PCM1792A

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

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Product details

Parameters

DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (Typ) (dB) 127 Sampling rate (Max) (kHz) 192 Control interface SPI, I2C Resolution (Bits) 24 Architecture Advanced Segment open-in-new Find other Audio DACs

Package | Pins | Size

SSOP (DB) 28 54 mm² 5.30 x 10.20 open-in-new Find other Audio DACs

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-, 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
    • Soft Mute
    • Zero Flag for Each Output
  • Dual Supply Operation:
    • 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs
  • Small 28-Lead SSOP Package
  • APPLICATIONS
    • A/V Receivers
    • SACD Player
    • DVD Players
    • HDTV Receivers
    • Car Audio Systems
    • Digital Multitrack Recorders
    • Other Applications Requiring 24-Bit Audio

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Description

The PCM1792A 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 PCM1792A provides balanced current outputs, allowing the user to optimize analog performance externally. The PCM1792A accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1792A 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 SPI or I²C serial control port, which supports register write and readback functions. The PCM1792A also supports the time division multiplexed command and audio (TDMCA) data format.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo DAC datasheet (Rev. B) Oct. 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
Application notes A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters Sep. 27, 2000
Application notes THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 Sep. 27, 2000

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

DRIVERS & LIBRARIES Download
Linux Driver for PCM179X
PCM179XSW-LINUX The Linux driver supports the PCM179x family of Audio DACs. The Linux driver supports communication through I2C and SPI, and registers with the ASOC framework of the Linux kernel.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • pcm1792a
Linux (...)
SUPPORT SOFTWARE Download
SLAC244.ZIP (255 KB)

Design tools & simulation

SIMULATION MODELS Download
SLEM004.ZIP (29 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SSOP (DB) 28 View options

Ordering & quality

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