TLV320DAC3120 Low-Power Audio DAC with miniDSP and 2.5W Mono Class-D Speaker Amplifier |

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Low-Power Audio DAC with miniDSP and 2.5W Mono Class-D Speaker Amplifier


Recommended alternative parts

  • TLV320DAC32  -  Stereo with 3.3V single supply, higher power consumption, less advanced filtering capabilities
  • TLV320DAC3100  -  Pin to pin, stereo HP amplifier, no miniDSP
  • TLV320AIC3120  -  Pin to pin CODEC


The TLV320DAC3120 is a low-power, highly integrated, high-performance mono DAC with 24-bit mono playback.

The device integrates several analog features, such as a microphone bias, headphone drivers, and a mono speaker driver capable of driving a 4-Ω load. The TLV320DAC3120 has a fully programmable miniDSP for digital audio processing. The digital audio data format is programmable to work with popular audio standard protocols (I2S, left/right-justified) in master, slave, DSP, and TDM modes. Bass boost, treble, or EQ can be supported by the programmable digital-signal processing block. An on-chip PLL provides the high-speed clock needed by the digital signal-processing block. The volume level can be controlled by either a pin control or by register control. The audio functions are controlled using the I2C serial bus.

The TLV320DAC3120 is available in a 32-pin QFN package.

This data manual is designed using PDF document-viewing features that allow quick access to information. For example, performing a global search on "page 0 / register 27" produces all references to this page and register in a list. This makes is easy to traverse the list and find all information related to a page and register. Note that the search string must be of the indicated format. Also, this document includes document hyperlinks to allow the user to quickly find a document reference. To come back to the original page, click the green left arrow near the PDF page number at the bottom of the file. The hot-key for this function is alt-left arrow on the keyboard. Another way to find information quickly is to use the PDF bookmarks.


  • Mono Audio DAC With 95-dB SNR
  • Instruction-Programmable Embedded miniDSP
  • Supports 8-kHz to 192-kHz Sample Rates
  • Mono Class-D BTL Speaker Driver (2.5 W Into 4 ύ or 1.6 W Into 8 ύ)
  • Mono Headphone/Lineout Driver
  • Two Single-Ended Inputs With Output Mixing and Level Control
  • Microphone Bias
  • Built-in Digital Audio Processing Blocks With User-Programmable Biquad, FIR
    Filters, and DRC
  • Digital Sine-Wave Generator for Beeps and Clicks (PRB_P25)
  • Programmable Digital Audio Processor for Bass Boost/Treble/EQ
    With up to Six Biquads for Playback
  • Pin Control or Register Control for Digital Playback Volume-Control Settings
  • Integrated PLL Used for Programmable Digital Audio Processor
  • I2S, Left-Justified, Right-Justified, DSP, and TDM Audio Interfaces
  • I2C Control With Register Auto-Increment
  • Full Power-Down Control
  • Power Supplies:
    • Analog: 2.7 V–3.6 V
    • Digital Core: 1.65 V–1.95 V
    • Digital I/O: 1.1 V–3.6 V
    • Class-D: 2.7 V–5.5 V (SPKVDD ≥ AVDD)
  • 5-mm × 5-mm 32-QFN Package
    • Portable Audio Devices
    • eBook
    • Portable Navigation Devices

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Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Sampling rate (Max) (kHz) PSRR (dB) Operating temperature range (C) Rating
TLV320DAC3120 Order now Analog Input     Class-D     Mono     2.7     3.6     2.5     4     95     0.008     16.38     I2C     Open     2.7     3.6     192     44     -40 to 85     Catalog    
TLV320DAC23 Order now   Delta-Sigma                     I2C
      96       -10 to 70
-40 to 85    
TLV320DAC26 Samples not available   Delta-Sigma                     SPI           53       -40 to 85     Catalog    
TLV320DAC3100 Order now Analog Input     Class-D     Mono     2.7     3.6     2.5     4     95     0.008     16.38     I2C     Open     2.7     3.6     192     62     -40 to 85     Catalog    
TLV320DAC3101 Order now Analog Input     Class-D     Stereo     2.7     3.6     1.29