PCM5121

ACTIVE

2V RMS DIRECTPATH 106dB Audio Stereo DAC with PCM interface and fixed Audio processing

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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) 384 Control interface I2C, SPI, H/W Resolution (Bits) 32 Architecture Delta Sigma with line driver open-in-new Find other Audio DACs

Package | Pins | Size

TSSOP (PW) 28 62 mm² 9.7 x 6.4 open-in-new Find other Audio DACs

Features

  • Register-Selectable Audio-Processing Functions up to 48-kHz fS
    • Dynamic Range Control (DRC)
    • Equalization (EQ)
    • Filtering
  • DAC Functionality to 384-kHz fS
  • Market-Leading Low Out-of-Band Noise
  • Selectable Digital-Filter Latency and Performance
  • No DC-Blocking Capacitors Required
  • Integrated Negative Charge Pump
  • Intelligent Muting System; Soft Up or Down Ramp and Analog Mute for 120-dB Mute SNR
  • Integrated High-Performance Audio PLL With BCK Reference to Generate SCK Internally
  • Accepts 16-, 20-, 24-, and 32-Bit Audio Data
  • PCM Data Formats: I2S, Left-Justified, Right-Justified, TDM / DSP
  • SPI or I2C Control
  • Software or Hardware Configuration
  • Automatic Power-Save Mode When LRCK and BCK are Deactivated
  • 1.8-V or 3.3-V Failsafe LVCMOS Digital Inputs
  • Single Supply Operation:
    • 3.3-V Analog, 1.8-V or 3.3-V Digital
  • Integrated Power-On Reset
  • Small28-Pin Package

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Description

The PCM512x devices are a family of monolithic CMOS-integrated circuits that include a stereo digital-to-analog converter and additional support circuitry in a small TSSOP package. The PCM512x uses the latest generation of TI’s advanced segment-DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter.

Members of the PCM512x family integrate preset audio processing functions with programmable coefficients, allowing developers to change the characteristics of the interpolation filter, speaker EQ, dynamic range controls, and average volume control in their products.

The PCM512x provides 2.1-VRMS ground-centered outputs, allowing designers to eliminate DC-blocking capacitors on the output, as well as external muting circuits traditionally associated with single supply line drivers.

The integrated line driver surpasses all other charge-pump-based line drivers by supporting loads down to 1 kΩ. By supporting loads down to 1 kΩ, the PCM512x can essentially drive up to 10 products in parallel (LCD TV, DVDR, AV receivers, and so forth).

The integrated PLL on the device removes the requirement for a system clock (commonly known as master clock), allowing a 3-wire I2S connection, along with reducing system EMI.

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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 4
Type Title Date
* Datasheet PCM512x 2-VRMS DirectPath™, 112-dB and 106-dB Audio Stereo DACs With 32-Bit, 384-kHz PCM Interface datasheet (Rev. C) Oct. 25, 2018
User guides PCM512x/4x EVM User's Guide (Rev. A) Nov. 03, 2014
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

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The PCM5142EVM-U is a complete evaluation kit for use with a personal computer running the Microsoft Windows ™ operating system. This EVM can be used in conjunction with PurePath™ Studio to take advantage of the fixed-function processing and mini-DSP processing capabilities of the PCM5142 and (...)

Features
  • Mini-USB connection to personal computer (PC) provides power, control, and streaming audio data for easy evaluation
  • Connection points for external control and digital audio signals for quick connection to other circuits/input devices
  • Provides rapid prototyping using CodecControl™ Graphical User (...)
  • Software development

    DRIVERS & LIBRARIES Download
    Linux Driver for PCM512X
    PCM512XSW-LINUX The Linux driver supports the PCM512x family of Audio Stereo 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:
    • pcm5121
    • (...)
    IDES, CONFIGURATION, COMPILERS & DEBUGGERS Download
    PurePath™ Studio graphical development environment
    AICPUREPATH_STUDIO PurePath™ Studio Graphical Development Environment is a powerful, easy-to-use tool designed specifically to simplify software development for Audio products with a miniDSP/ Audio Processing capability.

    The GDE permits these devices to be programmed to support the processing requirements of a wide (...)

    Design tools & simulation

    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
    TSSOP (PW) 28 View options

    Ordering & quality

    Support & training

    TI E2E™ forums with technical support from TI engineers

    Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

    If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

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