16-Bit Low Power Stereo Audio CODEC w/Microphone Bias Headphone Digit Speakr Amp

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PCM3793A
PCM3794A
SLAS529A–JANUARY2007–REVISEDFEBRUARY2007
16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital
Speaker Amplifier
FEATURES • 2(I2C)or3(SPI) WireSerial Control
• AnalogFrontEnd: • ProgrammableFunctionbyRegisterControl:
– Stereo Single-Ended InputWithMultiplexer – DigitalAttenuationofDAC:0dBto–62 dB
– MonoDifferentialInput – DigitalGainofDAC:0, 6,12, 18dB
– Stereo ProgrammableGainAmplifier – PowerUp/DownControl forEachModule
– MicrophoneAmplifier(20 dB)and Bias – 6-dBto –70-dBGainforAnalogOutputs
• AnalogBackEnd: – 30-dBto–12-dBGainforAnalogInputs
– Stereo/MonoLineOutputWithVolume – 0/20dBSelectableforMicrophoneInput
– Stereo/MonoHeadphoneAmplifier With – 0-dBto –21-dBGainforAnalogMixing
VolumeandCaplessMode – Parameter SettingsforALC
– Stereo/MonoDigitalSpeakerAmplifier – Three-BandToneControl and3DSound
(BTL) WithVolume
– High-PassFilter: 4-, 120-,240-Hz
• AnalogPerformance:
– Two-StageProgrammableNotchFilter
– DynamicRange:93dB(DAC)
– AnalogMixingControl
– DynamicRange:90dB(ADC) • Pop-NoiseReductionCircuit
– 40-mW+40-mWHeadphoneOutputat • ShortandThermalProtectionCircuit
R =16W
L • Package:5-mm· 5-mm QFNPacakge
– 700-mW+700-mWSpeakerOutputat
R =8W • OperationTemperatureRange: –40(cid:176) Cto85(cid:176) C
L
• PowerSupplyVoltage
APPLICATIONS
– 1.71Vto3.6Vfor DigitalI/OSection • PortableAudioPlayer, CellularPhone
– 1.71Vto3.6Vfor DigitalCoreSection • VideoCamcorder,Digital Movie/Still Camera
– 2.4Vto3.6Vfor AnalogSection • PMP/DMB
– 2.4Vto3.6Vfor PowerAmplifierSection
• LowPowerDissipation: DESCRIPTION
– 7mWinPlayback,1.8V/2.4V, 48kHz The PCM3793A/94A is a low-power stereo CODEC
designed for portable digital audio applications. The
– 13mWinRecord,1.8V/2.4V, 48kHz
device integrates stereo digital speaker amplifier,
– 3.3m W inPowerDown
headphone amplifier, line amplifier, line input, boost
• SamplingFrequency:5kHzto50kHz amplifier, microphone bias, programmable gain
• AutomaticLevelControl forRecording control, analog mixing, sound effects, and automatic
level control (ALC). It is available in a small-footprint,
• OperationFrom aSingle ClockInputWithout 5-mm · 5-mm QFN package. The PCM3793A/94A
PLL supports right-justified, left-justified, I2S, and DSP
• SystemClock: formats, providing easy interfacing to audio DSP and
decoder/encoder chips. Sampling rates up to 50 kHz
– Common-AudioClock(256f /384f ),12/24,
S S
are supported. The user-programmable functions are
13/26,13.5/27,19.2/38.4,19.68/39.36MHz
accessible through a two- or three-wire serial control
• HeadphonePlugInsertDetection
port.
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate. Copyright©2007,TexasInstrumentsIncorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarilyincludetestingofallparameters.
PCM3793A
PCM3794A
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SLAS529A–JANUARY2007–REVISEDFEBRUARY2007
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.
ABSOLUTE MAXIMUM RATINGS
overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1)
MAX UNIT
Supplyvoltage V ,V ,V ,V –0.3to4 V
DD IO CC PA
Groundvoltagedifferences:DGND,AGND,PGND – 0.1 V
Inputvoltage –0.3to4 V
Inputcurrent(anypinsexceptsuppliesandSPKout) ±10 mA
Ambienttemperatureunderbias –40to110 (cid:176) C
Storagetemperature –55to150 (cid:176) C
Junctiontemperature 150 (cid:176) C
Leadtemperature(soldering) 260 (cid:176) C,5s
Packagetemperature(reflow,peak) 260 (cid:176) C
(1) Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperating
conditionsisnotimplied.Exposuretoabsolute–maximum–ratedconditionsforextendedperiodsmayaffectdevicereliability.
