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TAS2505

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2-W, mono, digital & analog input Class-D audio amp with audio processing & mono headphone amplifier

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Data sheet

TAS2505

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input, Digital Input Architecture Class-D Speaker channels (max) Mono Control interface I2C, SPI Output power (W) 2.6 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 THD + N at 1 kHz (%) 0.012 Load (min) (Ω) 4 Analog supply voltage (min) (V) 1.5 Analog supply voltage (max) (V) 1.95 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input, Digital Input Architecture Class-D Speaker channels (max) Mono Control interface I2C, SPI Output power (W) 2.6 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 THD + N at 1 kHz (%) 0.012 Load (min) (Ω) 4 Analog supply voltage (min) (V) 1.5 Analog supply voltage (max) (V) 1.95 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² 4 x 4
  • Mono class-D BTL speaker amplifier
    • 2.6W at 10% THD_N (4Ω, 5.5V)
    • 1.7W at 10% THD+N (8Ω, 5.5V)
  • Supports both digital and analog input
  • Single supply 2.7V to 5.5V
  • Load diagnostic functions:
    • Output-to-GND Short
    • Terminal-to-terminal short
    • Output-to-power short
    • Over temperature
    • Input DC
  • Supports 9kHz to 96kHz sample rates
  • Two single-ended inputs with output mixing and level control
  • Embedded power-on-reset
  • Programmable digital audio processing:
    • Bass boost
    • Treble
    • EQ (up to 6 biquads)
  • I2S, Left-justified, right-justified, DSP, and TDM audio interfaces
  • I2C and SPI Control With Auto-Increment
  • 24-Pin, VQFN package
  • Mono class-D BTL speaker amplifier
    • 2.6W at 10% THD_N (4Ω, 5.5V)
    • 1.7W at 10% THD+N (8Ω, 5.5V)
  • Supports both digital and analog input
  • Single supply 2.7V to 5.5V
  • Load diagnostic functions:
    • Output-to-GND Short
    • Terminal-to-terminal short
    • Output-to-power short
    • Over temperature
    • Input DC
  • Supports 9kHz to 96kHz sample rates
  • Two single-ended inputs with output mixing and level control
  • Embedded power-on-reset
  • Programmable digital audio processing:
    • Bass boost
    • Treble
    • EQ (up to 6 biquads)
  • I2S, Left-justified, right-justified, DSP, and TDM audio interfaces
  • I2C and SPI Control With Auto-Increment
  • 24-Pin, VQFN package

The TAS2505 is a mono Class-D speaker amp that supports both Digital and Analog inputs. The device is designed for automotive instrument cluster, emergency call (eCall), and telematics applications. Direct I2S input removes the need for an external DAC in the audio signal path. In addition to integration, the device features programmable audio processing. The onboard DSP supports bass boost, treble, and EQ (up to 6 biquads). An on-chip PLL provides the high-speed clock needed by the DSP. The volume level is register controlled.

The TAS2505 is a mono Class-D speaker amp that supports both Digital and Analog inputs. The device is designed for automotive instrument cluster, emergency call (eCall), and telematics applications. Direct I2S input removes the need for an external DAC in the audio signal path. In addition to integration, the device features programmable audio processing. The onboard DSP supports bass boost, treble, and EQ (up to 6 biquads). An on-chip PLL provides the high-speed clock needed by the DSP. The volume level is register controlled.
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Technical documentation

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Type Title Date
* Data sheet TAS2505 2.6W Digital/Analog Input Class-D Speaker Amplifier With Audio Processing datasheet (Rev. D) PDF | HTML 01 Jan 2025
User guide TAS2505 Application Reference Guide (Rev. C) PDF | HTML 28 Nov 2023
Application note Automotive Diagnostics Using TAS2505-Q1 (Rev. C) PDF | HTML 29 Jun 2022
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
User guide TAS25xx Codec Control EVM (Rev. A) 31 Oct 2017
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013

Design & development

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

Evaluation board

TAS2505EVM — TAS2505 2W Class-D Audio Amplifier Evaluation Module

The TAS2505 is a low power digital input speaker amp with support for 24-bit digital I2S data mono playback.

In addition to driving a speaker amp up to 4-Ω, the device also features a mono headphone driver and a programmable digital-signal processing block. The digital audio data format is (...)

User guide: PDF | HTML
Not available on TI.com
Driver or library

TAS2XXX-DRIVERS — Android and other drivers for the TAS25XX and TAS27XX series of Class-D amplifiers

These Android drivers support TI’s low power digital input Class-D audio amplifier devices. The "Get software" buttons link to git.ti.com repositories for these open-source drivers.
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GUI for evaluation module (EVM)

SLAC772 — TAS25xx Codec Control EVM GUI

Supported products & hardware

Supported products & hardware

Products
General-purpose audio amplifiers
  • TAS2505 — 2-W, mono, digital & analog input Class-D audio amp with audio processing & mono headphone amplifier
  • TAS2521 — 2-W, mono, digital & analog input Class-D audio amp with miniDSP & 18-mW, mono headphone driver
Hardware development
Evaluation board
  • TAS2505EVM — TAS2505 2W Class-D Audio Amplifier Evaluation Module
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Simulation model

TAS2505 IBIS Model

SLAM181.ZIP (125 KB) - IBIS Model
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Calculation tool

COEFFICIENT-CALC — Coefficient Calculator For Digital Biquad Filters

COEFFICIENT-CALC (TIBQ) calculates the coefficients for the digital filter biquad transfer function implemented in TI audio codecs. The characteristics of the digital filter are adjusted by selecting a filter type and moving a control point within a window that shows the transfer function gain and (...)

