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PCM5121

ACTIVE

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

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Data sheet

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NEW TAD5142 ACTIVE Hardware-control stereo audio DAC with 110dB dynamic range, and headphone and line driver With integrated headphone amplifier, SW controlled, QFN package
NEW TAD5212 PREVIEW High-performance stereo audio DAC with 120dB dynamic range, and headphone and line driver With integrated headphone amplifier, HW controlled, QFN package

PCM5121

ACTIVE
Data sheet Order now

Product details

Number of DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (typ) (dB) 106 Sampling rate (max) (kHz) 384 Control interface H/W, I2C, SPI Resolution (Bits) 32 Architecture Delta Sigma with line driver Operating temperature range (°C) -25 to 85 Rating Catalog
Number of DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (typ) (dB) 106 Sampling rate (max) (kHz) 384 Control interface H/W, I2C, SPI Resolution (Bits) 32 Architecture Delta Sigma with line driver Operating temperature range (°C) -25 to 85 Rating Catalog
TSSOP (PW) 28 62.08 mm² 9.7 x 6.4
  • 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
  • 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

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.

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

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Type Title Date
* Data sheet PCM512x 2-VRMS DirectPath™, 112-dB and 106-dB Audio Stereo DACs With 32-Bit, 384-kHz PCM Interface datasheet (Rev. C) PDF | HTML 25 Oct 2018
EVM User's guide PCM512x/4x EVM User's Guide (Rev. A) 03 Nov 2014
Application note A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters 27 Sep 2000

Design & development

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

Evaluation board

PCM5122EVM-U — PCM5122 Evaluation Module

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 (...)

User guide: PDF
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Driver or library

PCM5XXX-DRIVERS — PCM5xxx DAC family Linux driver support

The Linux driver supports the PCM51xx device family of audio stereo digital-to-analog converters (DACs), communication through I2C and SPI, and registers with the ASOC framework of the Linux kernel. The "Go to third party" buttons below will allow you to downlod the appropriate drivers from (...)
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IDE, configuration, compiler or debugger

PUREPATHSTUDIO — PurePath™ Studio graphical development environment

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 (...)

Supported products & hardware

Supported products & hardware

Products
Audio CODECs
PCM3070 — Stereo Audio Codec With Embedded miniDSP TLV320AIC3111 — Low-Power Audio CODEC with embedded miniDSP and Stereo Class-D Speaker Amplifier TLV320AIC3120 — Low-Power Audio CODEC With miniDSP and 2.5-W Mono Class-D Speaker Amplifier TLV320AIC3253 — Ultra Low Power Stereo Audio Codec with miniDSP and Stereo Digital Microphone Input TLV320AIC3254 — Very Low-Power Stereo Audio CODEC with programmable miniDSP TLV320AIC3256 — Very Low-Power Stereo Codec with miniDSP and DirectPath™ HP Amplifier TLV320AIC3262 — Low Power Stereo Codec w/miniDSP, Stereo class-D Speakers, DirectPath Headphone TSC2117 — 4-Wire Touch Screen Controller with Low-Power Mono ADC/Stereo DAC
Audio DACs
PCM5121 — 2V RMS DIRECTPATH 106dB Audio Stereo DAC with PCM interface and fixed Audio processing PCM5122 — 2V RMS DIRECTPATH 112dB Audio Stereo DAC with PCM Interface and Fixed Audio Processing PCM5141 — 2V RMS DIRECTPATH 106dB Audio Stereo DAC with PCM interface and fully programmable miniDSP PCM5142 — 2V RMS DIRECTPATH 112dB Audio Stereo DAC with PCM interface and fully programmable miniDSP TLV320DAC3120 — Mono audio DAC with 2.5-W mono Class-D speaker amp, 60-mW headphone driver & audio processing
Audio ADCs
TLV320ADC3001 — 92dB SNR Low-Power Stereo ADC (ADC3001) TLV320ADC3101 — 92-dB SNR low-power stereo ADC with digital microphone support and miniDSP
Hardware development
Evaluation board
PCM3070RHBEVM-K — PCM3070RHBEVM-K Evaluation Module PCM5122EVM-U — PCM5122 Evaluation Module PCM5142EVM-U — PCM5142 Evaluation Module TLV320ADC3101EVM-K — TLV320ADC3101 evaluation module and USB motherboard TLV320AIC3111EVM-K — TLV320AIC3111 Evaluation Module TLV320AIC3120EVM-U — TLV320AIC3120EVM-U Evaluation Module TLV320AIC3253EVM-K — TLV320AIC3253EVM-K Evaluation Module TLV320AIC3254EVM-K — TLV320AIC3254 Evaluation Module (EVM) and USB motherboard TLV320AIC3256EVM-U — TLV320AIC3256EVM-U Evaluation Module TLV320AIC3262EVM-U — TLV320AIC3262 Evaluation Module TLV320DAC3120EVM-U — TLV320DAC3120EVM-U Evaluation Module
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 28 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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