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Product details

Parameters

DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (Typ) (dB) 106 Sampling rate (Max) (kHz) 192 Control interface H/W Resolution (Bits) 24 Architecture Delta-Sigma open-in-new Find other Audio DACs

Package | Pins | Size

SSOP (DBQ) 16 29 mm² 4.9 x 6 open-in-new Find other Audio DACs

Features

  • 24-Bit Resolution
  • Analog Performance (VCC = 5 V):
    • Dynamic Range: 106 dB
    • SNR: 106 dB, Typical
    • THD+N: 0.002%, Typical
    • Full-Scale Output: 3.9 Vp-p, Typical
  • 4×/8× Oversampling Digital Filter:
    • Stop-Band Attenuation: -50 dB
    • Pass-Band Ripple: ±0.04 dB
  • Sampling Frequency: 5 kHz to 200 kHz
  • System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, 1152 fS With Autodetect
  • Software Control (PCM1780, PCM1782):
    • Accepts 16-, 18-, 20-, and 24-Bit Audio Data
    • Formats: Right-Justified, I2S, and Left-Justified
    • Digital Attenuation: Mode Selectable
      • 0 dB to -63 dB, 0.5 dB/step
      • 0 dB to -100 dB, 1 dB/step
    • Digital De-Emphasis
    • Digital Filter Rolloff: Sharp or Slow
    • Soft Mute
    • Zero Flags for Each Output
    • Open-Drain Output Zero Flag (PCM1782)
  • Hardware Control (PCM1781):
    • I2S and 16-Bit Word, Right-Justified
    • Digital De-Emphasis
    • Soft Mute
    • Zero Flag for L-, R-Channel Common Output
  • Power Supply: 5-V Single Supply
  • Small, 16-Lead SSOP Package (150 mil)
  • Pin-Compatible with PCM1680
  • APPLICATIONS
    • A/V Receivers
    • DVD Movie Players
    • DVD Add-On Cards For High-End PCs
    • DVD Audio Players
    • HDTV Receivers
    • Car Audio Systems
    • Other Applications Requiring 24-Bit Audio

System Two, Audio Precision are trademarks of Audio Precision, Inc.
All other trademarks are the property of their respective owners.

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Description

The PCM1780/81/82 is a CMOS, monolithic, integrated circuit, which includes stereo digital-to-analog converters and support circuitry in a small 16-lead SSOP package. The data converters use TI’s enhanced multilevel delta-sigma architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1780/81/82 accepts industry standard audio data formats with 16- to 24-bit data, providing easy interfacing to audio DSP and decoder chips. Sampling rates up to 200 kHz are supported. The PCM1780/82 provides a full set of user-programmable functions through a three-wire serial control port, which supports register write functions. The PCM1781 provides a subset of user-programmable functions through four control pins.

The PCM1780 is pin-compatible with the PCM1680 (8-channel DAC).

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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, Enhanced Multilevel, Delta-Sigma, Audio datasheet (Rev. B) Jul. 05, 2006
User guide PCM1780, PCM1781, PCM1782 User Guide May 05, 2009
User guide DEM-DAI1780/1781/1782 EVM Feb. 07, 2007
Application note Dynamic Performance Testing of Digital Audio D/A Converters Oct. 02, 2000
Application note A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters Sep. 27, 2000
Application note THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 Sep. 27, 2000

Design & development

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CAD/CAE symbols

Package Pins Download
SSOP (DBQ) 16 View options

Ordering & quality

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