RECOMMENDED OPERATING CONDITIONS
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
MIN NOM MAX UNIT
V ,V Analogsupplyvoltage 2.4 3.3 3.6 V
CC PA
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
LOLandLOR 10 kW
Analogoutputloadresistance HPOLandHPOR 16 W
SPOLP,SPOLN,SPORPandSPORN 8 W
Analogoutputloadcapacitance 30 pF
Digitaloutputloadcapacitance 10 pF
T Operatingfree-airtemperature –40 85 (cid:176) C
A
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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).
PCM3793ARHB,PCM3794ARHB
PARAMETER TESTCONDITIONS UNIT
MIN TYP MAX
AudioDataCharacteristics
DATAFORMAT
Resolution 16 Bits
I2S,left-,
right-
Audiodatainterfaceformat
justified,
DSP
Audiodatabitlength 16 Bits
MSBfirst,
Audiodataformat 2s
complement
Samplingfrequency(f ) 5 50 kHz
S
V <2V 27
DD
Systemclock MHz
V >2V 40
DD
DigitalInput/Output
CMOS
Logicfamily
compatible
V 0.7V
IH IO
Inputlogiclevel VDC
V 0.3V
IL IO
I V =3.3V 10
IH Inputlogiccurrent IN m A
I V =0V –10
IL IN
V I =–2mA 0.75V
OH OH IO
Outputlogiclevel VDC
V I =2mA 0.25V
OL OL IO
DigitalInputtoLineOutputThroughDAC(LOL,LOR,andMONO)
R =10kW ,ALC=OFF,volume=0dB,speaker=powereddown,analogmixing=disabled
L
DYNAMICPERFORMANCE
2.828 Vp-p
Full-scaleoutputvoltage 0dB
1 Vrms
Dynamicrange EIAJ,A-weighted 93 dB
SNR Signal-to-noiseratio EIAJ,A-weighted 86 93 dB
Channelseparation 91 dB
THD+N Totalharmonicdistortion+noise 0dB 0.008%
Loadresistance 10 kW
LineInputtoLineOutputThroughMixingPath(LOL,LOR,andMONO)
R =10kW ,ALC=OFF,volume=0dB,speaker=powereddown,analogmixing=enabled
L
DYNAMICPERFORMANCE
Full-scaleinputandoutput 2.828 Vp-p
0dB
voltage 1 Vrms
SNR Signal-to-noiseratio EIAJ,A-weighted 84 93 dB
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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).
PCM3793ARHB,PCM3794ARHB
PARAMETER TESTCONDITIONS UNIT
MIN TYP MAX
DigitalInputtoHeadphoneOutputThroughDAC(HPOLandHPOR)
R =16W or32W ,ALC=OFF,volume=0dB,speaker=powereddown,analogmixing=disabled,notcaplessmode
L
DYNAMICPERFORMANCE
2.828 Vp-p
Full-scaleoutputvoltage 0dB
1 Vrms
SNR Signal-to-noiseratio EIAJ,A-weighted 84 93 dB
30mW,R =32W ,volume=0dB 0.1%
L
THD+N Totalharmonicdistortion+noise
40mW,R =16W ,volume=–1dB 0.03%
L
Loadresistance 16 W
200Hz,140mVp-p –40
PSRR Power-supplyrejectionratio 1kHz,140mVp-p –45 dB
20kHz,140mVp-p –32
LineInputtoHeadphoneOutputThroughMixingPath(HPOLandHPOR)
R =16W or32W ,ALC=OFF,volume=0dB,speaker=powereddown,analogmixing=enabled,notcaplessmode
L
DYNAMICPERFORMANCE
2.828 Vp-p
Full-scaleoutputvoltage 0dB
1 Vrms
SNR Signal-to-noiseratio EIAJ,A-weighted 84 93 dB
Loadresistance 16 W
DigitalInputtoSpeakerOutputThroughDAC(SPOLP,SPOLN,SPORP,andSPORN):PCM3793A
R =8W ,ALC=OFF,volume=0dB,headphone=powereddown,analogmixing=disabled
L
DYNAMICPERFORMANCE
2.52 Vp-p
Full-scaleoutputvoltage 0dB
0.9 Vrms
SNR Signal-to-noiseratio EIAJ,A-weighted 84 93 dB
THD+N Totalharmonicdistortion+noise 400mW,R =8W ,volume=0dB 0.3%
L
Loadresistance 8 W
200Hz,140mVp-p –50
PSRR Power-supplyrejectionratio 1kHz,140mVp-p –45 dB
20kHz,140mVp-p –25
LineInputtoSpeakerOutputThroughMixingPath(SPOLP,SPOLN,SPORP,andSPORN):PCM3793A
R =8W ,ALC=OFF,volume=0dB,headphone=powereddown,analogmixing=enabled
L
DYNAMICPERFORMANCE
2.52 Vp-p
Full-scaleoutputvoltage 0dB
0.9 Vrms
SNR Signal-to-noiseratio EIAJ,A-Weighted 84 93 dB
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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).
