PCM1794 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Similar but not functionally equivalent to the compared device:
PCM1794A ACTIVE 132dB SNR Highest Performance Stereo DAC (H/W Control) This product is a monolithic, CMOS-integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small 28-pin SSOP package.
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Product details

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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
  • Small 28-Lead SSOP Package
  • APPLICATIONS
    • A/V Receivers
    • DVD Players
    • Musical Instruments
    • HDTV Receivers
    • Car Audio Systems
    • Digital Multitrack Recorders
    • Other Applications Requiring 24-Bit Audio

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Description

The PCM1794 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 PCM1794 provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet 24-Bit, 192- kHz Sampling, Advanced Segment, Audio Stereo DAC datasheet (Rev. C) Nov. 30, 2006
User guides DEM-PCM1792, DEM-DSD1792, DEM-PCM1794, DEM-DSD1794 EVM User's Guide Aug. 06, 2003
Application notes Dynamic Performance Testing of Digital Audio D/A Converters Oct. 02, 2000

Design & development

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Design tools & simulation

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  • Supports simultaneous analysis of multiple products
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SSOP (DB) 28 View options

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