NXP TWR-AUDIO-SGTL User guide

Brand: NXP

Model: TWR-AUDIO-SGTL

Category: Motorcycle Accessories

Type: User guide

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Freescale Semiconductor Document Number: TWRAUDIOSGTLUG

User’s Guide Rev. 1.0, 11/2013

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TWR‐AUDIO‐SGTLAudioModule

User'sGuide

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Rev.1.0

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©2013FreescaleSemiconductor,Inc.Allrightsreserved.

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Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 2

TableofContents

1 TWR‐AUDIO‐SGTLOverview...............................................................................................................4

1.1Gettingstarted.....................................................................................................................................................................5

1.2Referencedocuments........................................................................................................................................................5

1.3AssemblingtheTWR‐AUDIO‐SGTLmodule............................................................................................................5

2 TWR‐AUDIO‐SGTLHardwareDescription......................................................................................6

2.1SGTL5000AudioCodec....................................................................................................................................................6

2.2Si5351AClockGenerator................................................................................................................................................7

2.3HarwareResetConsiderations.....................................................................................................................................7

2.4MasterClockSourceSelection......................................................................................................................................7

2.4.1MasterClockCompatibilityWithPreviousModuleRevisions.......................................................................................7

2.5I2SInterface..........................................................................................................................................................................7

2.6I/Oconnectors.....................................................................................................................................................................7

2.6.1Analogaudiolinelevelstereooutput.......................................................................................................................................8

2.6.2Analogaudiolinelevelstereoinput..........................................................................................................................................8

2.6.3Analogaudiostereoheadphoneoutputs.................................................................................................................................8

2.6.4Analogaudiomonomicrophoneinputs...................................................................................................................................8

2.7Jumpertable..........................................................................................................................................................................9

2.8TowerElevatorconnections.......................................................................................................................................10

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Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 3

ListofFigures

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Figure1.FreescaleTowerSystemoverview...............................................................................................4

Figure2.CalloutsontopsideoftheTWR‐AUDIO‐SGTL.............................................................................5

Figure3.AssembledTowerSystemwithTWR‐AUDIO‐SGTLmodule(inblack)locatedinadjacentslotto

processormodule(inred)...........................................................................................................................6

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Figure4.LocationofTWR‐AUDIO‐SGTLjumpers.......................................................................................9

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ListofTables

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Table1.TWR‐AUDIO‐SGTLjumpers.........................................................................................................10

Table2.TWR‐AUDIO‐SGTLPrimaryElevatorconnectorpinout...............................................................10

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RevisionHistory

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Revision Date

Changes

1.0 November7,2013 InitialRelease

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Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 4

1 TWR‐AUDIO‐SGTLOverview

TheTWR‐AUDIO‐SGTLisaperipheralmodulecompatiblewiththeFreescaleTowerSystem(Figure1).

TheTWR‐AUDIO‐SGTLperipheralmodulefeaturestheSGTL5000audiocodecandprovidesanaudio

interfacefortheFreescaleTowerSystem.TheSGTL5000isalow‐powerstereocodecthatincludesa

headphoneamplifierandisdesignedtoprovideacomprehensiveaudiosolutionforportableproducts

thatrequireline‐in,microphone‐in,line‐out,headphone‐outanddigitalI/O.AspartoftheFreescale

TowerSystem,theTWR‐AUDIO‐SGTLmodulemaybeusedwithawiderangeofTowerSystem

MCU/MPU,peripheral,sensorandcommunicationmodules.

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Figure1. FreescaleTowerSystemoverview

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ThefeaturesoftheTWR‐AUDIO‐SGTLperipheralmoduleasshowninFigure2are:

 SGTL5000low‐powerstereocodecwithheadphoneamplifier

 Tunableclockgenerator

 Stereoline‐inon3.5mmjack

 Stereoline‐outon3.5mmjack



Headphoneoutputon3.5mmjack

 Capacitor‐lessheadphoneoutputon3.5mmjack

 Smartphonecompatibleheadset(headphoneoutput/microphoneinput)on3.5mmjack

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Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 5

 Microphoneinputon3.5mmjack

 Spaceprovidedonboardtomountanelectretmicrophone

 CompatiblewithTowerSystemprocessormodulesusingKinetis,KinetisL,VybridandColdFire+

microcontrollers

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Figure2. CalloutsontopsideoftheTWR‐AUDIO‐SGTL

