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PCM1794A Status: ACTIVE

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


      
         
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 PCM1794A
SNR(Typ)(dB)127  
# DACs2  
# Inputs / # Outputs0 / 2  
Sampling Rate(Max)(kHz)192  
Resolution(Bits)24  
Digital Audio InterfaceL,R,I2S  
Control InterfaceH/W  
Analog Supply(V)4.75 - 5.25  
Digital Supply (up to 5 V)(V)3 - 3.6  
Pd(Typ)(mW)205  
Operating Temp Range(Celsius)-25 to 85  
Pin/Package28SSOP  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • PCM1792A: 132dB SNR Highest Performance Stereo DAC (S/W Control)
  • PCM1798: 123dB SNR Stereo DAC (H/W Control)
  • PCM1795: 32-bit, 192kHz Sampling, Advanced Segment, Audio Stereo DAC
  • TAS1020B: Stereo USB Audio Interface
  • DIR9001: 96kHz Digital Audio Receiver
  • PCM2707: 98dB SNR Stereo USB2.0 FS DAC with line-out and S/PDIF output, Bus/Self-powered (S/W Control + I2S)

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Product Information

Features

  • 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- and 24-Bit Audio Data
  • PCM Data Formats: Standard, I2S, and Left-Justified
  • Optional Interface Available to External Digital Filter or DSP
  • Digital De-Emphasis
  • Digital Filter Rolloff: Sharp or Slow
  • Soft Mute
  • Zero Flag
  • Dual-Supply Operation:
    • 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs

View All Features in Datasheet

Description

The PCM1794A 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 PCM1794A provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
PCM1794ADBACTIVE-25 to 8511.75 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
PCM1794ADBG4ACTIVE-25 to 8511.75 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
PCM1794ADBRACTIVE-25 to 8510.65 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
PCM1794ADBRG4ACTIVE-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 11:45 AM GMT, 25 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksPCM1794ADB
AmericasArrow 282
Newark 47
Rochester Electronics 31
WorldwideDigiKey  Available
Mouser Electronics 100
TI Lead Time*: 20 WeeksPCM1794ADBG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksPCM1794ADBR
AmericasArrow >1k
Rochester Electronics >1k
AsiaWPI >1k
WorldwideDigiKey >1k
TI Lead Time*: 20 WeeksPCM1794ADBRG4
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
PCM1794ADB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM1794ADBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM1794ADBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM1794ADBRG4 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 PCM1794A Help

Datasheet

Application Notes

User Guides

Tools & Software

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

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