WM8731L-6061-FL28-M-Rev1

Transcription

1 WM8731L-6061-FL28-M Example Configurations DOC TYPE: EXAMPLE CONFIGURATIONS BOARD REFERENCE: WM8731L-6061-FL28-M-Rev1 BOARD TYPE: Customer Mini Board WOLFSON DEVICE(S): WM8731L DATE: November 2007 DOC REVISION: 1.0 INTRODUCTION The WM8731L-6061-FL28-M mini-board is compatible ith the 6061-EV1 customer evaluation board and together provide a complete hardare platform for evaluation of the WM8731L. The WM8731L mini-board can also be used independently and connected directly to a processor board using flying ires or appropriate headers. This document ill cover both, but performance data ill be based on the Wolfson system ith 6061-EV1 main board. Configurations covered are listed belo: DAC Playback to 32Ω Headphone on L/RHPOUT ADC Record from L/RINPUT Analogue bypass (LINE-in-LINE-out) This document should be used as a starting point for evaluation of WM8731. It ill not cover every possible usage mode. Assumptions: 1. The user is familiar ith the 6061-EV1 main board and that the board is configured correctly for the path of interest (see related documents belo) 2. The user has setup WISCE as per instruction and has control of the DUT (register settings provided in this document) Related documents: 1. WM8731L-6061-FL28-M_Schematic_Layout.pdf EV1_Schematic_Layout.pdf 3. WISCE Quick Start Guide.pdf WOLFSON MICROELECTRONICS plc To receive regular updates, sign up at Copyright 2007 Wolfson Microelectronics plc

2 WM8731L-6061-CO28-M Evaluation Board Customer Information TABLE OF CONTENTS INTRODUCTION...1 CONTENTS...2 BOARD CONFIGURATION STAND-ALONE...3 BOARD CONFIGURATION WITH 6061-EV1 MAIN BOARD...5 DAC PLAYBACK TO 32Ω HEADPHONE ON L/RHPOUT...5 ADC RECORD FROM L/RINPUT...7 ANALOGUE BYPASS (LINE-IN-LINE-OUT)...9 APPLICATION SUPPORT...11 IMPORTANT NOTICE...12 ADDRESS:

3 Customer Information WM8731L-6061-CO28-M Evaluation Board BOARD CONFIGURATION STAND-ALONE The WM8731L mini board can be used a stand-alone module for direct connection to a processor board via flying leads or dedicated headers. This section ill detail important considerations and provide all information required to do this ithout risking damage to the CODEC. CONNECTION DIAGRAM Figure 1 shos the connections required to poer-up and control the WM8731L mini board. Connections can be made through flying leads or ith 2.54mm pitch headers compatible ith those on the mini board. Additionally, MICIN can be configured to use the onboard silicon microphone, and the headphone Jack socket provides an AC-coupled headphone output. Please refer to Table 1 for further details on external I/O connections. Figure 1 WM8731L Mini Board Connection Diagram 3

4 WM8731L-6061-CO28-M Evaluation Board Customer Information I/O TABLE SIGNAL BOARD REFERENCE IMPORTANT NOTES Voltage Supplies AVDD 18 (H3) AVDD=1.8V to 3.6V HPVDD 12 (H2) HPVDD=1.8V to 3.6V DCVDD 3 (H1) DCVDD=1.42V to 3.6V DBVDD 5 (H1) DBVDD=1.8V to 3.6V AGND / HPGND / DGND Control Interface MODE CSB Common GND: 4 (H1), 15 (H3), 19 (H3) 25 (H4) Controlled via SP3 26 (H4) Controlled via SP2 Analogue and digital grounds must alays be ithin 0.3V of each other 2-ire (default): MODE to GND via R9 3-ire: MODE to DBVDD via SP3 2-ire address 0x34h (default): CSB to GND via R8 2-ire address 0x36h: CSB to DBVDD via SP3 SDIN SCLK 27 (H4) 28 (H4) All control interface signals should sing beteen DGND and DBVDD Crystal / Master Clock XTI/MCLK 1 (H1) Signal should sing beteen DGND and DBVDD XTO 2 (H1) Crystal Output CLKOUT 6 (H1) Buffered Core CLK or Core CLK/2 Audio Interface BCLK DACDAT DACLRC ADCDAT 7 (H1) 8 (H2) 9 (H2) 10 (H2) All audio interface signals should sing beteen DGND and DBVDD ADCLRC 11 (H2) Analogue Inputs LLINEIN 24 (H4) Full scale sing should not exceed AVDD/3.3 Vrms RLINEIN 23 (H4) Full scale sing should not exceed AVDD/3.3 Vrms MICIN 22 (H4) Full scale sing should not exceed AVDD/3.3 Vrms. Can also be connected to onboard MIC via shorting point SP1 (MICBIAS must be enabled for correct operation) Analogue Outputs LOUT 16 (H3) Line output (left channel) ROUT 17 (H3) Line output (right channel) LHPOUT RHPOUT 13 (H2) 14 (H2) HP output (left channel) or left channel of AC coupled HP output (J2) HP output (right channel) or right channel of AC coupled HP output (J2) MICBIAS 21 (H3) Microphone Bias Table 1 I/O Configuration 4

