ebook img

16 Bits Low Power Stereo Audio ADC w/Microphone Bias & Microphone Amplifier datasheet PDF

54 Pages·2017·1.16 MB·English
by  
Save to my drive
Quick download
Download
Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.

Preview 16 Bits Low Power Stereo Audio ADC w/Microphone Bias & Microphone Amplifier datasheet

(cid:2)(cid:17)(cid:14)(cid:14)(cid:20)(cid:2)(cid:14)(cid:13)(cid:18)(cid:12) (cid:4)(cid:14)(cid:13)(cid:8)(cid:17)(cid:7)(cid:16)(cid:15) (cid:10)(cid:14)(cid:13)(cid:11) (cid:5)(cid:9)(cid:19)(cid:6)(cid:15) (cid:3)(cid:12)(cid:15)(cid:16)(cid:14)(cid:17)(cid:11)(cid:9)(cid:12)(cid:16)(cid:15) PCM1870 SLAS544A–MAY2007–REVISEDSEPTEMBER2007 16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier FEATURES • Package: 1 • AnalogFrontEnd: – 24-QFN(4 mm· 5mm) – StereoSingleEndInputWith MUX – 24-DSBGA(2.49mm· 3.49 mm) – Mono DifferentialInput • OperationTemperatureRange:–40(cid:176) Cto85(cid:176) C – StereoProgrammableGain Amplifier APPLICATIONS – MicrophoneBoostAmplifierand Bias • PortableAudioPlayer, CellularPhone • AnalogPerformancesDynamicRange:90dB • VideoCamcorder,MovieDigital Still Camera • Power-SupplyVoltage • PMP/DMB,VoiceRecorder – 1.71Vto3.6Vfor DigitalI/OSection – 1.71Vto3.6Vfor DigitalCoreSection DESCRIPTION – 2.4Vto3.6Vfor AnalogSection The PCM1870 is a low-power stereo ADC designed • LowPowerDissipation: for portable digital audio applications, with line-input – 13mWinRecord,1.8/2.4V,48kHz,Stereo amplifier, boost amplifier, microphone bias, programmable gain control, sound effects, and auto – 5.3mWin Record,1.8/2.4V, 8kHz,Mono level control (ALC). It is available in 24-QFN (4-mm · – 3.3μWinAllPower Down 5-mm) and 24-DSBGA (2.49-mm · 3.49-mm) • SamplingFrequency:5kHzto50kHz packages to save footprint. The PCM1870 accepts • AutoLevelControlfor Recording right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and encoder • OperationbySingleClockInputWithoutPLL chips. Sampling rates up to 50 kHz are supported. • SystemClock:Common AudioClock The user-programmable functions are accessible (256f /384f ),12/24,13/26,13.5/27,19.2/38.4, througha2-or3-wire serialcontrol port. S S 19.68/39.36MHz • 2(I2C)or3(SPI)WireSerialControl • ProgrammableFunctionbyRegisterControl: – DigitalSoftMute – Power Up/DownControlfor Each Module – 30-dBto–12-dBGainforAnalog Inputs – 0/12/20-dBBoostforMicrophoneInput – Parameter Settingsfor ALC – Three-Band ToneControland3DSound – High-Pass Filterand Two-StageNotchFilter • PopNoiseReductionCircuit 1 Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet. PRODUCTIONDATAinformationiscurrentasofpublicationdate. Copyright©2007,TexasInstrumentsIncorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarilyincludetestingofallparameters. PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage. ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precisionintegratedcircuitsmaybemore susceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications. ABSOLUTE MAXIMUM RATINGS overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1) PCM1870 UNIT V ,V ,V Supplyvoltage –0.3to4 V DD IO CC Groundvoltagedifferences:DGND,AGND,PGND ±0.1 V Inputvoltage –0.3to4 V Inputcurrent(anypinsexceptsupplies) ±10 mA Ambienttemperatureunderbias –40to110 (cid:176) C Storagetemperature –55to150 (cid:176) C Junctiontemperature 150 (cid:176) C Leadtemperature(soldering) 260/5 (cid:176) C/s Packagetemperature(reflow,peak) 260 (cid:176) C (1) Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratings only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindictedunderrecommendedoperating conditionsisnotimpled.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliabiltiy. RECOMMENDED OPERATING CONDITIONS MIN NOM MAX UNIT V Analogsupplyvoltage 2.4 3.3 3.6 V CC V ,V Digitalsupplyvoltage 1.71 3.3 3.6 V DD IO Digitalinputlogicfamily CMOS SCKIsystemclock 3.072 18.432 MHz Digitalinputclockfrequency LRCKsamplingclock 8 48 kHz Digitaloutputloadcapacitance 10 pF T Operatingfree-airtemperature –40 85 (cid:176) C A 2 SubmitDocumentationFeedback Copyright©2007,TexasInstrumentsIncorporated ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 ELECTRICAL CHARACTERISTICS AllspecificationsatT =25(cid:176) C,V =V =V =V =3.3V,f =48kHz,systemclock=256f ,and16-bitdata,unless A DD IO CC PA S S otherwisenoted PCM1870RHF,PCM1870YZF PARAMETER TESTCONDITIONS UNIT MIN TYP MAX AUDIODATA DataFormat Resolution 16 Bits Audiodatainterfaceformat I2S,left-,right-justified,DSP Audiodatabitlength 16 Bits Audiodataformat MSB-first,2s-complement f Samplingfrequency 5 50 kHz S V <2V 27 DD Systemclock MHz V >2V 40 DD DIGITALINPUT/OUTPUT Logicfamily CMOScompatible V 0.7V IH IO Inputlogiclevel VDC V 0.3V IL IO I V =3.3V 10 IH IN Inputlogiccurrent μA I V =0V –10 IL IN V I =–2mA 0.75V OH OH IO Outputlogiclevel VDC V I =2mA 0.25V OL OL IO LINEINPUTTODIGITALOUTPUTTHROUGHADC(AIN1L/R,AIN2L/RANDPGINL/R—ALC=OFF,PG1=PG2=PG3=PG4=0dB DynamicPerformance 2.828 Vp-p Full-scaleinputvoltage 0dB 1 Vrms Dynamicrange EIAJ,A-weighted 90 dB SNR Signal-to-noiseratio EIAJ,A-weighted 83 90 dB Channelseparation 87 dB THD+N Totalharmonicdistortion+noise –1dB 0.009% 0.017% AnalogInput Centervoltage 0.5V V CC AIN1L,AIN1R,AIN2L,andAIN2R 10 20 Inputimpedance PGINLandPGINR,PG3=PG4=–12dB 70 142 kΩ PGINLandPGINR,PG3=PG4=30dB 4.7 9.5 ANALOGOUTPUTS(AOLANDAOR) Centervoltage 0.5V V CC Loadresistance 10 kΩ Loadcapacitance 20 pF MICROPHONEBIAS—ALC=OFF,PG1=PG2=PG3=PG4=0dB Biasvoltage 0.75V V CC Biassourcecurrent 2 mA Outputnoise 6.5 μV Copyright©2007,TexasInstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 ELECTRICAL CHARACTERISTICS (continued) AllspecificationsatT =25(cid:176) C,V =V =V =V =3.3V,f =48kHz,systemclock=256f ,and16-bitdata,unless A DD IO CC PA S S otherwisenoted PCM1870RHF,PCM1870YZF PARAMETER TESTCONDITIONS UNIT MIN TYP MAX FILTERCHARACTERISTICS DecimationFilterforADC Passband 0.408f S Stopband 0.591f S Pass-bandripple ±0.02 dB Stop-bandattenuation f<3.268f –60 dB S Groupdelay 17/f s S High-PassFilterforADC –3dB 3.74 Frequencyresponse(f =4Hz) –0.5dB 10.66 Hz c –0.1dB 24.20 –3dB 118.77 Frequencyresponse(f =120Hz) –0.5dB 321.75 Hz c –0.1dB 605.52 –3dB 235.68 Frequencyresponse(f =240Hz) –0.5dB 609.95 Hz c –0.1dB 2601.2 POWERSUPPLYANDSUPPLYCURRENT V V 1.71 3.3 3.6 IO IO V Voltagerange V 1.71 3.3 3.6 VDC DD DD V V 2.4 3.3 3.6 CC CC BPZinput,allactive,noload 8 12 mA Supplycurrent Allinputsareheldstatic. 