w WM8983-6160-FL32-M-REV1 Example Configurations DOC TYPE: EXAMPLE CONFIGURATIONS BOARD REFERENCE: WM8983-6160-FL32-M-REV1 BOARD TYPE: Customer Mini Board WOLFSON DEVICE(S): WM8983 DATE: September 2008 DOC REVISION: Rev 1.1 INTRODUCTION The WM8983-6160-FL32-M-REV1 Customer Mini Board is compatible with the 6160-EV1 customer evaluation board and together provide a complete hardware platform for evaluation of the WM8983. The WM8983 Customer Mini Board can also be used independently and connected directly to a processor board using flying wires or appropriate headers. This document will cover both, but performance data will be based on the Wolfson “system” with 6160-EV1 motherboard. Configurations covered are listed below: • DAC Playback to 32R Stereo Headphone (LOUT1/ROUT1) • DAC Playback to 8R Stereo Speaker (LOUT2/ROUT2) • MIC LIN-RIN to ADC This document should be used as a starting point for evaluation of WM8983 but it will not cover every possible configuration. Assumptions: 1. The user is familiar with the 6160-EV1 motherboard and that the board is configured correctly for the path of interest (see related documents below) 2. The user has setup RegWrite or WISCE as per instruction and has control of the DUT (register settings provided in this document) Related documents: 1. WM8983-6160-FL32-M-REV1 Schematic and Layout.pdf 2. 6160-EV1 Schematic and Layout.pdf 3. WISCE Quick Start Guide.pdf The audio interface is connected to the main board through the S/PDIF ELECTRICAL IN and S/PDIF OPTICAL OUT connectors. All control signals for the 3-wire interface to the device are through the USB interface. WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/ September 2008, Rev 1.1 Copyright 2008 Wolfson Microelectronics plc WM8983-6160-FL32-M-REV1 Customer Information TABLE OF CONTENTS INTRODUCTION .............................................................................................................1 TABLE OF CONTENTS ..................................................................................................2 BOARD CONFIGURATION STAND-ALONE ..................................................................3 CONNECTION DIAGRAM.......................................................................................................3 I/O TABLE ...............................................................................................................................4 BOARD CONFIGURATION WITH 6160-EV1 MAIN BOARD..........................................6 DAC PLAYBACK TO 32R STEREO HEADPHONE (LOUT1/ROUT1) .....................................6 DAC PLAYBACK TO 8R STEREO SPEAKER (LOUT2/ROUT2).............................................8 MIC LIN – RIN TO ADC.........................................................................................................10 APPLICATION SUPPORT ............................................................................................12 IMPORTANT NOTICE ...................................................................................................13 ADDRESS: ............................................................................................................................13 w Customer Information September 2008, Rev 1.1 2 WM8983-6160-FL32-M-REV1 Customer Information BOARD CONFIGURATION STAND-ALONE The WM8983 Customer Mini Board can be used a stand-alone module for direct connection to a processor board via flying leads or dedicated headers. This section will detail important considerations and provide all information required to do this without risking damage to the device. CONNECTION DIAGRAM Figure 1 below shows the connections required to power-up and control the WM8983 Customer Mini Board. Please refer to Table 1 for further detail on external I/O connections. DBVDD + - DCVDD + - AVDD1 + - LRC BCLK AVDD2 + - R2/GPIO3 RIN RIP LIP LIN L2/GPIO2 ADCDAT DACDAT MCLK LOUT1 ROUT1 CSB/GPIO1 SCLK SDIN ROUT2 LOUT2 (HP 3.5mm stereo jack) MODE OUT3 OUT4 AUXR AUXL Figure 1 Stand-Alone Board Configuration w Customer Information September 2008, Rev 1.1 3 WM8983-6160-FL32-M-REV1 Customer Information I/O TABLE SIGNAL BOARD REFERENCE HEADER IMPORTANT NOTES Voltage Supplies AVDD1 TP31 H4 pin 14 AVDD1 = 2.5V to 3.6V AVDD2 TP26 H4 pin 4 AVDD2 = 2.5V to 3.6V DCVDD TP13 H2 pin 10 DCVDD = 1.71V to 3.6V but must be less than or equal to AVDD, SPKVDD, VBVDD & DBVDD DBVDD TP14 H2 pin 12 DBVDD = 1.71V to 3.6V Common GND on any of TP12, TP24, TP28, TP34, TP35 H1, H2, H4 odd Analogue and digital grounds must