1.1 Gettingstarted

TheTWR‐AUDIO‐SGTLisaperipheralmodulefortheFreescaleTowerSystemthatoperatesunderthe

controlofaTowerSystemprocessormodule.SeeSection1.3formoreinformationaboutusingTWR‐

AUDIO‐SGTLinaTowerSystem.Thereisalsoalabguideavailableonthetoolsupportpageforthe

TWR‐AUDIO‐SGTLattheFreescaleTowerSystemwebpage:www.freescale.com/tower

1.2 Referencedocuments

ThedocumentsandlinkslistedbelowshouldbereferencedformoreinformationontheTWR‐AUDIO‐

SGTLandtheTowerSystem:

 FreescaleTowerSystem:www.freescale.com/tower

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 TWR‐AUDIO‐SGTL‐QSG:QuickStartGuide

 TWR‐AUDIO‐SGTL‐SCH:Schematics

 TWR‐AUDIO‐SGTL‐PWB:DesignPackage

 TWR‐AUDIO‐SGTL‐HWER:Hardwareerrata

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1.3 AssemblingtheTWR‐AUDIO‐SGTLmodule

TheTowerSystemElevatorcardshavefourslotsavailabletoaccommodateTowerSystemprocessor

andperipheralmodules.AnassembledTowerSystemcanonlycontainoneprocessor(MCU/MPU)

module,upto3peripheralmodules,andoneside‐mountingperipheralmodule.Itisrecommended

thattheTWR‐AUDIO‐SGTLperipheralmodulebephysicallylocatedinanElevatorslotadjacenttothat

oftheTowerProcessormodule.Theslot,andtheorderofthemodulesintheslot,isnotimportant,

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Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 6

justtheiradjacentlocation.EnsurethattheTWR‐AUDIO‐SGTLperipheralmoduleedgeconnectorwith

thewhitestripisinsertedinaslotofthePrimaryElevatorcard(theonewithwhiteconnectors).

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Figure3. AssembledTowerSystemwithTWR‐AUDIO‐SGTLmodule(inblack)locatedinadjacentslotto

processormodule(inred)

2 TWR‐AUDIO‐SGTLHardwareDescription

TheTWR‐AUDIO‐SGTLisaTowerSystemperipheralmodulefeaturingtheSGTL5000audiocodecchip.

Thefollowingsectionsdescribethehardwareinmoredetail.ThisdocumentreferstotheTWR‐AUDIO‐

SGTLRevisionDandlater;itisnotapplicabletopreviousschematicsrevisions.Compatibilitywith

previousschematicsrevisionsisdiscussedinsection2.4.1.

2.1 SGTL5000AudioCodec

TheSGTL5000audiocodecconnectstotheTowerSystemprocessoroverI2Cserialcommunicationfor

control,andoverI2Sfordigitalaudiodata.

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ThedefaultI2CaddressesfortheSGTL5000audiocodecare:

1) Writeaddress:0x14

2) Readaddress:0x15

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ThemaximumI2CclockratefortheSGTL5000is

400kHz.However,duetoTowerSystem

configuration,capacitiveloadingandI2Cpull‐upresistorvalues,theI2Ccommunicationmayneedto

operateatalowerclockfrequency.JumpersJ1andJ2maybeusedtoadd4.7kOhmresistorstoI2C

SDAandSCLsignallines,toallowhigherclock

frequency.

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Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 7

DigitalaudiodataistransportedbetweentheSGTL5000andtheprocessoroverI2Sdatalines.The

master/slaveconfigurationisdefinedbysoftwaredrivers.Notemasterclockrequirementsofthe

SGTL5000forappropriateconfiguration.

2.2 Si5351AClockGenerator

TheSi5351AtunableclockgeneratorconnectstotheTowerSystemprocessoroverI2Cserial

communicationforcontrol.Itsdefaultoutputfrequencyis24.576MHz.Theoutputfrequencycanbe

changedbyprogrammingitsinternalregistersoverI2Ccommunication.

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TheI2CaddressesfortheSi5351Atunableclockgeneratorare:

1. Writeaddress:0xDE

2. Readaddress:0xDF

2.3 HarwareResetConsiderations

TheSGTL5000chiphasinternalpower‐onhardwarereset,butnoexternalhardwareresetinput.

Optionally,inadevelopmentenvironment,thepowertotheTWR‐AUDIO‐SGTLcanbeforcedtocycle

throughpoweroff/onwhentheTowerSystemprocessormoduleassertsthehardwareresetsignal.

