Product details

Audio input type Analog Input, Digital Input Architecture Class-D Speaker channels (max) Mono Rating Automotive Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 4 Output power (W) 2.6 SNR (dB) 94 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 0.002 Control interface I2C, SPI Closed/open loop Closed Analog supply (min) (V) 1.5 Analog supply voltage (max) (V) 1.95 Sampling rate (max) (kHz) 96 PSRR (dB) 47.2 Operating temperature range (°C) -40 to 105
Audio input type Analog Input, Digital Input Architecture Class-D Speaker channels (max) Mono Rating Automotive Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 4 Output power (W) 2.6 SNR (dB) 94 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 0.002 Control interface I2C, SPI Closed/open loop Closed Analog supply (min) (V) 1.5 Analog supply voltage (max) (V) 1.95 Sampling rate (max) (kHz) 96 PSRR (dB) 47.2 Operating temperature range (°C) -40 to 105
VQFN (RGE) 24 16 mm² 4 x 4
  • AEC-Q100 Qualified with the following results for automotive applications:
    • Device temperature grade 2: –40°C to 105°C ambient operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C4B
  • Mono class-D BTL speaker amplifier
    • 2.6 W at 10% THD_N (4 Ω, 5.5 V)
    • 1.7 W at 10% THD+N (8 Ω, 5.5 V)
  • Supports both digital and analog input
  • Single supply 2.7 V to 5.5 V
  • Load diagnostic functions:
    • Output-to-GND Short
    • Terminal-to-terminal short
    • Output-to-power short
    • Over temperature
  • Supports 9-kHz to 96-kHz 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)
  • I 2S, Left-justified, right-justified, DSP, and TDM audio interfaces
  • I 2C and SPI Control With Auto-Increment
  • 24-Pin, VQFN wettable flank (automotive grade) package
  • AEC-Q100 Qualified with the following results for automotive applications:
    • Device temperature grade 2: –40°C to 105°C ambient operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C4B
  • Mono class-D BTL speaker amplifier
    • 2.6 W at 10% THD_N (4 Ω, 5.5 V)
    • 1.7 W at 10% THD+N (8 Ω, 5.5 V)
  • Supports both digital and analog input
  • Single supply 2.7 V to 5.5 V
  • Load diagnostic functions:
    • Output-to-GND Short
    • Terminal-to-terminal short
    • Output-to-power short
    • Over temperature
  • Supports 9-kHz to 96-kHz 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)
  • I 2S, Left-justified, right-justified, DSP, and TDM audio interfaces
  • I 2C and SPI Control With Auto-Increment
  • 24-Pin, VQFN wettable flank (automotive grade) package

The TAS2505-Q1 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 I 2S input removes the need for an external DAC in the audio signal path , and the integrated LDO enables single supply operation. 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-Q1 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 I 2S input removes the need for an external DAC in the audio signal path , and the integrated LDO enables single supply operation. 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-Q1 2.6-W Digital/Analog Input Automotive Class-D Speaker Amplifier With Audio Processing datasheet (Rev. E) PDF | HTML 26 Jun 2023
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
Technical article Exploring evolving trends in automotive cluster audio design PDF | HTML 17 Feb 2020
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

TAS2505-Q1EVM — TAS2505-Q1 Audio Amplifier Evaluation Board with Diagnostics

The TAS2505-Q1EVM Evaluation Module (EVM) is a complete demo and evaluation reference design for the TAS2505-Q1, which is a low-power Class-D digital audio amplifier with analog, digital, and mixed input capabilities. The EVM can be controlled via USB using TI’s Codec Control software, or (...)

Not available on TI.com
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.
Simulation model

TAS2505 IBIS Model

SLAM181.ZIP (125 KB) - IBIS Model
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 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)
Audio ADCs
TLV320ADC3001 92dB SNR Low-Power Stereo ADC (ADC3001) TLV320ADC3101 92-dB SNR low-power stereo ADC with digital microphone support and miniDSP
Speaker amps
TAS2505 2-W, mono, digital & analog input Class-D audio amp with audio processing & mono headphone amplifier TAS2505-Q1 Automotive, 2-W, mono, digital or analog input Class-D amplifier with audio processing TAS2521 2-W, mono, digital & analog input Class-D audio amp with miniDSP & 18-mW, mono headphone driver
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 (...)
Reference designs

TIDA-01529 — Cluster and eCall Audio Reference Design With Diagnostics

This reference design is based on the TAS2505-Q1, which is a low-power Class-D digital audio amplifier with analog, digital, and mixed input capabilities. This design shows TAS2505-Q1 as suitable for automotive cluster and eCall applications by showcasing the device's ability to run on a single 5-V (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VQFN (RGE) 24 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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