OTP语音芯片资料.docx

OTP语音芯片资料.docx

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OTP语音芯片资料

LXB20Description

LXB20isa20SecEasyUseSpeechIC.ItSupportPWMorDACvoiceoutputwithhighqualityspeech,Thereare20secondVoiceLengthunder6KHzsamplingand4bithardwarecompression.Itsinternalbuilt-inaoscillatorforsystemclockwithoutanexternalresistor.Maximum63voicegroups.OneGroupcontainseveralsteps（voicesection）;Maximum700stepsforalltheGroups.EachStepcanbedefineTriggerMode,OutputStatus,VoiceSection,Mutelength,I/OType&SimpleProgrammingFunction.Usercanselect8bit/5bit/4bitdatacompression.SupportthreemodetriggerIC（StandAlone,SerialTriggerMode,CPUCommandMode）.Easyusedevelopmentsystemisforfunctionselectionandvoicecombination.PCdownloadtheROMcodebytheUSBPort.

Functions

MAXvoicefile:

700MAXTriggerGroups:

63PowerOnTriggerGroup:

1MAXStep:

700Signalstepmutelength:

0.64s（6ksamplerate）OperatingVoltagerange:

2.4V~3.6VTotalVoiceDuration:

20”（120KSamples）I/Opin:

4Voiceoutput:

PWMorDACSequentialKey:

TG1->32Groups.

TG2->29Groups.

TG3,TG4->1Group

Debouncetime:

50usor10ms

On/Offfunction:

onlyforallTGPIN

SequentialKeyforVolumecontrolfunction.

StepcanchangeTriggerI/OType,TriggerMode&OutputStatus.HardwareTriggerGroupRepeatfunction.

SimpleProgrammingFunction:

（a）Writedatatoworkingregister.

（b）WorkingRegisterIncreasing.

（c）StepJumpbyWorkingRegister/VolumeStatus.

V.2.0217/26/2010

LXB20●ThreeModeTriggerIC:

-KeyStand-aloneTriggerMode:

A.Edge/Level

B.Hold/Unhold

C.Retrigger/Irretrigger

-SerialTriggerMode:

CombinationsofTG1andTG2totriggermaximum63VoiceGroup.

-CPUCommandMode:

UsercommandthroughTG1,TG2,TG3&TG4withserialCPUInterfacetocontroltheMulti-Playbackfunction.

●Outputstatus（foreachOutputpin）:

A.StandbyStatus.（High/LowStatus）

B.BusyLowActive.

C.BusyHighActive.

D.LEDFlashat6Hz.

E.LEDFlashat3Hz.

F.LEDFlashat1.5Hz.

G.LEDFlashat0.75Hz.

H.PWMforLEDDimmingControl.

●Playratelevel:

TG020canprovidedifferentplayrateinonecodeasfollowbelowReferenceSampleRate.

3K,3.2K,3.31K,3.42K,3.55K,3.69K,3.84K,4K,4.17K,4.36K,4.57K,

4.8K,5.05K,5.33K,5.64K,6K,6.4K,6.85K,7.38K,8K,8.72K,9.6K,10.66K,12K,13.71K,16K,19.2K,24K.

●TG2LowReset

●TG3VolumeControl

V.2.0227/26/2010

LXB20

LXB20PadLocation

CHIPSIZE:

（0,0）（1734,715）UM

NO.12345

X-777-777-605-520256

Y-184-270-267-267-271

NO.6789

X

440793796793

Y-266-288-204-119

PADNAMEPADNAME

TG2/RSTBTG1TG3TG4VSSVSSPWM1VDD

PWM2/DAC

V.2.0237/26/2010

LXB20PINDescriptionsPINNAMEI/O

INPUT

FunctionKeyStand-aloneTriggerMode:

TG1isusedtotriggerthemaximum32VoiceGrouponebyonesequentially.SerialTriggerMode:

TG1isusedtotriggerthemaximum64VoiceGroup.CPUCommandMode:

TG1isusedasDataInputPin（CS）.

KeyStand-aloneTriggerMode:

TG2isusedtotriggerthemaximum21VoiceGrouponebyonesequentially.

SerialTriggerMode:

TG2isusedtotriggerthemaximum64VoiceGroupCPUCommandMode:

TG2isusedasClockPin（CLK）.

KeyStand-aloneTriggerMode:

TG11isusedtriggerOnlyOneGroup.CPUCommandMode:

TG11isusedasDataInputPin（DIO1）.

KeyStand-aloneTriggerMode:

TG4isusedtriggerOnlyOneGroup.CPUCommandMode.TG4isusedasSelectedPin（DIO2）.

AsaDACPIN,8bitD/ACurrentOutput.

PowerSupplyPIN,@2.4~3.6VWorkingVoltage.

ConnectedtoGround.TG1TG2/RSTBINPUTTG3TG4PWM1PWM2VDDVSS

INPUTINPUTINPUTINPUTOUTPUTAsOutputPIN,OutputtheBUSYorFlashSignal./ByCodeControlOUTPUTAsOutputPIN,OutputtheBUSYorFlashSignal./ByCodeControlOUTPUTAsaPWMPIN,canDirectlydrivetheSpeaker.OUTPUTAsaPWMPIN,canDirectlydrivetheSpeaker.