1 10 μA BPZinput 26.4 39.6 mW Powerdissipation Allinputsareheldstatic. 3.3 33 μW TEMPERATURECONDITION Operationtemperature –40 85 (cid:176) C θ Thermalresistance 35 (cid:176) C/W JA 4 SubmitDocumentationFeedback Copyright©2007,TexasInstrumentsIncorporated ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 PIN ASSIGNMENTS RHF Package YZF Package (Top View) (Top View) AGND VCC MICB AIN1L AIN1R A AIN1R AIN1L MICB V COM 24 23 22 21 20 B V 1 19 PGINL COM PGINR PGINL V AGND CC AIN2R 2 18 AOL C AIN2L 3 17 PGINR AOR AOL AIN2R AIN2L MODE 4 16 AOR D MS/ADR 5 15 TEST TEST MODE MS/ADRMD/SDA MD/SDA 6 14 LRCK E MC/SCL 7 13 BCK LRCK DGND VIO MC/SCL 8 9 10 11 12 F BCK SCKI V DOUT DD UT VIO VDD ND CKI 1 2 3 4 O G S D D P0057-01 Table1. TERMINALFUNCTIONS TERMINAL NO. I/O DESCRIPTION NAME RHF YZF AGND 24 B4 – Groundforanalog AIN1L 21 A2 I Analoginput1forL-channel AIN1R 20 A1 I Analoginput1forR-channel AIN2L 3 C4 I Analoginput2forL-channel AIN2R 2 C3 I Analoginput2forR-channel AOL 18 C2 O MicrophoneamplifieroutputforL-channel AOR 16 C1 O MicrophoneamplifieroutputforR-channel BCK 13 F1 I/O Serialbitclock DGND 11 E2 – Groundfordigital DOUT 8 F4 O Serialaudiodataoutput LRCK 14 E1 I/O Left-andright-channelclock MC/SCL 7 E4 I Modecontrolclockfor3-wire/2-wireinterface MD/SDA 6 D4 I/O Modecontroldatafor3-wire/2-wireinterface MICB 22 A3 O Microphonebiassourceoutput MODE 4 D2 I 2-or3-wireinterfaceselection(LOW:SPI,HIGH:I2C) MS/ADR 5 D3 I Modecontrolselectfor3-wire/2-wireinterface PGINL 19 B2 I AnaloginputtogainamplifierforL-channel PGINR 17 B1 I AnaloginputtogainamplifierforR-channel SCKI 12 F2 I Systemclock TEST 15 D1 I TestPin.Shouldbeconnectedtoground. V 23 B3 – Powersupplyforanalog CC V 1 A4 – Commonvoltageforanalog COM V 10 F3 – Powersupplyfordigitalcore DD V 9 E3 – PowersupplyfordigitalI/O IO Copyright©2007,TexasInstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 FUNCTIONALBLOCKDIAGRAM MD/SDA MC/SCL MS/ADR MODE AOL PGINL TEST SCKI DOUT BCK LRCK 2 Clock SerialInterface(SPI/IC) Manager AudioInterface Mute PG1 ATR AIN2L MUX1 3MUX AIN1L 0/+12/+20 dB ADL PG3 DS Digital D2S +30 to–12 dB ADC Filter ADR PG4 +30 to–12 dB DS Digital ADC Filter AIN1R 2 PG2 X 4 U X M U AIN2R M MCB 0/+12/+20 dB ModuleThatCanBePoweredUp/Down MicBias MICB PowerOn PowerUp/Down CCOOMM Reset Manager V V COM COM AOR PGINR V V DGND V AGND IO DD CC B0231-01 6 SubmitDocumentationFeedback Copyright©2007,TexasInstrumentsIncorporated ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 TYPICAL PERFORMANCE CURVES AllspecificationsatT =25(cid:176) C,V =V =V =V =3.3V,f =8kHzto48kHz,systemclock=256f and16-bitdata, A DD IO CC PA S S