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Nuvoton CODEC 8401 series, User Manual

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Nuvoton CODEC 8401 series User Manual Download Page 48

 

CODEC Motherboard Manual Version 1.3 

 Page 48 of 66  

April 12, 2016

 

CODEC Motherboard 

24  Digital Audio Input 

There are three methods to stream digital audio from the motherboard or external devices into the 
NAU8822 audio data interface.  These paths are set up using the appropriate connectors, and 
also, using the W681308 microcontroller managed by the GUI Application software to set up the 
paths accordingly. 
 

Summary of Contents for CODEC 8401 series

Page 1: ...nual Version 1 3 Page 1 of 66 April 12 2016 CODEC Motherboard Nuvoton Audio Codec Motherboard Evaluation Board User s Guide For Nuvoton CODEC series 8812 8814 8810 88C10 8811 8820 8822 8822L 88C22 840...

Page 2: ...B power and should NOT be used with longer or unknown quality USB cables These can cause unreliable operation If additional daughter cards have been ordered with this system it is strongly recommended...

Page 3: ...iption of Special Icons in Path View 15 6 2 2 Path View Navigation Shortcuts 15 6 3 Device Control Panel 16 6 3 1 Device Settings 17 6 3 2 Board Settings 18 6 3 2 1 Command Interface 18 6 3 2 1 1 Exte...

Page 4: ...Control Panel 34 6 10 1 Register Map Bit Control 35 6 10 1 1 Register Map Update Bits write only bits 35 6 10 2 Audio Codec Register Control 35 6 11 Script Control Panel 36 6 11 1 Script Panel Structu...

Page 5: ...Digital Audio 49 8 5 2 USB Audio 49 8 5 3 Unformatted Audio 49 8 6 Digital Audio Output 50 8 6 1 Formatted Digital Audio 50 8 6 2 USB Audio 50 8 6 3 Unformatted Audio 50 8 7 Digital Audio Related Conn...

Page 6: ...d They are NAU8812 NAU8814 NAU8810 NAU88C10 NAU8811 NAU8820 WAU8822 NAU8822L NAU88C22 NAU8401 NAU8402 NAU8501 and NAU8502 However to get started a few basic inputs and outputs must be noted The USB co...

Page 7: ...d that enable the PC to recognize the Nuvoton USB audio hardware Depending on the operating system and configuration it may be necessary to reboot the PC after the first time installation If the insta...

Page 8: ...d or software has been installed on the PC In all Windows systems the management of audio is similar This is typically done using the Control Panel option in the Start Menu and then selecting the appr...

Page 9: ...y be started with or without the motherboard USB hardware attached If the motherboard is not attached the application will run in a software demo mode that enables becoming more familiar with the soft...

Page 10: ...dicators The Status Indicators are located in the lower left hand corner of every Control Tab screen These indicators are especially important as they provide the highest level of system status Figure...

Page 11: ...selected or it can be used to switch daughter cards without restarting or powering down the hardware However it is preferred to power down the hardware and restart the application to change daughter c...

Page 12: ...tions describe the functions of each Control Tab in more detail 6 1 Demo Panel The Demo Panel is important because it enables complete proven and working examples of how to configure the device on the...

Page 13: ...l cause all of the desired settings to be loaded into the audio device being tested Additionally any necessary changes to the EVB initialization or configuration will be performed automatically at thi...

Page 14: ...ine level audio input attached to the Aux inputs should be audible in a headphone attached to the headphone jack A suitable line level audio source would be the output from a CD audio player or other...

Page 15: ...p up menu will appear are marked with a small down arrow icon This can be used to either view the current setting or to change a setting On NAU8822 devices some of the outputs can be in a boost or non...

Page 16: ...ur basic groups of functions 1 Radio button controls for motherboard and device management 2 Board Settings to select various motherboard hardware configuration options 3 Device Settings to select pow...

Page 17: ...ion matches this default configuration The other Device Control radio buttons change various features as indicated by the text in the button These change many different register values and in many cas...

Page 18: ...tion of the panel do NOT become effective until pushing the Config Board radio button This button is located at the bottom of this grouping of controls Figure 8 DEVICE CONTROL PANEL BOARD SETTINGS 7 3...

Page 19: ...controller chip is included on the motherboard for coupling audio to and from the device on the daughter card using I2S serial data Selecting this option will reset the SPDIF controller 7 5 2 I2S Mast...

Page 20: ...I2S audio is streamed from the SPDIF controller included on the motherboard Bi directional level shifters are selected by this option to connect the daughter card to the SPDIF controller instead of t...

Page 21: ...be the I2S slave 7 5 8 Digital Audio Slave This control is for when I2S audio is streamed to the SPDIF controller included on the motherboard Bi directional level shifters are selected by this option...

Page 22: ...on and evaluation of the power control features The function of each of these control bits is explained in detail in the NAU8822 device Design Guide documentation The names for each control in this pa...

Page 23: ...to specific control bits in the NAU8822 control registers The description and function for each of these bits can be found most easily by doing a text string search in the Details of Register Operati...

