting] MICP phono selected [default setting] SPDIF PCM clocks input selected [default setting]...

  • Page 24: External Power Supplies Setup

    WM8510-EV1M EXTERNAL POWER SUPPLIES SETUP Figure 17 shows the setup required if using external power supplies in DAC slave mode. In this example external power supplies are connected to +5V, DCVDD, DBVDD, SPKVDD and AVDD and switches SW11-14 and SW16 are set to accept external power supplies.
  • Page 25 WM8510-EV1M LINKS, JUMPERS SWITCH DESCRIPTION AND SWITCHES POSITION LNK9 SHORT SPKVDD connected [default setting] LNK10 SHORT AVDD connected [default setting] Table 15 External Power Supplies Example Settings Rev 1.1 April 2006...

  • Page 26: Hpdetect, Headphone And Btl Speaker Setup

    WM8510-EV1M HPDETECT, HEADPHONE AND BTL SPEAKER SETUP Figure 18 shows example settings required for headphone detect, headphone output and BTL speaker output when configured for DAC output in Slave mode. Shorting LNK5 will connect a headphone detect signal to the CSB/GPIO pin.
  • Page 27 WM8510-EV1M LINKS, JUMPERS SWITCH DESCRIPTION AND SWITCHES POSITION SW14 USB AVDD supply selected [default setting] SW16 USB +5V supply selected [default setting] SW20 Left BTL speaker output selected SW21 Right BTL speaker output selected LNK3 SHORT Slave BCLK selected [default setting]...

  • Page 28: Schematic Layout

    WM8510-EV1M SCHEMATIC LAYOUT Figure 19 Functional Block Diagram Figure 20 S/PDIF Interface Rev 1.1 April 2006...
  • Page 29 WM8510-EV1M Figure 21 USB Controller Figure 22 Control Interface Level Shift Rev 1.1 April 2006...
  • Page 30 WM8510-EV1M Figure 23 Audio Interface Level Shift Figure 24 Analogue Input Rev 1.1 April 2006...
  • Page 31 WM8510-EV1M Figure 25 Analogue Output Rev 1.1 April 2006...
  • Page 32 WM8510-EV1M Figure 26 - WM8510 Rev 1.1 April 2006...
  • Page 33 WM8510-EV1M Figure 27 USB Power Supply Figure 28 External Power Supplies Rev 1.1 April 2006...

  • Page 34: Pcb Layout

    WM8510-EV1M PCB LAYOUT Figure 29 Silkscreen Top Rev 1.1 April 2006...
  • Page 35 WM8510-EV1M Figure 30 Top Layer Rev 1.1 April 2006...
  • Page 36 WM8510-EV1M Figure 31 Bottom Layer Rev 1.1 April 2006...

  • Page 37: Wm8510-Ev1B Bill Of Material

    WM8510-EV1M WM8510-EV1B BILL OF MATERIAL Description Reference 74ALVC164245 16 Bit Dual Supply Bus Transceiver SSO U3 U6 Tantalum Capacitor SMD-B 10uF - 16V - AVX C77 C80 C82 C94-95 10uF 12.5V SMD Poly Aluminium Low ESR CD Series C26 C30 Unpop CASE T Surface Mount 6.3V...
  • Page 38 WM8510-EV1M KP-2012MBC 0805 SMD Chip LED BLUE LED8 KP-2012MGC 0805 SMD Chip LED GREEN LED1 KP-2012SRC-PRV 0805 SMD Chip LED RED LED4-5 LED7 KP-2012SYC 0805 SMD Chip LED YELLOW LED2-3 1x2 PCB Pin Header 0.1" VERTICAL H2 J1 LNK3-4 LNK7-10 1x3 PCB Pin Header 0.1"...
  • Page 39 WM8510-EV1M Crystal, 6.000MHz, HC49US Table 17 WM8510-EV1M Bill of Materials Note: The audio transformer used on this board is manufactured by Scientific Conversion Inc. http://www.scientificonversion.com Rev 1.1 April 2006...

  • Page 40: Appendices

    – a WM8510 device which is powered off may not acknowledge 2 wire communications. “MORE THAN 1 WOLFSON USB BOARD DETECTED…” It is only possible to access a maximum of 1 Wolfson evaluation board (of any device type) with a USB interface from any PC.

  • Page 41: Usb Communications Issues

    If the WM8510 Control Software displays a message relating to the USB connection, it is possible that the Wolfson USB Interface (a generic term referring to any the Wolfson Evaluation board with a USB interface) is not connected or enumerated to the PC. There are several possible reasons for this.
  • Page 42 WM8510-EV1M Expand the tree beside “Human Interface Devices”. Expect to observe the following devices: • HID-compliant consumer control device • USB Human interface device Expand the tree beside “Sound, Video and Game Controllers” Expect to observe the following devices: •...
  • Page 43 • USB Composite Device If all three of the above devices are visible, the PC USB drivers are functional and the Wolfson USB Interface is functional. At this stage, if the WM8510 Control Software does not detect the Wolfson USB Interface, please refer to the section titled “Re-start PC”.

  • Page 44: Message Box Explanations - File Load/Save Functions

    USB devices have ever been connected to the PC, and successfully used: • If other USB devices have been connected to the PC, and successfully used, please contact Wolfson for support. • If no other USB devices have been connected to the PC or successfully used, please contact your local support specialist to have the USB system checked with a known good USB device.
  • Page 45 WM8510-EV1M “… “READ-ONLY” ATTRIBUTES…” Check that the file you are trying to save to is not set as “read-only”. Rev 1.1 April 2006...

  • Page 46: External Dsp Connection To The Wm8510-Ev1B

    WM8510-EV1M EXTERNAL DSP CONNECTION TO THE WM8510-EV1B The WM8510-EV1B evaluation board has been designed to allow it to be easily connected to an external DSP platform with error free operation. The following information is provided to ease the connection process and ensure that all signals sent and received by the WM8510-EV1B are reliable and at the correct voltage levels.
  • Page 47 WM8510-EV1M MCLK Figure 34 Timing Connections From DSP Platform The digital inputs to the WM8510 have a CMOS threshold (i.e. Logic High (min) = DBVDD * 0.7; Logic Low (max) = DBVDD * 0.3). These are met directly by the level shift IC outputs.

  • Page 48: Software Interface

    Similar connections apply for controlling the WM8510 via 2-wire software mode (i.e. only pins 4 (DUT_SCLK), pin 5 (DUT_SDIN) and pin 7 (DUT_MODE) of header H6 are used). CONNECTION DIAGRAMS Figure 36 DSP Connection with PC Control Using Wolfson Software Rev 1.1 April 2006...
  • Page 49 WM8510-EV1M Software Control WM8510-EV1B Audio Interface Platform Figure 37 Full DSP Control with Equal Supplies for DSP and WM8510 Figure 38 Full DSP Control with Higher DSP Supply than WM8510 Rev 1.1 April 2006...

  • Page 50: Evaluation Support

    The aim of this evaluation kit is to help you to become familiar with the functionality and performance of the WM8510 mono codec. If you require more information or require technical support please contact Wolfson Microelectronics Applications group through the following channels: Email: apps@wolfsonmicro.com...

  • Page 51: Important Notice

    IMPORTANT NOTICE Wolfson Microelectronics plc (WM) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current.

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