PCM3793ARHB,PCM3794ARHB
PARAMETER TESTCONDITIONS UNIT
MIN TYP MAX
LineInputtoDigitalOutputThroughADC(AIN1L/R,AIN2L/R,AIN3L,andAIN3L/R)
ALC=OFF,microphoneboost=0dB,PGA=0dB,speakerandheadphone=powereddown,analogmixing=disabled
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%
ANALOGINPUT
Centervoltage 0.5V V
CC
Inputimpedance 10 20 kW
MicrophoneBias
ALC=OFF,microphoneboost=0dB,PGA=0dB,speakerandheadphone=powereddown,analogmixing=disabled
Biasvoltage 0.75V V
CC
Biassourcecurrent 2 mA
Outputnoise 6.5 m V
FilterCharacteristics
INTERPOLATIONFILTERFORDAC
Passband 0.454f
S
Stopband 0.546f
S
Pass-bandripple – 0.04 dB
Stop-bandattenuation –50 dB
Groupdelay 19/f s
s
De-emphasiserror – 0.1 dB
ANALOGFILTERFORDAC
Frequencyresponse f=20kHz – 0.2 dB
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,f =4Hz 3.74
c
–0.5dB,f =4Hz 10.66
c
–0.1dB,f =4Hz 24.2
c
Frequencyresponse Hz
–3dB,f =240Hz 235.68
c
–0.5dB,f =240Hz 609.95
c
–0.1dB,f =240Hz 2601.2
c
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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).
PCM3793ARHB,PCM3794ARHB
PARAMETER TESTCONDITIONS UNIT
MIN TYP MAX
PowerSupplyandSupplyCurrent
V 1.71 3.3 3.6
IO
V 1.71 3.3 3.6
DD
Voltagerange VDC
V 2.4 3.3 3.6
CC
V 2.4 3.3 3.6
PA
BPZinput,allactive,noload 24.3 35 mA
Supplycurrent
Allinputsareheldstatic 1 10 m A
BPZinput 80.2 115.5 mW
Powerdissipation
Allinputsareheldstatic 3.3 33 m W
TemperatureCondition
Operationtemperature –40 85 (cid:176) C
q Thermalresistance 30 (cid:176) C/W
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PIN ASSIGNMENTS
PCM3793ARHB
(TOPVIEW)
L
O
L
AIN2R AIN3L AIN3R MICB VCC AGND VCOM HPOL/
24 23 22 21 20 19 18 17
AIN2L 25 16 HPOR/LOR
AIN1R 26 15 SPOLP
AIN1L 27 14 SPOLN
MODE 28 13 PGND
MS/ADR 29 12 V
PA
MD/SDA 30 11 SPORP
MC/SCL 31 10 SPORN
LRCK 32 9 HPCOM/MONO
1 2 3 4 5 6 7 8
BCK DIN OUT VIO VDD GND SCKI HDTI
D D
P0048-05
PCM3794ARHB
(TOPVIEW)
L
O
L
AIN2R AIN3L AIN3R MICB VCC AGND VCOM HPOL/
24 23 22 21 20 19 18 17
AIN2L 25 16 HPOR/LOR
AIN1R 26 15 NC
AIN1L 27 14 NC
MODE 28 13 PGND
MS/ADR 29 12 V
PA
MD/SDA 30 11 NC
MC/SCL 31 10 NC
LRCK 32 9 HPCOM/MONO
1 2 3 4 5 6 7 8
BCK DIN OUT VIO VDD GND SCKI HDTI
D D
P0048-06
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Table1. TERMINALFUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME PCM3793ARHB PCM3794ARHB
AGND 19 19 – Groundforanalog
AIN1L 27 27 I Analoginput1forL-channel
AIN1R 26 26 I Analoginput1forR-channel
AIN2L 25 25 I Analoginput2forL-channel
AIN2R 24 24 I Analoginput2forR-channel
AIN3L 23 23 I Analoginput3forL-channel
AIN3R 22 22 I Analoginput3forR-channel
BCK 1 1 I/O Serialbitclock
