Automotive, 25-W, 1-ch , 4.5- to 26.4-V supply digital input Class-D audio amplifier


Product details


Audio input type Digital Input Architecture Class-D Speaker channels (Max) Mono Power stage supply (Max) (V) 26.4 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 2 Output power (W) 25 SNR (dB) 100 THD + N @ 1 kHz (%) 0.02 Iq (Typ) (mA) 33 Control interface Hardware, Software Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26.4 Sampling rate (Max) (kHz) 96 PSRR (dB) 80 Operating temperature range (C) -40 to 105 open-in-new Find other Speaker amps

Package | Pins | Size

HTSSOP (DAP) 32 68 mm² 11 x 6.1 open-in-new Find other Speaker amps


  • Qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C
  • Minimum supply voltage down to 4.5 V
  • Selectable hardware or software control
  • Audio performance (PVDD = 12 V, RSPK = 8 Ω, SPK_GAIN[1:0] pins = 00)
    • Idle channel noise = 69 µVrms (A-Wtd)
    • THD+N = 0.02% (at 1 W, 1 kHz)
    • SNR = 100 dB A-Wtd (Ref. to THD+N = 1%)
  • Audio I/O configuration:
    • Mono I²S input
    • 32, 44.1, 48, 88.2, 96 kHz Sample rates
  • General operational features:
    • Integrated digital output clipper
    • Programmable I²C address (1101100[R/W] or 1101101[R/W])
    • Closed-loop amplifier architecture
  • Robustness features:
    • Clock error, DC, and short-circuit protection
    • Overtemperature and programmable overcurrent protection

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The TAS5720A-Q1 is a mono I2S input Class-D audio amplifier which is ideal for use in automotive emergency call (eCall), telematics, acoustic vehicle alerting system (AVAS) and EV/HEV sound generation applications. The device provides up to 25 W instantaneous power into 4 Ω at 10% THD+N at 14.4 V. The TAS5720A-Q1 also includes hardware and software (I²C) control modes, an integrated digital clipper, selectable gain options, and a wide power supply operating range (4.5 V – 26.4 V).

The device is offered in a thermally enhanced 32-Pin TSSOP package.

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Technical documentation

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Type Title Date
* Datasheet TAS5720A-Q1 1x25-W Digital Input Closed-Loop Automotive Class-D Audio Amplifier datasheet (Rev. B) Oct. 15, 2019
User guide TAS5760xxEVM User's Guide (Rev. A) Dec. 19, 2013

Design & development

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Hardware development

The TAS5720A-Q1EVM features the TAS5720A-Q1 digital input closed-loop automotive Class-D audio amplifier. The EVM is used in conjunction with the PurePath Console Motherboard (PPCMB). It is populated with a TAS5720A-Q1 device which allows operation from power supply voltages from 4.5V to 26.4V. The (...)
  • Mono PBTL, closed loop Class-D audio amplifier
  • PurePath Console Mother Board provides flexible input signal routing (USB, SPDIF, and analog)
  • Demonstration, Evaluation and Development environment via the PurePath Console software (GUI)

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HTSSOP (DAP) 32 View options

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