unlessotherwisenoted. DECIMATIONFILTER,STOP-BAND DECIMATIONFILTER,PASS-BAND 0 0.2 –20 0.1 –40 B B d d – – e e d –60 d 0 u u plit plit m m A –80 A –0.1 –100 –120 –0.2 0 1 2 3 4 0 0.1 0.2 0.3 0.4 0.5 Frequency[´f ] Frequency[´f ] S S G001 G002 Figure1. Figure2. HIGH-PASSFILTERPASS-BANDCHARACTERISTICS HIGH-PASSFILTERPASS-BANDCHARACTERISTICS (f =4Hzat48kHz) (f =120Hzat48kHz) C C 5 5 0 0 B B d –5 d –5 – – e e d d u u plit plit m –10 m –10 A A –15 –15 –20 –20 0 0.0005 0.001 0.0015 0.002 0 0.005 0.01 0.015 0.02 Frequency[´f ] Frequency[´f ] S S G003 G012 Figure3. Figure4. Copyright©2007,TexasInstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 TYPICAL PERFORMANCE CURVES (continued) AllspecificationsatT =25(cid:176) C,V =V =V =V =3.3V,f =8kHzto48kHz,systemclock=256f and16-bitdata, A DD IO CC PA S S unlessotherwisenoted. HIGH-PASSFILTERPASS-BANDCHARACTERISTICS (f =240Hzat48kHz) C 5 0 B d –5 – e d u plit m –10 A –15 –20 0 0.01 0.02 0.03 0.04 Frequency[´f ] S G004 Figure5. 8 SubmitDocumentationFeedback Copyright©2007,TexasInstrumentsIncorporated ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 TYPICAL PERFORMANCE CURVES (continued) AllspecificationsatT =25(cid:176) C,V =V =V =V =3.3V,f =44.1kHz,systemclock=256f and16-bitdata,unless A DD IO CC PA S S otherwisenoted. 3BANDTONECONTROL(BASS,MID,TREBLE) 3BANDTONECONTROL(BASS) 15 15 10 10 5 5 B B d d – – e e d 0 d 0 u u plit plit m m A –5 A –5 –10 –10 –15 –15 0.01 0.1 1 10 100 1k 10k 100k 0 200 400 600 800 1k Frequency–Hz Frequency–Hz G005 G006 Figure6. Figure7. 3BANDTONECONTROL(MID) 3BANDTONECONTROL(TREBLE) 15 15 10 10 5 5 B B d d – – e e d 0 d 0 u u plit plit m m A –5 A –5 –10 –10 –15 –15 0 1k 2k 3k 4k 5k 2k 4k 6k 8k 10k 12k 14k Frequency–Hz Frequency–Hz G007 G008 Figure8. Figure9. Copyright©2007,TexasInstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLink(s):PCM1870 PCM1870 www.ti.com SLAS544A–MAY2007–REVISEDSEPTEMBER2007 TYPICAL PERFORMANCE CURVES (continued) AllspecificationsatT =25(cid:176) C,V =V =V =V =3.3V,f =48kHz,systemclock=256f and16-bitdata,unless A DD IO CC PA S S otherwisenoted. ADCSNRATHIGHGAIN(PG1/PG2=0dB) ADCSNRATHIGHGAIN(PG1/PG2=20dB) 100 90 85 f =1kHz IN 90 80 SingleInput 75 85 SingleInput B B 70 d DifferentialInput d – 70 – 65 R R N N S S 60 60 DifferentialInput 55 50 50 f =1kHz 45 IN 40 40 0 5 10 15 20 25 30 0 5 10 15 20 25 30 PG3/PG4Gain–dB PG3/PG4Gain–dB G009 G010 Figure10. Figure11. THD+N/SNRvsPOWERSUPPLY (ADCTODIGITALOUTPUT) 0.012 92 f =1kHz IN 0.011 91 THD+N %0.010 90 B – d N – + R D N TH0.009 89 S SNR 0.008 88 0.007 87 2 2.5 3 3.5 4 PowerSupply–V G011 Figure12. 10 SubmitDocumentationFeedback Copyright©2007,TexasInstrumentsIncorporated ProductFolderLink(s):PCM1870

Description:
16-Bit Low-Power Stereo Audio ADC With Microphone Bias and semiconductor products and disclaimers thereto appears at the end of this data .. The level should return to that recorded in the register data when system was last.
See more

The list of books you might like

Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.