5 Customer Information BOARD CONFIGURATION WITH 6061-EV1 MAIN BOARD WM8731L-6061-CO28-M Evaluation Board This section focuses on evaluation of the WM8731L mini board in combination ith the 6061-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 ill be covered. DAC PLAYBACK TO 32Ω HEADPHONE ON L/RHPOUT The folloing section details board configuration for stereo DAC playback to 32ohm headphone on R/LHPOUT. It should be noted that R/LHPOUT outputs are routed to headphone jack sockets on the WM8731L mini-board and 6061-EV1 main-board, and also to phono connectors on the main-board. For the purpose of this test the main-board phono connectors ere used ith 32ohm loads applied. EVALUATION BOARD SETUP BOARD CONFIGURATION 5

6 WM8731L-6061-CO28-M Evaluation Board REGISTER SETTINGS Customer Information Register settings provided belo are simply the minimum requirement to configure the desired path and have not in any ay been optimised for pops and clicks. REG INDEX DATA VALUE 0x0F 0x0E00 Reset COMMENT 0x04 0x0012 Analogue Audio Path Control: SIDEATT=00, SIDETONE=0, DACSEL=1, BYPASS=0, INSEL=0, MIC=1, MICBOOST=0 0x05 0x0000 Digital Audio Path Control: HPOR=0, DACMU=0, DEEMPH=00, ADCHPD=0 0x06 0x0007 Poer Don Control: POWEROFF=0, CLKOUTPD=0, OSCPD=0, OUTPD=0, DACPD=0, ADCPD=1, MICPD=1, LINEINPD=1 0x09 0x0001 Active Control: Active=1 THD+N V AMPLITUDE PERFORMANCE CURVE Audio Precision WM8731-EV1 DAC Signal Path (to HP_Out) THD+N v Amplitude Signal = 1.013kHz; 24-bit I2S; 256fs (fs=48khz); Slave Mode d B r A dbfs Color Seep Trace Line Style Thick Data Axis Comment 1 1 Solid 2 Anlr.THD+N Left HP Left Red Ampl 1 2 Blue Solid 2 Anlr.THD+N Ampl Left HP Right System AP2 Board Revision: 1.0 Device Date Code: WM8731S 79AAEJM Input Path: SPDIF_IN Input Signal: 997Hz; 0dBFS; 24-bit; 256fs (fs=48khz) Output Path: HPL/R (32R Load) Output Reference: 0dBrA = dbv Supplies: AVDD=DBVDD=+3.3V, SPKVDD=+3.3V, DCVDD=+3.3V BW filter : As stated Additional Filtering: A-eight Dither: None RMS or Averaging: Averaging DAC_THD+NvAmp_HPOUT_32ohm.at27 6

7 Customer Information WM8731L-6061-CO28-M Evaluation Board ADC RECORD FROM L/RINPUT The folloing section details board configuration for ADC record from LINPUT / RINPUT line inputs. EVALUATION BOARD SETUP XTO XTI/MCLK CLKOUT DACDAT DACLRC BCLK ADCLRC ADCDAT DCVDD DBVDD DGND CSB SDIN SCLK MODE BOARD CONFIGURATION USB S/PDIF out (optical) 7

8 WM8731L-6061-CO28-M Evaluation Board REGISTER SETTINGS Customer Information Register settings provided belo are simply the minimum requirement to configure the desired path and have not in any ay been optimised for pops and clicks. REG INDEX DATA VALUE R15 0x0001 RESET (to default settings) COMMENT R0 0x0017 Left Line In: LRINBOTH=0, LIN=0, LINVOL=1_0111 R1 0x0017 Right Line In: RLINBOTH=0, RIN=0, RINVOL=1_0111 R4 0x0002 Analogue Audio Path Control: SIDEATT=00, SIDETONE=0, DACSEL=0, BYPASS=0, INSEL=0, MIC=1, MICBOOST=0 R5 0x0009 Digital Audio Path Control: HPOR=0, DACMU=1, DEEMPH=00, ADCHPD=1 R6 0x000A Poer Don Control: POWEROFF=0, CLKOUTPD=0, OSCPD=0, OUTPD=0, DACPD=1, ADCPD=0, MICPD=1, LINEINPD=0 R9 0x0001 Active Control: Active=1 THD+N V AMPLITUDE PERFORMANCE CURVE Audio Precision WM8960-EV1 -- ADC THD+N v Amplitude -- L/RINPUT1 11/08/07 17:14: d B F S dbv Color Seep Trace Line Style Thick Data Axis Comment 1 1 Solid 2 DSP Left Left Red Anlr.THD+N Ampl A 1 2 Blue Solid 2 DSP Anlr.THD+N Ampl B Left System AP2 Board Revision: 1.0 Device Date Code: WM8731S 79AAEJM Input Path: L/RINPUT Input Signal: 997Hz; 0dBFS; 24-bit; 256fs (fs=48khz) Output Path: S/PDIF out (optical) Output Reference: 0dBrA = 0 dbfs Supplies: AVDD=DBVDD=+3.3V, SPKVDD=+3.3V, DCVDD=+3.3V BW filter : As stated Additional Filtering: A-eight Dither: None RMS or Averaging: Averaging ADC_THD+NvAmp_LRIN1.at27 8

