Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsPCM2906BDBR

Burr-BrownAudio

FEATURES

APPLICATIONS

DESCRIPTION

PCM2906B

www.ti.com

...........................................................................................................................................................................................SLES227–DECEMBER2008

STEREOAUDIOCODECWITHUSBINTERFACE,SINGLE-ENDEDANALOG

INPUT/OUTPUT,ANDS/PDIF

•StereoDAC:

234

•On-ChipUSBInterface:–AnalogPerformanceatV

BUS

=5V:

–WithFull-SpeedTransceivers–THD+N=0.005%

–FullyCompliantwithUSB2.0Specification–SNR=96dB

–CertifiedbyUSB-IF–DynamicRange=93dB

–PartiallyProgrammableDescriptors

(1)

–OversamplingDigitalFilter:

–USBAdaptiveModeforPlayback–PassbandRipple=±0.1dB

–USBAsynchronousModeforRecord–Stop-BandAttenuation=–43dB

–BusPowered–Single-EndedVoltageOutput

•16-BitDelta-SigmaADCandDAC–AnalogLPFIncluded

•SamplingRate:•Multifunctions:

–DAC:32,44.1,48kHz–HumanInterfaceDevice(HID)Function:

–ADC:8,11.025,16,22.05,32,44.1,48kHz–VolumeandMuteControls

•On-ChipClockGeneratorwithSingle12-MHz–SuspendFlagFunction

ClockSource

•28-PinSSOPPackage

•S/PDIFInput/Output

•SinglePowerSupply:

•USBAudioSpeaker

–5VTypical(V

BUS

)

•USBHeadset

•StereoADC:

•USBMonitor

–AnalogPerformanceatV

BUS

=5V:

•USBAudioInterfaceBox

–THD+N=0.01%

–SNR=89dB

–DynamicRange=89dB

ThePCM2906BisTexasInstruments'single-chip,

–DecimationDigitalFilter:

USB,stereoaudiocodecwithaUSB-compliant

full-speedprotocolcontrollerandS/PDIF.TheUSB

–PassbandRipple=±0.05dB

protocolcontrollerrequiresnosoftwarecode,butthe

–Stop-BandAttenuation=–65dB

USBdescriptorscanbemodifiedinsomeareas(for

–Single-EndedVoltageInput

example,vendorIDand/orproductID).The

PCM2906BemploysSpAct™architecture,TI's

–AntialiasingFilterIncluded

uniquesystemthatrecoverstheaudioclockfrom

–DigitalHPFIncluded

USBpacketdata.On-chipanalogPLLswithSpAct

enableplaybackandrecordwithlowclockjitteras

wellasindependentplaybackandrecordsampling

(1)Thedescriptorcanbemodifiedbychangingamask.rates.

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas

Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2SpActisatrademarkofTexasInstruments.

3SystemTwo,AudioPrecisionaretrademarksofAudioPrecision,Inc.

4Allothertrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Not Recommended for New Designs

Summary of content (30 pages)