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JumperJ3allowsselection

ofthehardwareresetfunctionality:

1) ForJ3inposition1‐2:TowerSystemprocessormodulehardwareresetdoesnotcyclethe TWR‐

AUDIO‐SGTLpower.

2) ForJ3inposition2‐3:TowerSystemprocessormodulehardwareresetwillinitiateapower

off/powerupcycleoftheTWR‐AUDIO‐SGTLcircuitry.Thepoweroffstatewilllast

approximately20msec.

2.4 MasterClockSourceSelection

ThereisachoiceoftwomasterclocksourcesfortheSGTL5000intheTWR‐AUDIO‐SGTLmodule.The

selectionisdonewithjumperJ6:

1) J6off:LocalSi5351Atunable clockgenerator(24.576MHzdefaultfrequency)

2) J6on:MasterclockfromtheTowerprocessormoduleI2Sport

2.4.1 MasterClockCompatibilityWithPreviousModuleRevisions

TheTWR‐AUDIO‐SGTLRevDmodulecanreplacepreviousmodulerevisionsafterproperselectionof

themasterclocksource.ToreplaceaRevBmodule,ensurethatjumperJ6ison(insertedinposition1‐

2),toselectthemasterclockfromtheTower

processormodule.ToreplaceaRevB1module,ensure

thatjumperJ6isoff(notinsertedinposition1‐2),toselectthemasterclockfromtheon‐boardclock

generator.

2.5 I2SInterface

TheI2Sinterfacehasaserialdatainput,aserialdataoutput,aframesyncclock(alsocalledleft/right

clock)andaserialbitclock.Thetwoclocklinesareusedtoclockbothdatalines.TheI2Ssignalsare

connectedtotheTowerSystemprocessormoduleI2Sport.

2.6 I/Oconnectors

AlltheinputandoutputconnectorsontheTWR‐AUDIO‐SGTLaredescribedinthefollowingsections.

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Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 8

2.6.1 Analogaudiolinelevelstereooutput

Theanalogaudiolinelevelstereooutputisavailableatthestereo3.5mmconnectorJ12.These

outputssupportloadsof10kOhmormore.

2.6.2 Analogaudiolinelevelstereoinput

Theanalogaudiolinelevelstereoinputisavailableatthestereo3.5mm

connectorJ9.

2.6.3 Analogaudiostereoheadphoneoutputs

Theanalogaudiostereoheadphoneoutputsareavailableasfollows:

1) Atthe3.5mmconnectorsJ4andJ7–throughDCblockingcapacitors

2) Atthe3.5mmconnectorJ10–usingvirtualheadphonegroundandnoDCblockingcapacitors



TheSGTL5000audio

codeccandriveasingleheadphoneload,soonlyoneofconnectorsJ4,J7orJ10

maybeusedatatime.



Notethatthecapacitor‐lessheadphoneoutputatconnectorJ10mustbeusedonlywithstereo

headphones.Thisoutputshouldnotbeusedtoconnecttoamplifiers,ortoheadsetswith

microphones,otherwisethevirtualheadphonegroundmaybeshort‐circuited.

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Recommendedheadphoneimpedanceisintherangeof16to32Ohms.

2.6.4 Analogaudiomonomicrophoneinputs

TherearethreeoptionsformicrophoneinputtotheSGTL5000:

1) BoardmountedmicrophoneP1–theTWR‐AUDIO‐SGTLmoduleshipswithouttheP1

microphoneontheboard.Ifdesired,P1canbesolderedatitslocationontheboard.

RecommendedP1microphoneisthePanasonicpartWM‐64PCTorequivalent.Microphonebias

mustbesuppliedbyensuringthatjumperJ14isinposition1‐2.Thisinputisselectedwhen

jumperJ11isinposition3‐4.

2) Externalmicrophoneinput3.5mmconnectorJ13–amicrophonefromaPCheadsetcanbe

pluggedintotheJ13connector.Microphonebiasissuppliedfroma3.3Vsourcethrougha10k

Ohmresistor.ThisinputisselectedwhenjumperJ11

isinposition3‐5.

3) Smartphoneheadsetinput3.5mmconnector J7–aSmartphoneheadsetwithheadphonesand

microphonecanbepluggedintotheJ7connector.Microphonebiasmustbesuppliedby

ensuringthatjumperJ14isinposition1‐2.TheiPhone®headsetiscompatiblewiththeJ7

connector.ThisinputisselectedwhenjumperJ11isinposition1‐3.