DGND 6 6 – Digitalground
DIN 2 2 I Serialaudiodatainput
DOUT 3 3 O Serialaudiodataoutput
HDTI 8 8 I Headphonepluginsertiondetection
HPCOM/MONO 9 9 O Headphonecommon/monolineoutput
HPOL/LOL 17 17 O Headphone/lineoutforR-channel
HPOR/LOR 16 16 O Headphone/lineoutforL-channel
LRCK 32 32 I/O Leftandrightchannelclock
MC/SCL 31 31 I Modecontrolclockforthree-wire/two-wireinterface
MD/SDA 30 30 I/O Modecontroldataforthree-wire/two-wireinterface
MICB 21 21 O Microphonebiassourceoutput
MODE 28 28 I Two-orthree-wireinterfaceselection(LOW:SPI,HIGH:I2C)
MS/ADR 29 29 I Modecontrolselectforthree-wire/two-wireinterface
PGND 13 13 – Groundforspeakerpoweramplifier
SCKI 7 7 I Systemclock
SPOLN 14 – O SpeakeroutputL-channelfornegative(PCM3793A)
SPOLP 15 – O SpeakeroutputL-channelforpositive(PCM3793A)
SPORN 10 – O SpeakeroutputR-channelfornegative(PCM3793A)
SPORP 11 – O SpeakeroutputR-channelforpositive(PCM3793A)
V 20 20 – Analogpowersupply
CC
V 18 18 – Analogcommonvoltage
COM
V 5 5 – Powersupplyfordigitalcore
DD
V 4 4 – PowersupplyfordigitalI/O
IO
V 12 12 – Powersupplyforpoweramplifier
PA
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FUNCTIONAL BLOCK DIAGRAM
n Output SPOLPSPOLN SPORPSPORN HPOL/LOL HPOR/LOR HPCOM/MONO HDTI B0181-02
w
o er
sibleforPowerUp/D M3794hasnoSpeak SPL +6 to–70 dB SPR +6 to–70 dB HPL +6 to–70 dB HPR +6 to–70 dB HPC
os C
P P
ODE LOUT MONO ROUT MONO COM HPOL HPOR
M L R
DR 2PI/IC) MX MX
MS/A e(S W1 W2 3W W6 W5 W4
ac S S S S S S
CL erf
S nt
MMC/D/SDACKDIN aceSerialI DGC0, +6, +12, +18 dB ATP0 to–62 dB, Mute DAL DSDigitalDAC(1)Filter DAR DSDigitalDAC(1)Filter (1)Decimation FilterInterpolation Filter3-D Enhancement3T-Bandone ControlNotch Filter VPAGGNNDDCC
LR nterf VPA
I
K o
C di D
BDOUT Au ATRMute putL-ch ADL Digital(1)Filter ADR Digital(1)Filter nputR-ch VDGNDD
n I
SCKI ClockManager PG5 AnalogI 0 to–21 dB PG3DSADC PG4DSADC PG6 Analog 0 to–21 dB VIO
B B
PowerUp/DownManager PG1 3XUM 0/+20 dB +30 to–12 d +30 to–12 d PG24XUM 0/+20 dB CCOOMM
n B
PowerOReset 1XUM D2S 2XUM MC Bias VCOM
c
Mi
LLL RRR B M
AIN3AIN2AIN1 AIN1AIN2AIN3 MIC VCO
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TYPICAL PERFORMANCE CURVES
AllspecificationsatT =25(cid:176) C,V =V =V =V =3.3V,f =8to48kHz,systemclock=256f ,and16-bitdata,
A DD IO CC PA S S
unlessotherwisenoted.
INTERPOLATIONFILTER,STOPBAND INTERPOLATIONFILTER,PASSBAND
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.
DECIMATIONFILTER,STOPBAND DECIMATIONFILTER,PASSBAND
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
G003 G004
Figure3. Figure4.
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