HT82V731

AudioD/AConverter

Features

·CMOStechnology·Lowpowerconsumption

·Twovoltageoutputchannelinthesamechip·16-bitdynamicrange

·Lowtotalharmonicdistortion·5voltagesinglepowersupply·Datain2¢scomplementformat,TTL·8-pinSOPpackage

Applications

·Digitalaudioequipment·CDROM/VCD

·MPEGcard

GeneralDescription

HT82V731isa16-bitdigital-to-analogconverterICuti-lizingCMOStechnologyspeciallydesignedforstereoaudioapplication.

HT82V731convertsthe16bitsserialdataintoanana-logoutputvoltage.Thedigitaldataisinternallycon-vertedtofloatingpointexpressionwhoseformatconsistsof10bitsmantissaand7stepexponent.

UsinganR-stringvoltagedivider,thisfloatingpointex-pressiondataisthenconvertedtoanalogvoltage.ItiscompatiblewithTDA1311.Itisavailablein8-pinSOPpackage.

BlockDiagram

PinAssignment

Rev.1.001October29,2002

HT82V731PinDescription

PinNo.12345678

PinNameBCKWSDINVSSVDDLCHNCRCH

I/OIII¾¾O¾O

BitserialclockinputWordselectinputDatainput

Negativepowersupply,groundPositivepowersupplyLeftchanneloutputNoconnectionRightchanneloutput

Description

ElectricalCharacteristics

SymbolVDDIDDVOfBCKfWSTHDDRS/NCT

Parameter

SupplyVoltageSupplyCurrent

MaximumOutputAmplitudeBitClockInputFrequencyWordSelectInputFrequencyTotalHarmonicDistortionDynamicRangeSignaltoNoiseRatioCrossTalk

TestConditionsVDD¾5V5V¾¾5V5V5V5V

Conditions

¾¾¾¾¾

1kHz,0dB

¾

1kHz,0dB1kHz,0dB

Min.4.5¾¾¾¾¾¾¾¾

Typ.5.0¾2.5¾¾0.121682¾

Max.5.56.0¾18.4300¾¾¾¾

Ta=25°CUnitVmAVppMHzkHz%BitdBdB

TimingDiagrams

Timingandinputsignals

Rev.1.002October29,2002

HT82V731ApplicationCircuits

Rev.1.003October29,2002

HT82V731PackageInformation

8-pinSOP(150mil)outlinedimensions

SymbolABCC¢DEFGHa

Dimensionsinmil

Min.22814914153¾42240°

Nom.¾¾¾¾¾50¾¾¾¾

Max.2441572019769¾10281210°

Rev.1.004October29,2002

HT82V731ProductTapeandReelSpecifications

Reeldimensions

SOP8N

SymbolABCDT1T2

Description

ReelOuterDiameterReelInnerDiameterSpindleHoleDiameterKeySlitWidth

SpaceBetweenFlangeReelThickness

Dimensionsinmm

330±1.062±1.513.0+0.5

-0.22.0±0.1512.8+0.3

-0.218.2±0.2

Rev.1.005October29,2002

HT82V731Carriertapedimensions

SOP8N

SymbolWPEFDD1P0P1A0B0K0tC

Description

CarrierTapeWidthCavityPitchPerforationPosition

CavitytoPerforation(WidthDirection)PerforationDiameterCavityHoleDiameterPerforationPitch

CavitytoPerforation(LengthDirection)CavityLengthCavityWidthCavityDepth

CarrierTapeThicknessCoverTapeWidth

Dimensionsinmm

12.0+0.3

-0.18.0±0.11.75±0.15.5±0.11.55±0.11.5+0.254.0±0.12.0±0.16.4±0.15.20±0.12.1±0.10.3±0.059.3

Rev.1.006October29,2002

HT82V731HoltekSemiconductorInc.(Headquarters)

No.3,CreationRd.II,Science-basedIndustrialPark,Hsinchu,TaiwanTel:886-3-563-1999Fax:886-3-563-11http://www.holtek.com.tw

HoltekSemiconductorInc.(SalesOffice)

11F,No.576,Sec.7ChungHsiaoE.Rd.,Taipei,TaiwanTel:886-2-2782-9635Fax:886-2-2782-9636

Fax:886-2-2782-7128(Internationalsaleshotline)

HoltekSemiconductor(Shanghai)Inc.

7thFloor,Building2,No.8,YiShanRd.,Shanghai,ChinaTel:021-85-5560Fax:021-85-0313

http://www.holtek.com.cn

HoltekSemiconductor(HongKong)Ltd.

RM.711,Tower2,CheungShaWanPlaza,833CheungShaWanRd.,Kowloon,HongKongTel:852-2-745-8288Fax:852-2-742-8657

HolmateSemiconductor,Inc.

48531WarmSpringsBoulevard,Suite413,Fremont,CA94539Tel:510-252-9880Fax:510-252-9885

http://www.holmate.com

CopyrightÓ2002byHOLTEKSEMICONDUCTORINC.

TheinformationappearinginthisDataSheetisbelievedtobeaccurateatthetimeofpublication.However,Holtekas-sumesnoresponsibilityarisingfromtheuseofthespecificationsdescribed.TheapplicationsmentionedhereinareusedsolelyforthepurposeofillustrationandHoltekmakesnowarrantyorrepresentationthatsuchapplicationswillbesuitablewithoutfurthermodification,norrecommendstheuseofitsproductsforapplicationthatmaypresentarisktohumanlifeduetomalfunctionorotherwise.Holtekreservestherighttoalteritsproductswithoutpriornotification.Forthemostup-to-dateinformation,pleasevisitourwebsiteathttp://www.holtek.com.tw.

Rev.1.007October29,2002