be within 0.3V numbered of each other pins Ground AGND1 AGND2 DGND Control Interface MODE TP18 (Controlled using SP7 on board) H3 pin 4 TP15 H2 pin 14 2-wire (default): MODE to GND via R18 3-wire: MODE to DBVDD via SP7 Low: 2-wire control interface (fixed address 0x34) CSB/GPIO High: 3-wire control interface SDIN TP17 H3 pin 2 SCLK TP16 H2 pin 16 All control interface signals should swing between DGND and DBVDD TP11 H2 pin 6 Signal should swing between DGND and DBVDD BCLK TP8 H1 pin 16 LRC TP7 H1 pin 14 DACDAT TP10 H2 pin 4 ADCDAT TP9 H2 pin 2 Master Clock MCLK Audio Interface All audio interface signals should swing between DGND and DBVDD Analogue Inputs LIN TP2 H1 pin 4 LIP TP1 H1 pin 2 RIN TP5 H1 pin 10 RIP TP4 H1 pin 8 L2/GPIO2 TP3 H1 pin 6 R2/GPIO3 TP6 H1 pin 12 AUXL TP19 H3 pin 6 AUXR TP20 H3 pin 8 Full scale swing should not exceed AVDD/3.3 Vrms single-ended. Pseudo-differential full scale swing should not exceed AVDD*0.7/3.3 Vrms Full scale swing should not exceed AVDD/3.3 Vrms w Customer Information September 2008, Rev 1.1 4 WM8983-6160-FL32-M-REV1 Customer Information SIGNAL BOARD REFERENCE HEADER IMPORTANT NOTES Analogue Outputs MBVSEL=0 sets bias voltage to 0.9*AVDD, MICBIAS TP32 H4 pin 16 MBVSEL=1 sets bias voltage to 0.65*AVDD. Max current 3mA. LOUT1 TP30 H4 pin 12 Headphone or line output left ROUT1 TP29 H4 pin 10 Headphone or line output right LOUT2 TP25 H4 pin 2 Headphone output left ROUT2 TP23 H3 pin 14 Headphone output right OUT3 TP22 H3 pin 12 Left line output OUT4 TP21 H3 pin 10 Right line or mono mix output Table 1 I/O Configuration w Customer Information September 2008, Rev 1.1 5 WM8983-6160-FL32-M-REV1 Customer Information BOARD CONFIGURATION WITH 6160-EV1 MAIN BOARD This section focuses on evaluation of the WM8983-6160-FL32-M-REV1 Customer Mini Board in combination with the 6160-EV1 main board. This “system” is the reference platform for measurement data contained in this document. Please note that only a limited number of usage modes will be covered. DAC PLAYBACK TO 32R STEREO HEADPHONE (LOUT1/ROUT1) The following section details board configuration for stereo DAC playback to headphone outputs LOUT1 and ROUT1. EVALUATION BOARD SETUP BOARD CONFIGURATION S/PDIF ELECT IN USB w Customer Information LOUT1 ROUT1 HP Jack Output September 2008, Rev 1.1 6 WM8983-6160-FL32-M-REV1 Customer Information REGISTER SETTINGS Register settings provided below are simply the minimum requirement to configure the desired path and have not in any way been optimised for pops and clicks. REG INDEX DATA VALUE COMMENT R0 0x000 Reset (all registers to default setting) R61 0x100 Set BIASCUT R49 0x002 Enable thermal shutdown R52 0x140 LOUT1 muted, LOUT1VOL=0dB R53 0x140 ROUT1 muted, ROUT1VOL=0dB R2 0x180 Enable LOUT1 & ROUT1 outputs R42 0x004 Enable POBCTRL R3 0x1EF Enable DACs and output mixers R1 VMIDSEL=75kΩ,enable BIASEN & BUFIOEN R6 0x0CD 0x040 R11 0x1FF Set DACVU, DACLVOL=0dB R12 0x1FF Set DACVU, DACRVOL=0dB R42 Disable POBCTRL R52 0x000 0x139 R53 0x139 ROUT1 un-muted, ROUTVOL=0dB MCLK selected, MCLKDIV=n/2, BCLK=MCLK LOUT1 un-muted, LOUTVOL=0dB THD+N V AMPLITUDE PERFORMANCE CURVE w Customer Information September 2008, Rev 1.1 7 WM8983-6160-FL32-M-REV1 Customer Information DAC PLAYBACK TO 8R STEREO SPEAKER (LOUT2/ROUT2) The following section details board configuration for stereo DAC playback to 8R stereo speaker on LOUT2 and ROUT2. EVALUATION BOARD SETUP BOARD CONFIGURATION S/PDIF ELECT IN LOUT2 ROUT2 Phono Outputs USB Attach SPEAKERS w Customer Information September 2008, Rev 1.1 8 WM8983-6160-FL32-M-REV1 Customer Information REGISTER SETTINGS REG INDEX DATA VALUE COMMENT R0 0x000 Reset (all registers to default setting) R61 0x100 Set BIASCUT R49 0x002 Enable thermal shutdown R1 0x0CD VMIDSEL=75kΩ,enable BIASEN & BUFIOEN R42 0x004 0x140 Enable POBCTRL R54 R55 0x140 ROUT2 muted, ROUT2VOL=0dB R6 0x1EF 0x040 Enable LOUT2 & ROUT2 outputs, DACs and output mixers R11 0x1FF Set DACVU, DACLVOL=0dB R12 0x1FF Set DACVU, DACRVOL=0dB R54 0x000 0x139 Disable POBCTRL R55 0x139 ROUT2 un-muted, ROUT2VOL=0dB R3 R42 LOUT2muted, LOUT2VOL=0dB MCLK selected, MCLKDIV=n/2, BCLK=MCLK LOUT2 un-muted, LOUT2VOL=0dB THD+N V AMPLITUDE PERFORMANCE CURVE w Customer Information September 2008, Rev 1.1 9 WM8983-6160-FL32-M-REV1 Customer Information MIC LIN – RIN TO ADC The following section details board configuration for connecting a differential Microphone to LIN/LIP and RIN/RIP to the stereo ADC. EVALUATION BOARD SETUP BOARD CONFIGURATION RIN (White) Phono