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PCM2704 Status:ACTIVE

Stereo USB1.1 DAC with line-out and S/PDIF output, Bus/Self-powered (External ROM Interface)

      
         
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Datasheet

Download - PDF Icon
  • Stereo Audio DAC With USB Interface Single-Ended Headphone Output and S/PDIF Out (Rev. E) (pcm2704.pdf, 641 KB)
    31 Oct 2007 Download
  • Updated Operating Environments for PCM270x, PCM290x Applications (slaa374.pdf, 40 KB)
    19 Oct 2007 Download

 PCM2702 PCM2704PCM2705 PCM2706 PCM2707 
# DACs2  2  2  2  2  
Sampling Rate(Max)(kHz)48  48  48  48  48  
Resolution(Bits)16  16  16  16  16  
SNR(Typ)(dB)105  98  98  98  98  
# Inputs / # Outputs0 / 2  0 / 2  0 / 2  0 / 2  0 / 2  
Digital Audio InterfaceUSB  USB  USB  USB, I2S  USB, I2S  
Control Interface HID  HID, SPI  HID, SPI  HID, SPI  
Pd(Typ)(mW)165  175  175  175  175  
Analog Supply(V)4.5 - 5.5  4.35 - 5.25  4.35 - 5.25  4.35 - 5.25  4.35 - 5.25  
Digital Supply (up to 5 V)(V)3 - 3.6  4.35 - 5.25  4.35 - 5.25  4.35 - 5.25  4.35 - 5.25  
Additional Features S/PDIF Output, Ext. ROM I/F, Headphone Output  S/PDIF Output, Headphone Output  S/PDIF Output, Ext. ROM I/F, Headphone Output  S/PDIF Output, Headphone Output  
Operating Temp Range(Celsius) -25 to 85  -25 to 85  -25 to 85  -25 to 85  
Pin/Package28SSOP  28SSOP  28SSOP  32TQFP  32TQFP  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

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  • PCM1796: 24 bit, 192kHz Stereo Audio DAC
  • TPA6111A2: Stereo Headphone Audio Amplifier, Pin Compatible with LM4880 and LM4881
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Product Information

Features

  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant With USB 1.1 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Bus-Powered or Self-Powered Operation
  • Sampling Rate: 32, 44.1, 48 kHz
  • On-Chip Clock Generator With Single 12-MHz Clock Source
  • Single Power Supply:
    • Bus-Powered: 5 V, Typical (VBUS)
    • Self-Powered: 3.3 V, Typical
  • 16-Bit Delta-Sigma Stereo DAC
    • Analog Performance at 5 V (Bus-Powered), 3.3 V (Self-Powered):
      • THD+N: 0.006% RL > 10 k, Self-Powered
      • THD+N: 0.025% RL = 32
      • SNR = 98 dB
      • Dynamic Range: 98 dB
      • PO = 12 mW, RL = 32
    • Oversampling Digital Filter
      • Pass-Band Ripple = ±0.04 dB
      • Stop-Band Attenuation = -50 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multiple Functions:
    • Up to Eight Human Interface Device (HID) Interfaces (Depending on Model and Settings)
    • Suspend Flag
    • S/PDIF Out With SCMS
    • External ROM Interface (PCM2704/6)
    • Serial Programming Interface (PCM2705/7)
    • I2S Interface (Selectable on PCM2706/7)
  • Package:
    • 28-Pin SSOP (PCM2704/5)
    • 32-Pin TQFP (PCM2706/7)
  • APPLICATIONS
    • USB Headphones
    • USB Audio Speaker
    • USB CRT/LCD Monitor
    • USB Audio Interface Box
    • USB-Featured Consumer Audio Product

SpAct is a trademark of Texas Instruments.
System Two, Audio Precision are trademarks of Audio Precision, Inc.

The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details.

Description

The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request(1). The PCM2704/5/6/7 employs SpAct™ architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.

    

Pricing / Packaging / CAD Design Tools / Samples

Price ($US)PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price ($US) | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
PCM2704DBACTIVE-25 to 853.45 | 100uSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
PCM2704DBG4ACTIVE-25 to 853.45 | 100uSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
PCM2704DBRACTIVE-25 to 853.45 | 100uSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
PCM2704DBRG4ACTIVE-25 to 853.45 | 100uSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

  TI Inventory Status Reported Distributor Inventory
PCM2704DBAs of 8:46 AM GMT, 29 Aug 2008As of 8:46 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 5 Dec 16 Weeks AmericasDigiKey 758
  Mouser Electronics 777
  Newark 113
  EuropeAvnet-SILICA 8
PCM2704DBG4As of 8:46 AM GMT, 29 Aug 2008As of 8:46 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 5 Dec 16 Weeks EuropeEBV Elektronik 46
PCM2704DBRAs of 8:46 AM GMT, 29 Aug 2008As of 8:46 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 5 Dec 16 Weeks AmericasDigiKey >1k
  Rochester Electronics >1k
PCM2704DBRG4As of 8:46 AM GMT, 29 Aug 2008As of 8:46 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 5 Dec 16 Weeks None Reported
View Distributors		   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
PCM2704DB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM2704DBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM2704DBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM2704DBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

  • Stereo Audio DAC With USB Interface Single-Ended Headphone Output and S/PDIF Out (Rev. E) (pcm2704.pdf, 641 KB)
    31 Oct 2007 Download
  • Updated Operating Environments for PCM270x, PCM290x Applications (slaa374.pdf, 40 KB)
    19 Oct 2007 Download

Application Notes

  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
    04 Oct 2000 Abstract
  • Dyamic Performance Testing of Digital Audio D/A Converters (sbaa055.htm, 8 KB)
    02 Oct 2000 Abstract

User Guides

  • DEM-PCM2704/2705 EVM (Rev. A) (sleu049a.pdf, 661 KB)
    08 Feb 2008 Download

Simulation Models

  • IBIS Model
    • PCM2704db IBIS Model (slac200.ibs, 224 KB)
      11 Aug 2008 ibis
      • | zip
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PCM179624 bit, 192kHz Stereo Audio DACTI customers also evaluated this product.
PCM2705Stereo USB1.1 DAC with line-out and S/PDIF output, Bus/Self-powered (S/W Control)TI customers also evaluated this product.
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