Page 24: ...on and evaluation of the ADC section features and signal processing settings The function of each of these control bits is explained in detail in the NAU8822 device Design Guide documentation The name...

Page 25: ...ters as described in the detailed register map in the NAU8822 Design Guide The description and function for each of these bits can be found most easily by doing a text string search in the Details of...

Page 26: ...ts in the NAU8822 control registers as described in the detailed register map in the NAU8822 Design Guide The description and function for each of these bits can be found most easily by doing a text s...

Page 27: ...NAU8822 device Design Guide documentation Also the names for each control bit in this panel match the names given to specific control bits in the NAU8822 control registers as described in the detaile...

Page 28: ...sign Guide is a good method to quickly locate specific information about a specific control bit function Figure 15 DAC PLL DIGITAL AUDIO PANEL DAC CONTROL 13 2 Oversampling DAC and ADC performance is...

Page 29: ...ection the details of all of the functions and bits are described in detail in the NAU8822 design guide and appendices The bit names match this documentation and using a text string search in the Desi...

Page 30: ...a 12 000MHz external MCLK into an internal 12 288MHz signal for the internal IMCLK signal which sets a 48 000kHz sample rate for both the ADC and DAC The ADC and DAC always have the same sampling rate...

Page 31: ...e As mentioned in the heading of this section the details of all of the functions and bits are described in detail in the NAU8822 design guide and appendices The bit names match this documentation and...

Page 32: ...cies in the design guide are for a 48kHz sample rate For example if the actual sample rate is 24kHz then the Equalizer cutoff frequencies will be one half of the values listed for 48kHz in the Design...

Page 33: ...functions is explained in detail in the NAU8822 device Design Guide documentation Also the names for each control bit in this panel match the names given to specific control bits in the NAU8822 contro...

Page 34: ...are values that are remembered by software and that should be the same as the actual values used by the device If there is ever any uncertainty whether or not the values in the display truly reflect...

Page 35: ...rent bit field 15 2 Register Map Update Bits write only bits The bits known as update bits are commands to the device that are not physically stored in the device control registers These bits are disp...

Page 36: ...executed and at the top of the panel are three the radio button controls The Run command will cause the entire script to be executed at that time The Save command will save the current script into sh...

Page 37: ...CODEC Motherboard A time delay can be inserted by using negative 1 hexadecimal 0x 1 as the register address followed by an equal sign and then an integer decimal value In this case the script program...

Page 38: ...rd at an angle so that it can be seen clearly visually that one row is completely and correctly aligned After this first row begins to become connected then in a rolling or rotating motion swing the d...

Page 39: ...CODEC Motherboard Manual Version 1 3 Page 39 of 66 April 12 2016 CODEC Motherboard Figure 22 NAU8822 DAUGHTER CARD AS ORIENTED ON EVB WITH MIC ENABLED...

Page 40: ...pply for the EVB and each regulated supply that supports the daughter card can be replaced with an external power supply connection This makes it easy to test alternative power configurations WARNING...

Page 41: ...T_VDDB 1 8V to 3 6V VDDB must be VDDC J20 Pin 1 2 shorted selects External VDDB via J22 Pin 2 3 shorted selects VDDB 3 3Vdc J26 EXT_ 5V_IN 0 0Vdc to 5 5Vdc n a Note There is no jumper for this option...

Page 42: ...on the daughter card with no connection at all to any component on the motherboard On newer revisions of the EVB motherboard the LINK jumpers are a red color plastic Jumper Supply Name Jumper Selecti...

Page 43: ...ck bottom H1 3 H1 6 None None Left Line Level Input LLIN Pin 3 Right Line Level Input RLIN Pin 6 J2 Phono Right RCA jack top RCA jack bottom H1 5 H1 4 J10 2 3 J12 2 3 Right Inverting Mic Input RMICN P...

Page 44: ...unction and Signal Name Device Pin Number on NAU8822 J39 Line Out RCA jack top RCA jack bottom H1 3 H1 6 J30 1 2 J31 1 2 Left Line Level Output LHP Pin 30 Right Line Level Output RHP Pin 29 J45 Headph...

Page 45: ...AC coupled J33 and J35 not installed on motherboard DC position connecting pins 2 3 Headphone is tied to AUXOUT2 which should be configured as a virtual ground and in which case the headphone may be...

Page 46: ...as a virtual ground for the headphone This is done by moving jumper J32 to short the pin 2 3 position In this mode of operation the Auxout2 output is normally set to Mute but enabled to output the sa...

Page 47: ...using a wide range of available signals on its MCLK pin When using S PDIF as an audio source the S PDIF transceiver provides a suitable MCLK When using USB the W681308 provides the 12 000MHz USB clock...

Page 48: ...put There are three methods to stream digital audio from the motherboard or external devices into the NAU8822 audio data interface These paths are set up using the appropriate connectors and also usin...

Page 49: ...from an external USB host through the W681308 microcontroller and output in I2S format to the device on the daughter card USB audio is in a standard USB isochronous stream format Level shifters are in...

Page 50: ...vailable on the S PDIF serial output from RCA jack J9 When the W681308 has configured the motherboard to use the S PDIF transceiver the I2S audio and clock signals to from the NAU8822 are available on...

