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 Power to parallel bridge tied load (Max) (W) 43 Sampling rate (Max) (kHz) 96 PSRR (dB) 80 Rating Automotive 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 guides TAS5760xxEVM User's Guide (Rev. A) Dec. 19, 2013

Design & development

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

Hardware development

document-generic User guide
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)

CAD/CAE symbols

Package Pins Download
HTSSOP (DAP) 32 View options

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