TFA9879D: Digital-in Class-D audio amplifier demonstration kit | NXP Semiconductors

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Digital-in Class-D audio amplifier demonstration kit

TFA9879D
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

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The demonstration PCB is designed to operate from a single supply with a wide supply voltage range of 2.5V - 5.5V delivering an output power up to 1.6WRMS in 8W Ω BTL or 2.7WRMS 4W Ω BTL. The application PCB area for the TFA9879 is very small because only three external components are required. The demo board is EMC compliant and contains 15kV ESD protections at the speaker output.

Product Details

Features

General

  • Wide supply voltage range 2.5 V - 5.5 V
  • Two digital inputs (I2S and PCM/IOM2 formats, 1.8 V and 3.3 V tolerant) which are less sensitive to external RF fields
  • Internal Phase-Locked Loop (PLL) requiring no system clock
  • High efficiency of 92% and low power consumption
  • Closed loop amplifier resulting in excellent audio performance:
    • PSRR = -76 dB
    • S/N = -95 dB (A-weighted)
    • THD+N = 0.015% at 100 mWRMS
  • High-power capability:
    • 2.7 WRMS in 4 W Ω BTL at 5 V
    • 1.6 WRMS in 8 W Ω BTL at 5 V
  • Protections including diagnostic via I2C:
    • I2S and PCM/IOM2 input protections
      • Under Frequency Protection (UFP)
      • Over Frequency Protection (OFP)
      • Invalid Bit clock Protection (IBP)
    • OverCurrent Protection (OCP)
    • OverTemperature Protection (OTP)
  • HVQFN24 package

DSP

  • Volume control (-70 dB to +24 dB)
  • 5-band parametric equalizer
  • Dynamic Range Compression
  • Bass-treble control (-18 dB to +18 dB)
  • High-pass filter
  • Power limiter (0 dB to -124 dB)
  • Zero crossing detect
N true 0 TSPTFA9879Den 1 User Guide User Guide t792 1 en_US en_US 1 1 5 English This User Manual describes the TFA9879 digital input mono Class-D demonstration PCB based on TFA9879 filter-free mono BTL Class-D audio amplifier device. 1511820494150713569218 TSP 1.5 MB None None documents Y None 1511820494150713569218 /docs/en/user-guide/UM10340.pdf 1542286 /docs/en/user-guide/UM10340.pdf UM10340 N N 2017-11-27 UM10340: TFA9879 digital input mono Class-D amplifier demo PCB /docs/en/user-guide/UM10340.pdf /docs/en/user-guide/UM10340.pdf User Guide N 132339537837198660 2022-12-07 pdf N en Aug 30, 2011 User Guide t792 User Guide User Guide N UM10340: TFA9879 digital input mono Class-D amplifier demo PCB false en false 0 TFA9879D downloads en true 0 Y TSP User Guide 1 /docs/en/user-guide/UM10340.pdf 2017-11-27 1511820494150713569218 TSP 1 Aug 30, 2011 User Guide User Guide This User Manual describes the TFA9879 digital input mono Class-D demonstration PCB based on TFA9879 filter-free mono BTL Class-D audio amplifier device. Y None /docs/en/user-guide/UM10340.pdf English 1542286 None User Guide 2022-12-07 N /docs/en/user-guide/UM10340.pdf UM10340: TFA9879 digital input mono Class-D amplifier demo PCB /docs/en/user-guide/UM10340.pdf documents 132339537837198660 User Guide N en None t792 pdf 5 N N UM10340: TFA9879 digital input mono Class-D amplifier demo PCB 1.5 MB UM10340 N 1511820494150713569218 true Y Tools

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