Page 51: ...er SPDIF_FRAME_IN frame sync from daughter card if provided by device on card J7 pin4 Header SPDIF_BCLK_IN bit clock from daughter card if provided by device on card J7 pin5 Header SPDIF_DACDAT_OUT se...

Page 52: ...ignator Connector Style Pin Number Signal Name CON1 miniUSB Type B 1 VCC 2 USBD 3 USBD 4 NC 5 GND 6 SHIELD 7 SHIELD 8 SHIELD 9 SHIELD Table 7 USB CONNECTOR 26 1 Special Connectors The motherboard is c...

Page 53: ...il 12 2016 CODEC Motherboard 27 Jumpers All images of the motherboard show the jumpers in the standard configuration This image may be used for reference to restore jumpers to the original factory new...

Page 54: ...actory use with the W681308 USB controller J30 2 3 short Position 1 2 Left Line_Out select and Position 2 3 selects Left HP _Out Left headphone out J31 2 3 short Position 1 2 Right Line_Out select and...

Page 55: ...CODEC Motherboard Manual Version 1 3 Page 55 of 66 April 12 2016 CODEC Motherboard 28 Test Points Figure 30 TEST POINTS...

Page 56: ...1 Right MIC In Negative RMIC TP12 Left MIC In positive LMIC TP13 Left MIC In Negative LMIC TP14 VDDC Source J17 J17 VDD SRC TP15 VDDB Source J23 J23 I2C TP16 Analog Voltage test point VDDA TP17 Speake...

Page 57: ...18 4 7UF R19 0 AGND DGND R15 100 AGND DUT_SCLK DUT_AUXOUT2 C3 1UF AGND DGND DUT_ADCOUT DUT_SCLK R25 1 2K 1 M DUT_MODE C14 1UF TP2 R6 0 R23 no pop DUT_SPKVDD DUT_DBVDD DUT_VREF DUT_FS DUT_AVDD C9 1UF R...

Page 58: ...CODEC Motherboard Manual Version 1 3 Page 58 of 66 April 12 2016 CODEC Motherboard Figure 31 NAU8822 DAUGHTER CARD SCHEMATIC...

Page 59: ...ed Rmbias must not be loaded C87 220PF R85 NoLoad AGND C83 220PF R78 680 RIGHT MIC INPUT R71 NoLoad C90 1UF TP7 TP C102 1UF C85 220PF R66 NoLoad C91 1UF LINK1 C89 220PF R61 NoLoad Red Stereo Mic Selec...

Page 60: ...GND R122 100 R116 100 C135 1UF TP19 TP AGND AGND C137 220PF J45 SJ 3504 1 2 3 5 C64 NoLoad DUT_AUXOUT1 PG1 R112 47K R113 47K C133 220PF 10UF C131 J39 3 2 1 R123 100 10UF C130 C138 1UF AGND C132 220PF...

Page 61: ...for I2S data format Yellow R2 47K R3 47K SPDIF_FRAME_OUT PG4 SPDIF_MCLK_OUT PG4 R4 1 2K DGND V33USB 5V_IN J5 SPDIF_IN 2 1 3 4 U1 TORX177 2 4 6 1 3 5 SPDIF_MCLK_OUT SPDIF_ADCDAT_IN PG4 5 R5 47K C3 0 1U...

Page 62: ...DGND SDI WS J37 CON12 1 2 3 4 5 6 7 8 9 10 11 12 R30 2K J27 CON5 1 2 3 4 5 USB_SCLK R43 47K 5V_IN USB_SCLK 5V_IN 5V_IN DUT_RLIN_GPIO PG1 2 4 XTO TCK R47 270 C48 0 1UF DGND SCK U25 PCA9306_VSSOP 3 4 8...

Page 63: ...1 EN VREF1 GND VREF2 SCL2 SDA2 DACIN_AP C11 0 1UF SPDIF_SLV_EN PG5 DUT_DACIN R82 NOPOP R7 330 DUT_ADCOUT DACIN_AP MCLK_AP C29 0 1UF U4 PCA9306_VSSOP 3 4 8 2 1 7 6 5 SCL1 SDA1 EN VREF1 GND VREF2 SCL2 S...

Page 64: ...4 7V DBVDD R89 TBD AGND C129 0 01UF J36 BANANA C103 1UF AGND DGND AGND U21 SPX1117 1 2 3 4 ADJ VOUT VIN VOUT TP14 1 8VC FB2 D17 BAT60J 1 2 C41 10UF U10 SPX1117 1 2 3 4 ADJ VOUT VIN VOUT 4 7V DBV C112...

Page 65: ...R MAP CONTROL PANEL OVERVIEW 34 Figure 20 REGISTER MAP CONTROL DETAILS 35 Figure 21 SCRIPT CONTROL PANEL 36 Figure 22 NAU8822 DAUGHTER CARD AS ORIENTED ON EVB WITH MIC ENABLED 39 Figure 23 POWER RELAT...

Page 66: ...airplane or spaceship instruments transportation instruments traffic signal instruments combustion control instruments or for other applications intended to support or sustain life Further more Nuvot...

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