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DSD1794A Status: ACTIVE

132dB SNR Highest Performance Stereo Audio DAC (H/W Control)


      
         
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 DSD1794A
SNR(Typ)(dB)127  
# DACs2  
# Inputs / # Outputs0 / 2  
Sampling Rate(Max)(kHz)192  
Resolution(Bits)24  
Digital Audio InterfaceL,R,I2S,DSD  
Control InterfaceI2C  
Analog Supply(V)4.75 - 5.25  
Digital Supply (up to 5 V)(V)3 - 3.6  
Pd(Typ)(mW)205  
Additional FeaturesDSD Support  
Operating Temp Range(Celsius)-25 to 85  
Pin/Package28SSOP  
 Samples
 Inventory

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  • DSD1792A: 132dB SNR Highest Performance Stereo Audio DAC (S/W Control)
  • DIR9001: 96kHz Digital Audio Receiver
  • SRC4192: High-End Sample Rate Converter
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Product Information

Features

  • Supports Both DSD and PCM Formats
  • 24-Bit Resolution
  • Analog Performance:
    • Dynamic Range:
      • 132 dB (9 V RMS, Mono)
      • 129 dB (4.5 V RMS, Stereo)
      • 127 dB (2 V RMS, Stereo)
    • THD+N: 0.0004%
  • Differential Current Output: 7.8 mA p-p
  • 8× Oversampling Digital Filter:
    • Stop-Band Attenuation: –130 dB
    • Pass-Band Ripple: ±0.00001 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 Audio Data
  • PCM Data Formats: Standard, I2S, and Left-Justified
  • Optional Interface to External Digital Filter or DSP Available
  • I2C-Compatible Serial Port
  • User-Programmable Mode Controls:
    • Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step

View All Features in Datasheet

Description

The DSD1794A 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 DSD1794A provides balanced current outputs, allowing the user to optimize analog performance externally. The DSD1794A accepts the PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The DSD1794A also interfaces with 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 an I2C-compatible serial port.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
DSD1794ADBACTIVE-25 to 8511.75 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
DSD1794ADBG4ACTIVE-25 to 8511.75 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
DSD1794ADBRACTIVE-25 to 8510.65 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
DSD1794ADBRG4ACTIVE-25 to 8510.65 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint

* 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 11:58 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksDSD1794ADB
AsiaFarnell Asia 47
EuropeFarnell 47
WorldwideDigiKey  Available
Mouser Electronics 35
TI Lead Time*: 20 WeeksDSD1794ADBG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksDSD1794ADBR
WorldwideDigiKey 43
TI Lead Time*: 20 WeeksDSD1794ADBRG4
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
DSD1794ADB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
DSD1794ADBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
DSD1794ADBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
DSD1794ADBRG4 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 DSD1794A Help

Datasheet

Tools & Software

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

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