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PCM1791A Status: ACTIVE

113dB SNR Stereo DAC (S/W Control)


      
         
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 PCM1791A
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, I2C  
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

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  • PCM1794A: 132dB SNR Highest Performance Stereo DAC (H/W Control)
  • LM2901-Q1: Automotive Catalog Quad Differential Comparator
  • SN74LVC16T245: 16-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and Three-State Outputs
  • TPA6112A2: 150-mW Stereo Headphone Audio Amplifier with Differential Input

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Product Information

Features

  • 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 Audio Data
  • PCM Data Formats: Standard, I2S, and Left-Justified
  • DSD Format Interface Available
  • Optional Interface to External Digital Filter or DSP Available
  • TDMCA or Serial Port (SPI/I2C)
  • User-Programmable Mode Controls:
    • Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step
    • Digital De-Emphasis
    • Digital Filter Rolloff: Sharp or Slow

View All Features in Datasheet

Description

The PCM1791A 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 PCM1791A provides balanced voltage outputs, allowing the user to optimize analog performance externally. The PCM1791A accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1791A 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 an SPI or I2C serial control port, which supports register write and readback functions.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
PCM1791ADBACTIVE-25 to 852.50 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
PCM1791ADBG4ACTIVE-25 to 852.50 | 1kuSSOP (DB) | 28 View 47 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
PCM1791ADBRACTIVE-25 to 852.25 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
PCM1791ADBRG4ACTIVE-25 to 852.25 | 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 11:11 AM GMT, 09 Feb 2010
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksPCM1791ADB
AsiaWPI 40
TI Lead Time*: 20 WeeksPCM1791ADBG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksPCM1791ADBR
None Reported
View Distributors
TI Lead Time*: 20 WeeksPCM1791ADBRG4
None Reported
View Distributors
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
PCM1791ADB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM1791ADBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM1791ADBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
PCM1791ADBRG4 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 PCM1791A 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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