PAGE 1
Not Recommended for New Designs PCM2906B Burr-Brown Audio www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE-ENDED ANALOG INPUT/OUTPUT, AND S/PDIF FEATURES 1 • On-Chip USB Interface: – With Full-Speed Transceivers – Fully Compliant with USB 2.
PAGE 2
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
PAGE 3
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 ELECTRICAL CHARACTERISTICS All specifications at TA = +25°C, VBUS, = 5 V, fS = 44.1 kHz, fIN = 1 kHz, and 16-bit data (unless otherwise noted).
PAGE 4
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = +25°C, VBUS, = 5 V, fS = 44.1 kHz, fIN = 1 kHz, and 16-bit data (unless otherwise noted).
PAGE 5
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = +25°C, VBUS, = 5 V, fS = 44.1 kHz, fIN = 1 kHz, and 16-bit data (unless otherwise noted).
PAGE 6
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.
PAGE 7
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 FUNCTIONAL BLOCK DIAGRAM VCCCI VCCP1I VCCP2I VCCXI VDDI AGNDC AGNDP AGNDX DGND DGNDU 5-V to 3.
PAGE 8
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com BLOCK DIAGRAM OF ANALOG FRONT-END (RIGHT CHANNEL) 4.
PAGE 9
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 TYPICAL CHARACTERISTICS: ADC All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, using REG103xA-A, unless otherwise noted.
PAGE 10
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: ADC (continued) All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, using REG103xA-A, unless otherwise noted.
PAGE 11
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 TYPICAL CHARACTERISTICS: DAC (continued) All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, using REG103xA-A, unless otherwise noted.
PAGE 12
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: SUPPLY CURRENT All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, using REG103xA-A, unless otherwise noted.
PAGE 13
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 TYPICAL CHARACTERISTICS: ADC DIGITAL DECIMATION FILTER FREQUENCY RESPONSE All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted.
PAGE 14
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: ADC DIGITAL HIGH-PASS FILTER FREQUENCY RESPONSE All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted. STOP-BAND CHARACTERISTICS PASSBAND CHARACTERISTICS 0 0.
PAGE 15
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 TYPICAL CHARACTERISTICS: DAC DIGITAL INTERPOLATION FILTER FREQUENCY RESPONSE All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted. STOP-BAND ATTENUATION PASSBAND RIPPLE 0 0.
PAGE 16
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: DAC ANALOG FIR FILTER FREQUENCY RESPONSE All specifications at TA = +25°C, VBUS = 5 V, fs = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted. PASSBAND CHARACTERISTICS 0.2 −10 0.
PAGE 17
Not Recommended for New Designs PCM2906B www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 DETAILED DESCRIPTION USB INTERFACE Control data and audio data are transferred to the PCM2906B via D+ (pin 1) and D– (pin 2). All data to/from the PCM2906B are transferred at full speed.
PAGE 18
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com DEVICE CONFIGURATION Figure 31 illustrates the USB audio function topology. The PCM2906B has four interfaces. Each interface consists of alternative settings.
PAGE 19
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 Interface #0 Interface #0 is the control interface. Alternative setting #0 is the only possible setting for interface #0. Alternative setting #0 describes the standard audio control interface.
PAGE 20
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com Interface #2 Interface #2 is the audio streaming data-in interface. Interface #2 has the 19 alternative settings listed in Table 6. Alternative setting #0 is the zero-bandwidth setting. All other alternative settings are operational settings.
PAGE 21
Not Recommended for New Designs PCM2906B www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 Clock and Reset The PCM2906B requires a 12-MHz (±500 ppm) clock for the USB and audio functions. The clock can be generated by a built-in oscillator with a 12-MHz crystal resonator.
PAGE 22
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com INTERFACE SEQUENCE Power-On, Attach, and Playback Sequence The PCM2906B is ready for setup when the reset sequence has finished and the USB device is attached.
PAGE 23
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 Record Sequence The PCM2906B starts audio capture into the internal memory after receiving the SET_INTERFACE command, as shown in Figure 34.
PAGE 24
PCM2906B Not Recommended for New Designs SLES227 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com APPLICATION INFORMATION TYPICAL CIRCUIT CONNECTION 1 Figure 36 illustrates a typical circuit connection for a simple application. The circuit illustrated is for information only.
PAGE 25
PCM2906B Not Recommended for New Designs www.ti.com ........................................................................................................................................................................................... SLES227 – DECEMBER 2008 TYPICAL CIRCUIT CONNECTION 2 Figure 37 illustrates a typical circuit connection for a simple application. The circuit illustrated is for information only.
PAGE 26
PACKAGE OPTION ADDENDUM www.ti.
PAGE 27
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device PCM2906BDBR Package Package Pins Type Drawing SSOP DB 28 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 8.2 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 10.5 2.5 12.0 16.
PAGE 28
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) PCM2906BDBR SSOP DB 28 2000 367.0 367.0 38.
PAGE 29
MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters.
PAGE 30
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.