Supported products & hardware

Supported products & hardware

Products
Audio CODECs
  • TLV320AIC26 — Low-Power Mono ADC/Stereo DAC With HP/Speaker Amplifier and 12-Bit Measurement ADC
  • TLV320AIC28 — Low-Power Mono ADC/Stereo DAC With 6 Audio Inputs and HP/Speaker Amplifier
  • TLV320AIC29 — Low-Power Mono ADC/Stereo DAC With 6 Audio Inputs and HP/Speaker Amplifier
  • TLV320AIC3007 — Low Power Stereo CODEC with Integrated Class-D Amplifier
  • TLV320AIC31 — Low-Power Stereo Codec with 6 Inputs, 6 Outputs, Integrated Headphone/Speaker Amps, 3D Effects
  • TLV320AIC3100 — Low-Power Audio Codec With Audio Processing and Mono Class-D Amplifier
  • TLV320AIC3101 — Low-Power Stereo Codec with 6 Inputs, 6 Outputs, Speaker/HP Amp and Enhanced Digital Effects
  • TLV320AIC3104 — Low-Power Stereo CODEC with 6 Inputs, 6 Outputs, HP Amp and Enhanced Digital Effects
  • TLV320AIC3105 — Low-Power Stereo CODEC with 6 Inputs, 6 Outputs, HP Amp and Enhanced Digital Effects
  • TLV320AIC3106 — Low-power stereo CODEC with 10 inputs, 7 outputs, headphone amplifier and enhanced digital effects
  • TLV320AIC3107 — Low-Power Stereo CODEC with Integrated Mono Class-D Amplifier
  • TLV320AIC3110 — Low-Power Audio Codec With 1.3W Stereo Class-D Speaker Amplifier
  • 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
  • TLV320AIC32 — Low-Power Stereo CODEC with 6 Inputs, 6 Outputs, HP/Speaker Amplifier and 3D Effects
  • TLV320AIC3204 — Very-Low-Power Stereo Audio CODEC With PowerTune™ Technology
  • TLV320AIC3206 — Very-Low-Power Stereo Codec With DirectPath™ HP Amplifier
  • TLV320AIC3254 — Very Low-Power Stereo Audio CODEC with programmable miniDSP
  • TLV320AIC3256 — Very Low-Power Stereo Codec with miniDSP and DirectPath™ HP Amplifier
  • TLV320AIC33 — Low-Power Stereo CODEC with 10 Inputs, 7 Outputs, HP/Speaker Amplifier and Enhanced Digital Effects
  • TLV320AIC34 — Low-power 4-channel CODEC
Audio ADCs
  • TLV320ADC3001 — 92dB SNR Low-Power Stereo ADC (ADC3001)
  • TLV320ADC3101 — 92-dB SNR low-power stereo ADC with digital microphone support and miniDSP
  • TSC2100 — 4-Wire Touch Screen Controller with Stereo DAC / Mono ADC with HP/Speaker Amplifier
  • TSC2101 — 4-Wire Touch Screen Controller, St. DAC / Mono ADC with HP/Speaker Amplifier
  • TSC2102 — 4-Wire Touch Screen Controller with Stereo DAC with HP Amplifier
  • TSC2117 — 4-Wire Touch Screen Controller with Low-Power Mono ADC/Stereo DAC
  • TSC2301 — 4-Wire Touch Screen Controller, St. CODEC with HP Amplifier (Keypad Int. + 6 GPIOs)
General-purpose audio amplifiers
  • LM48901 — 2.8-W, stereo, digital input Class-AB audio amplifier
  • LM48903 — 2.8-W, stereo, digital input Class-AB audio amplifier with optional SMD package
  • TAS2505 — 2-W, mono, digital & analog input Class-D audio amp with audio processing & mono headphone amplifier
  • TAS2521 — 2-W, mono, digital & analog input Class-D audio amp with miniDSP & 18-mW, mono headphone driver
  • TPA6201A1 — 1-W Mono, Fully Differential, Class-AB Audio Amplifier
Automotive audio amplifiers
  • TAS2505-Q1 — Automotive, 2-W, mono, digital or analog input Class-D amplifier with audio processing
Speaker, TV & soundbar audio amplifiers
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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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Reference designs

TIDEP-01002 — Cost-optimized digital cluster automotive reference design with Jacinto™ automotive processor

The Jacinto™ automotive processor Digital Cluster Automotive Reference Design (DCARD) is a cost-optimized design for reconfigurable digital cluster systems.  DCARD is a complete and self-contained 6-layer PCB design to enable 60fps digital cluster solutions on 1920x720 resolution (...)
Design guide: PDF
Schematic: PDF
Reference designs

BT-MSPAUDSINK-RD — Bluetooth and MSP430 Audio Sink Reference Design

TI's Bluetooth + MSP430 Audio sink reference design can be used by customers to create a variety of applications for low end, low power audio solutions. Some application possibilities - toys, low end bluetooth speakers, audio streaming accessories. This reference design is a cost effective audio (...)
User guide: PDF
Schematic: PDF
Reference designs

TIDC-DEVPACK-LED-AUDIO — DEVPACK-LED-AUDIO

The LED Audio DevPack enables Industrial IoT lighting applications. Plug it into the SensorTag DevPack expansion header and expand your design with four high-power LEDs from Osram. The LED Audio DevPack makes it easy to create LED lighting applications controlled from a mobile phone with the (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RGE) 24 Ultra Librarian
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Ordering & quality

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  • Ongoing reliability monitoring
Information included:
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