9 Customer Information WM8731L-6061-CO28-M Evaluation Board ANALOGUE BYPASS (LINE-IN-LINE-OUT) The folloing section details board configuration for analogue bypass (line-in-to-line-out) from L/RLINEIN1 to L/ROUT via the output mixers. Note: In this case both L/RLINEIN1 inputs and L/ROUT outputs located on the 6061-EV1 main board ere used. EVALUATION BOARD SETUP CSB SDIN SCLK AVDD VMID CONTROL INTERFACE HPVDD AGND MICBIAS RLINEIN MICIN VOL +12 to -34.5dB, 1.5dB Steps 0dB/ 20 db MUX ADC DIGITAL FILTERS DAC +6 to -73dB 1 db Steps VOL / H/P DRIVER HPGND RHPOUT ROUT LOUT LLINEIN VOL MUX ADC DAC VOL / +6 to -73dB 1 db Steps H/P DRIVER LHPOUT OSC DIGTAL AUDIO INTERFACE XTO XTI/MCLK CLKOUT DACDAT DACLRC BCLK ADCLRC ADCDAT DCVDD DBVDD DGND MODE Bypass W WM 8731 ATTEN / Side Tone + 12 to -34.5dB, 1.5dB Steps Side Tone ATTEN / CLKIN DIVIDER ( Div x 1, x 2) CLKOUT DIVIDER ( Div x 1, x2) Bypass BOARD CONFIGURATION USB L/R LINE OUT 9

10 WM8731L-6061-CO28-M Evaluation Board Customer Information REGISTER SETTINGS Register settings provided belo are simply the minimum requirement to configure the desired path and have not in any ay been optimised for pops and clicks. REG INDEX DATA VALUE COMMENT R15 0x0001 RESET (to default settings) R4 0x000A Analogue Audio Path Control: SIDEATT=00, SIDETONE=0, DACSEL=0, BYPASS=1, INSEL=0, MIC=1, MICBOOST=0 R6 0x000E Poer Don Control: POWEROFF=0, CLKOUTPD=0, OSCPD=0, OUTPD=0, DACPD=1, ADCPD=1, MICPD=1, LINEINPD=0 R9 0x0001 Active Control: Active=1 THD+N V AMPLITUDE PERFORMANCE CURVE WM8960-EV1 -- Analogue BypassTHD+N v Amplitude (L/RINPUT1, L/ROUT1) 11/08/07 17:28: d B r A dbv Color Seep Trace Line Style Thick Data Axis Comment 1 1 Solid 2 Anlr.THD+N Left LOUT Red Ampl 1 2 Blue Solid 2 Anlr.THD+N Ampl Left ROUT System = AP2 Board Revision: 2.0 Device Datecode: 5CAAFV4 Input Signal: 977Hz; 0dBV Reference Levels: 0dBrA = dBV Supplies: AVDD=SPKVDD=DCVDD=DBVDD = +3.3V Input Signal Path: L/R INPUT Output Signal Path: L/R OUT BW Filtering: As stated Additional Filtering Type: A-eight Dither = Off RMS or Averaging = Average THD+N_vs_Amplitude_LRINPUT1_to_LROUT1_Bypass.at27 10

11 Customer Information WM8731L-6061-CO28-M Evaluation Board APPLICATION SUPPORT If you require more information or require technical support, please contact the Wolfson Microelectronics Applications group through the folloing channels: Telephone Apps: +44 (0) Fax: +44 (0) Mail: Applications Engineering at the address on the last page or contact your local Wolfson representative. Additional information may be made available on our eb site at: 11

12 WM8731L-6061-CO28-M Evaluation Board Customer Information 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 acknoledgement. Wolfson arrants 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 ithout 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 arranty. Specific testing of all parameters of each device is not necessarily performed unless required by la or regulation. In order to minimise risks associated ith 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 here 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 on risk. Wolfson does not grant any licence (express or implied) under any patent right, copyright, mask ork right or other intellectual property right of Wolfson covering or relating to any combination, machine, or process in hich 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, arranty or endorsement thereof. Any third party trade marks contained in this document belong to the respective third party oner. Reproduction of information from Wolfson datasheets is permissible only if reproduction is ithout 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, arranties given, and/or liabilities accepted by any person hich 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 on risk. Wolfson is not liable for any such representations, arranties 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) Fax :: +44 (0) : apps@olfsonmicro.com 12