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DSD1791 Status: ACTIVE

113dB SNR Stereo Audio DAC (H/W Control)


      
         
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 DSD1791
SNR(Typ)(dB)113  
# DACs2  
# Inputs / # Outputs0 / 2  
Sampling Rate(Max)(kHz)192  
Resolution(Bits)24  
Digital Audio InterfaceL,R,I2S,TDMCA,DSD  
Control InterfaceSPI  
Analog Supply(V)4.5 - 5.5  
Digital Supply (up to 5 V)(V)3 - 3.6  
Pd(Typ)(mW)90  
Additional FeaturesTDMCA/DSD Support  
Operating Temp Range(Celsius)-25 to 85  
Pin/Package28SSOP  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • DSD1796: 123dB SNR Stereo Audio DAC (S/W Control)
  • PCM1795: 32-bit, 192kHz Sampling, Advanced Segment, Audio Stereo DAC
  • DSD1702: 108dB SNR Stereo Audio DAC

Product Information

Features

  • Supports both DSD and PCM Formats
  • 24-Bit Resolution
  • Analog Performance:
    • Dynamic Range: 113 dB
    • THD+N: 0.001%
    • Full-Scale Output: 2.1 V RMS (at Postamp)
  • Differential Voltage Output: 3.2 Vp-p
  • 8× Oversampling Digital Filter:
    • Stop-Band Attenuation: –82 dB
    • Pass-Band Ripple: ±0.002 dB
  • Sampling Frequency: 10 kHz to 200 kHz
  • System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect
  • Accepts 16-, 20-, and 24-Bit PCM Audio Data
  • PCM Data Formats: Standard, I2S, and Left-Justified
  • DSD Format Interface Available
  • Optional Interface to External Digital Filter or DSP Available
  • TDMCA Interface Available
  • User-Programmable Mode Controls:
    • Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step
    • Digital De-Emphasis
    • Digital Filter Rolloff: Sharp or Slow
    • Soft Mute/PCM Format
    • Zero Detect Mute/PCM Format
    • Zero Flag for Each Output/PCM and DSD Formats
  • Dual Supply Operation:
    • 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs
  • Small 28-Lead SSOP Package
  • APPLICATIONS
    • A/V Receivers
    • SACD Players
    • DVD Players
    • HDTV Receivers
    • Car Audio Systems
    • Digital Multitrack Recorders
    • Other Applications Requiring 24-Bit Audio

Description

The DSD1791 is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The DSD1791 provides balanced voltage outputs, allowing the user to optimize analog performance externally. The DSD1791 accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The DSD1791 also accepts interface to external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through a three-wire serial control port. The DSD1791 also supports the time-division-multiplexed command and audio (TDMCA) data format.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
DSD1791DBACTIVE-25 to 852.50 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
DSD1791DBG4ACTIVE-25 to 852.50 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
DSD1791DBRACTIVE 2.25 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
DSD1791DBRG4ACTIVE 2.25 | 1kuSSOP (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

Reported Distributor Inventory as of 11:50 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 1 WeekDSD1791DB
AmericasRochester Electronics 60
AsiaWPI 49
WorldwideDigiKey 154
TI Lead Time*: 1 WeekDSD1791DBG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksDSD1791DBR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksDSD1791DBRG4
WorldwideDigiKey  Available
View all Distributors  

** 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
DSD1791DB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
DSD1791DBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
DSD1791DBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
DSD1791DBRG4 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

Most useful technical documents for DSD1791 Help

Datasheet

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Tools & Software

NamePart # Company Tool / Software Type
Quick Search Selection Tool for AudioAUDIO_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
DSD1796 123dB SNR Stereo Audio DAC (S/W Control) AUDIO CONVERTER AND CODEC-DIGITAL TO ANALOG TI customers also evaluated this product.
PCM1795 32-bit, 192kHz Sampling, Advanced Segment, Audio Stereo DAC AUDIO CONVERTER AND CODEC-DIGITAL TO ANALOG TI customers also evaluated this product.
DSD1702 108dB SNR Stereo Audio DAC AUDIO CONVERTER AND CODEC-DIGITAL TO ANALOG TI customers also evaluated this product.

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