TAS2505-Q1 2.6W Mono Digital & Analog Input Automotive Class-D Speaker Amplifier | TI.com

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2.6W Mono Digital & Analog Input Automotive Class-D Speaker Amplifier



The TAS2505-Q1 is a mono Class-D speaker amp that supports both Digital and Analog inputs. The device is ideal 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, 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.


  • AEC-Q100 Qualified With the Following Results for Automotive Applications:
    • Device Temperature Grade 1: –40°C to 125°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 (4Ω, 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)
  • I2S, Left-Justified, Right-Justified, DSP, and TDM Audio Interfaces
  • I2C and SPI Control With Auto-Increment
  • 24-Pin, VQFN Wettable Flank (Automotive Grade) Package

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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
TAS2505-Q1 Order now Analog Input
Digital Input    
Class-D     Mono     2.7     5.5     2.6     4     94     0.02     0.002     I2C
Closed     1.5     1.95     96     47.2     -40 to 105     Automotive    
LM48100Q-Q1 Order now Analog Input     Class-AB     Mono     3     5.5     2.4     8     104     0.04     4.4     I2C     Closed     3     5.5       74     -40 to 105     Automotive    
TAS2521 Order now Analog Input
Digital Input    
Class-D     Mono     1.5     1.95     2     4     94     0.012     0.002     I2C
Open     1.5     1.95     192     47.2     -40 to 85     Catalog    
TPA2005D1-Q1 Order now Analog Input     Class-D     Mono     4.4     5.5     1.18     8     97     0.2     2.8     Hardware     Open     4.5     5.5       75     -40 to 105
-40 to 85