V.2.0247/26/2010

LXB20

◆TG2LowReset

◆LXB20ApplicationCircuit

3VStand-aloneMode

VDD@2.4V~3.6V

Speaker

V.2.0257/26/2010

LXB20

3VSerialMode

VDD@2.4V~3.6V

Fig.3

Fig.4

V.2.0267/26/2010

LXB20

3VCPUMode

VDD@2.4V~3.6V

V.2.0277/26/2010

LXB20

LXB20TriggerTiming

（a）TriggerPulseWidth

OptionSetting=Edge/Unhold

（b）TriggerPulseWidth

OptionSetting=Edge/Hold

（c）TriggerPulseWidth

（d）TriggerPulseWidth

（e）TriggerPulseWidth>GroupLength

OptionSetting=Edge/Unhold

（f）TriggerPulseWidth>GroupLengthOptionSeeting=Edge/Hold

（g）TriggerPulseWidth>GroupLength

OptionSetting=Level/Unhold

（h）TriggerPulseWidth>GroupLengthOptionSetting=Level/Hold

V.2.0287/26/2010

（i）OptionSetting=Retrigger

LXB20（j）OptionSetting=Irretrigger

（k）TG1=SequentialTrigger&FromGroup1~Group5

V.2.029

7/26/2010

LXB20LXB20TriggerVoiceCombinationExampleVoiceFile

VoiceFileA

VoiceFileB

VoiceFileC

VoiceFileD

VoiceFileE

DescriptionHello（1.5”）GoodMorning（3”）John（1”）Tom（1”）Mary（1.5”）

Group1=Step1+Step2

Group2=Step3+Step4+Step5

Group3=Step6+Step7

Group1=HelloJohn

Group2=HelloTomGoodMorning

Group3=GoodMorningMary

Step1=VoiceFileA

Step2=VoiceFileC

Step3=VoiceFileA

Step4=VoiceFileD

Step5=VoiceFileB

Step6=VoiceFileB

Step7=VoiceFileE

Totaluse3Group,7Steps

Voiceduration=Hello+GoodMorning+John+Tom+Mary

=1.5”+3”+1”+1”+1.5”

=8”

Totalduration=8”（20”-8”=32”spacearefree,canaddmoreVoiceFile）

V.2.02107/26/2010

LXB20◆LXB20SerialModeTiming

TG1=Edge/Unhold/Retriger

TG2=ResetPIN

●PWM

●DAC

V.2.02117/26/2010

LXB20

LXB20CPUModeTiming

Command

PINHEXDIO1A5hDIO205hDIO181hDIO205hDIO183hDIO202hDIO183hDIO207hDIO105hDIO207h

[7]

[6]

[5]

[4]

[3]

[2]

[1]

[0]

Description

Wakeupthechip

STARTENDRESETPAUSERESUME

1010101000

0000000000

1000000000

0000000000

0000000000

1101001111

0000110101

1111111111

Powerdownthechipintostandbystatus

StopthePlaybackandwaitanewcommand

PausethePlaybackandholdattheVoicedata

ResumePlaybackfromthepreviousVoicedata

PlayAddressCommandisgeneratedbytheTool.

V.2.02127/26/2010

LXB20LXB20VoiceWave&OutputStatus

VoiceWave

Flash1

WaveForm

Flash2

WaveForm

BusyHigh

WaveForm

WaveForm

TriggerStart

End

V.2.02137/26/2010

LXB20

DCElectricalCharacteristics

Item

OperatingvoltageStandbycurrentOperatingcurrent

DrivecurrentofOutput

MinTypMaxUnit

VDDIsbIopIodIosIodIos

2.4

3.016001030200200

3.65

VuAuAmAmAmAmA

Condition

VDD=3V,noloadVDD=3V,noloadVDD=3VVOUT=0.6VVDD=3VVOUT=2.4VVDD=3V,VOUT=1.5VVDD=3V,VOUT=1.5V

DrivecurrentofPWMSinkcurrentofPWM

V.2.02147/26/2010

LXB20

ACElectricalCharacteristics

Symbol

tdbtdbtgrtPWtPItBHtBDtdVtCStDStDHtCPtCCtCH

Characteristic

KeyTriggerdebouncetime（long）KeyTriggerdebouncetime（short）KeyTriggerPulsewidthSerialModeInputPulseWidthTheintervaloftwopulseBusysignaloutputholdtimeBusysignaloutputdelaytimeVoiceouputdelaytimeChipSelectsetuptimeDataInsetuptimeDataInholdtimeClockPulseWidthClockCycletimeChipSelectholdtime

Rating

Unit

Min.Typ.Max.

1450100100200200200111121

msusususususususususususus

V.2.02157/26/2010

LXB20

LXB20PackageInformationLXB20-S08B

PIN

1

2

3

4

5

6

7

8

NAMETG2/RSTBTG1TG3TG4VSSPWM1VDDPWM2/DAC

LXB20-D08B

PIN1

2

3

4

5678

NAMETG2/RSTBTG1TG3TG4VSSPWM1VDDPWM2/DAC

V.2.02167/26/2010