Inputs LIN (White) Phono Inputs S/PDIF OPTICAL OUT S/PDIF ELECT IN USB w Customer Information September 2008, Rev 1.1 10 WM8983-6160-FL32-M-REV1 Customer Information REGISTER SETTINGS REG INDEX DATA VALUE COMMENT Reset (all registers to default setting) R0 0x000 R49 0x002 Enable thermal shutdown R2 0x03F Enable BOOSTENL BOOSTENR, INPPGAENL, INPPGAENR; ADECENL, ADECENR R1 0x009 VMIDSEL=75kΩ,enable BIASEN R6 0x040 MCLK selected, MCLKDIV=n/2, BCLK=MCLK R15 0x1FF Set ADCVU, ADCLVOL-0dB R16 Set ADCVU, ADCRVOL-0dB R44 0x1FF 0x033 R45 0x110 Set INPPGAVU, INPPGAVOLL=0dB R46 0x110 Set INPPGAVU, INPPGAVOLR=0dB R47 0x000 PGABOOSTL disabled R48 0x000 PGABOOSTR disabled LIN2INPGA, LIP2PGA, RIN2INPGA, RIP2PGA, THD+N V AMPLITUDE PERFORMANCE CURVE Rload = 10kΩ w Customer Information September 2008, Rev 1.1 11 WM8983-6160-FL32-M-REV1 Customer Information APPLICATION SUPPORT If you require more information or require technical support, please contact the Wolfson Microelectronics Applications group through the following channels: Email: Telephone Apps: Fax: Mail: [email protected] +44 (0) 131 272 7070 +44 (0) 131 272 7001 Applications Engineering at the address on the last page or contact your local Wolfson representative. Additional information may be made available on our web site at: http://www.wolfsonmicro.com w Customer Information September 2008, Rev 1.1 12 Customer Information WM8983-6160-FL32-M-REV1 IMPORTANT NOTICE Wolfson Microelectronics plc (“Wolfson”) products and services are sold subject to Wolfson’s terms and conditions of sale, delivery and payment supplied at the time of order acknowledgement. Wolfson warrants performance of its products to the specifications in effect at the date of shipment. Wolfson reserves the right to make changes to its products and specifications or to discontinue any product or service without notice. Customers should therefore obtain the latest version of relevant information from Wolfson to verify that the information is current. Testing and other quality control techniques are utilised to the extent Wolfson deems necessary to support its warranty. Specific testing of all parameters of each device is not necessarily performed unless required by law or regulation. In order to minimise risks associated with customer applications, the customer must use adequate design and operating safeguards to minimise inherent or procedural hazards. Wolfson is not liable for applications assistance or customer product design. The customer is solely responsible for its selection and use of Wolfson products. Wolfson is not liable for such selection or use nor for use of any circuitry other than circuitry entirely embodied in a Wolfson product. Wolfson’s products are not intended for use in life support systems, appliances, nuclear systems or systems where malfunction can reasonably be expected to result in personal injury, death or severe property or environmental damage. Any use of products by the customer for such purposes is at the customer’s own risk. Wolfson does not grant any licence (express or implied) under any patent right, copyright, mask work right or other intellectual property right of Wolfson covering or relating to any combination, machine, or process in which its products or services might be or are used. Any provision or publication of any third party’s products or services does not constitute Wolfson’s approval, licence, warranty or endorsement thereof. Any third party trade marks contained in this document belong to the respective third party owner. Reproduction of information from Wolfson datasheets is permissible only if reproduction is without alteration and is accompanied by all associated copyright, proprietary and other notices (including this notice) and conditions. Wolfson is not liable for any unauthorised alteration of such information or for any reliance placed thereon. Any representations made, warranties given, and/or liabilities accepted by any person which differ from those contained in this datasheet or in Wolfson’s standard terms and conditions of sale, delivery and payment are made, given and/or accepted at that person’s own risk. Wolfson is not liable for any such representations, warranties or liabilities or for any reliance placed thereon by any person. ADDRESS: Wolfson Microelectronics plc Westfield House 26 Westfield Road Edinburgh EH11 2QB United Kingdom Tel :: +44 (0)131 272 7000 Fax :: +44 (0)131 272 7001 E-mail :: [email protected] w Customer Information September 2008, Rev 1.1 13