NotethatnotallSmartphoneheadsetsarecompatiblewiththesignalsattheJ7connector.Ensurethat

theheadset3.5mmplughasthecorrectsignalconnectivityasshownbelow:

1) Tip:HeadphoneLeftChannelOutput 

2) Ring:Headphone

RightChannelOutput

3) Ring:Ground

4) Sleeve:MicrophoneInput



Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 9

2.7 Jumpertable

ThereareseveraljumpersontheTWR‐AUDIO‐SGTLthatprovideconfigurationselection.Figure4

showsthelocationsofthejumpers,withthedefaultpositionsinred.RefertoTable1fordetails.The

defaultinstalledjumpersettingsareshowninboldinthetable.



Figure4. LocationofTWR‐

AUDIO‐SGTLjumpers



Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 10

Table1. TWR‐AUDIO‐SGTLjumpers

Jumper Option Setting Description

J1

Adds4.7kOhmpull‐upresistortoI2C

SDAdataline

ON Pull‐upadded

OFF Resistordisconnected

J2

Adds4.7kOhmpull‐upresistortoI2C

SCLdataline

ON Pull‐upadded

OFF Resistordisconnected

J3 Resetshutdownselection

1‐2 Noshutdown

2‐3 HardwareResetcausessh utdowncycle

J5 Disableaudiocodec ON Audiocodecenabled

OFF Audiocodecdisabled

J6 Masterclocksourceselection

OFF Si5351A(24.576MHzdefault)

ON MCLKfromprocessormodule

J11 Microphoneinputselection 3‐5 Externalmicrophone



3‐4

1‐3

Internalmicrophone

Smartphoneheadset

J14 Microphonebias 1‐2 Microphonebiasapplied

OFF Microphonebiasnotapplied



2.8 TowerElevatorconnections

TheTWR‐AUDIO‐SGTLfeaturestwoexpansioncard‐edgeconnectorsthatinterfacetothePrimaryand

SecondaryElevatorboardsinaTowerSystem.ThePrimaryElevatorconnector,comprisedofsidesA

(bottom)andB(top),isusedbytheTWR‐AUDIO‐SGTL.TheSecondaryElevatorconnector,comprised

ofsidesC(bottom)andD(top),havenoconnections.Table2providesthepinoutforthePrimary

Elevatorconnector.AnXintheUsedcolumnindicatesthataconnectionismadetothatpinonthe

connector.AnXintheJmpcolumnindicatesthatajumperisprovidedtoconfiguretheconnection.

Table2. TWR‐AUDIO‐SGTLPrimaryElevatorconnectorpinout

TWR-AUDIO-SGTL Primary Elevator connector

Side B

Side A

Name Usage Used Jmp Name Usage Used Jmp

B1 5V 5.0V Power X A1 5V 5.0V Power X

B2 GND Ground X A2 GND Ground X

B3 3.3V 3.3V Power X A3 3.3V 3.3V Power X

B4 ELE_PS_SENSE Power Sense A4 3.3V 3.3V Power X

B5 GND Ground X A5 GND Ground X

B6 GND Ground X A6 GND Ground X

SDHC_CLK / SPI1_CLK

I2C0_SCL I2C0_SCL X

SDHC_D3 / SPI1_CS1_b

I2C0_SDA I2C0_SDA X

SDHC_D3 / SPI1_CS0_b

A9 GPIO9 / CTS1

B10

SDHC_CMD / SPI1_MOSI

A10 GPIO8 / SDHC_D2

B11

SDHC_D0 / SPI1_MISO

A11 GPIO7 / SD_WP_DET

B12

ETH_COL

A12

ETH_CRS

B13

ETH_RXER

A13

ETH_MDC

B14

ETH_TXCLK

A14

ETH_MDIO



Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 11

TWR-AUDIO-SGTL Primary Elevator connector

Side B

Side A

Name Usage Used Jmp Name Usage Used Jmp

B15

ETH_TXEN

A15

ETH_RXCLK

B16

ETH_TXER

A16

ETH_RXDV

B17

ETH_TXD3

A17

ETH_RXD3

B18

ETH_TXD2

A18

ETH_RXD2

B19

ETH_TXD1

A19

ETH_RXD1

B20

ETH_TXD0

A20

ETH_RXD0

B21 GPIO1 / RTS1

A21

I2S0_MCLK

B22 GPIO2 / SDHC_D1

A22

I2S0_DOUT_SCK

I2S0_SCLK

B23 GPIO3

A23

I2S0_DOUT_WS

I2S0_LRCLK

B24 CLKIN0

A24

I2S0_DIN0

I2S0_DOUT

B25 CLKOUT1

A25

I2S0_DOUT0

I2S0_DIN

B26 GND Ground

A26 GND Ground

B27

AN7

A27

AN3

B28

AN6

A28

AN2

B29

AN5

A29

AN1

B30

AN4

A30

AN0

B31 GND Ground

A31 GND Ground

B32

DAC1

A32

DAC0

B33

TMR3

A33

TMR1

B34

TMR2

A34

TMR0

B35 GPIO4

A35 GPIO6

B36 3.3V 3.3V Power

A36 3.3V 3.3V Power

B37

PWM7

A37

PWM3

B38

PWM6

A38

PWM2

B39

PWM5

A39

PWM1

B40

PWM4

A40

PWM0

B41

CANRX0

A41

RXD0

B42

CANTX0

A42

TXD0

B43

1WIRE

A43

RXD1

B44

SPI0_MISO

A44

TXD1

B45

SPI0_MOSI

A45 VSS

B46

SPI0_CS0_b

A46 VDDA

B47

SPI0_CS1_b

A47 VREFA1

B48

SPI0_CLK

A48 VREFA2

B49 GND Ground

A49 GND Ground

B50

SCL1

A50 GPIO14

B51

SDA1

A51 GPIO15

B52 GPIO5 / SD_CARD_DET

A52 GPIO16

B53 USB0_DP_PDOWN A53 GPIO17

B54 USB0_DM_PDOWN A54

USB0_DM

B55

IRQ_H

A55

USB0_DP

B56

IRQ_G

A56

USB0_ID

B57

IRQ_F

A57

USB0_VBUS

B58

IRQ_E

A58

TMR7

B59

IRQ_D

A59

TMR6

B60

IRQ_C

A60

TMR5

B61

IRQ_B

A61

TMR4

B62

IRQ_A

A62

RSTIN_b RSTIN_B X X



Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 12

TWR-AUDIO-SGTL Primary Elevator connector

Side B

Side A

Name Usage Used Jmp Name Usage Used Jmp

B63

EBI_ALE / EBI_CS1_b

A63

RSTOUT_b

B64

EBI_CS0_b

A64 CLKOUT0

B65 GND Ground

A65 GND Ground

B66 EBI_AD15

A66 EBI_AD14

B67 EBI_AD16

A67 EBI_AD13

B68 EBI_AD17

A68 EBI_AD12

B69 EBI_AD18

A69 EBI_AD11

B70

EBI_AD19

A70 EBI_AD10

B71

EBI_R/W_b

A71 EBI_AD9

B72

EBI_OE_b

A72 EBI_AD8

B73

EBI_D7

A73 EBI_AD7

B74

EBI_D6

A74 EBI_AD6

B75

EBI_D5

A75 EBI_AD5

B76

EBI_D4

A76 EBI_AD4

B77

EBI_D3

A77 EBI_AD3

B78

EBI_D2

A78 EBI_AD2

B79

EBI_D1

A79 EBI_AD1

B80

EBI_D0

A80 EBI_AD0

B81 GND Ground

A81 GND Ground

B82 3.3V 3.3V Power

A82 3.3V 3.3V Power



 



Freescale Semiconductor TWR-AUDIO-SGTL Audio Module User’s Guide, Rev. 1.0 13

FCCCLASSADEVICE:"Thisdevicecomplieswithpart15oftheFCCRules.Operationissubject

tothefollowingtwoconditions:(1)Thisdevicemaynotcauseharmfulinterference,and(2)this

devicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesired

operation."



CEEMCDirective:ThisdevicecomplieswithEuropeanUnionEMCDirectiveandtheLow

VoltageSafetyDirective(LVD)[Productexhibitssomeanomalousbehaviorobservedoverthe

frequencyrangeof125MHz‐350MHzduringImmunitytesting]



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property of their respective owners.

TWRAUDIOSGTLUG

Rev. 1.0

11/2013

NXP TWR-AUDIO-SGTL User guide

Brand: NXP

Model: TWR-AUDIO-SGTL

Category: Motorcycle Accessories

Type: User guide

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