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IS31AP2121 - 2×25W STEREO / 1× 50W MONO DIGITAL AUDIO AMPLIFIER

General Description

The IS31AP2121 is a digital audio amplifier capable of driving 25W (BTL) each to a pair of 8Ω speakers and 50W (PBTL) to a 4Ω speaker operating at 24V supply without external heat-sink or fan.

Key Features

  • 16/18/20/24-bits input with I2S, Left-alignment and Right-alignment data format.
  • PSNR & DR (A-weighting) Loudspeaker: 104dB (PSNR), 110dB (DR) @24V.
  • Multiple sampling frequencies (FS) - 32kHz / 44.1kHz / 48kHz and - 64kHz / 88.2kHz / 96kHz and - 128kHz / 176.4kHz / 192kHz.
  • System clock = 64x, 128x, 192x, 256x, 384x, 512x, 576x, 768x, 1024x Fs - 64x~1024x FS for 32kHz / 44.1kHz / 48kHz - 64x~512x FS for 64kHz / 88.2kHz / 96kHz - 64x~256x FS for 128kHz / 176.4kHz / 192kHz.

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Other Datasheets by ISSI (now Infineon)

Part Number Description
IS31AP2110 20W STEREO CLASS-D AUDIO AMPLIFIER
IS31AP2117 8W/CH STEREO CLASS-D AUDIO POWER AMPLIFIER
IS31AP2118 15W STEREO CLASS-D AUDIO POWER AMPLIFIER
IS31AP2145A MONO CLIP-LESS & FILTER-LESS CLASS-D
IS31AP2145B MONO CLIP-LESS & FILTER-LESS CLASS-D

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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IS31AP2121 2×25W STEREO / 1× 50W MONO DIGITAL AUDIO AMPLIFIER WITH 20 BANDS EQ FUNCTIONS, DRC AND 2.1CH MODE October 2015 GENERAL DESCRIPTION The IS31AP2121 is a digital audio amplifier capable of driving 25W (BTL) each to a pair of 8Ω speakers and 50W (PBTL) to a 4Ω speaker operating at 24V supply without external heat-sink or fan. The IS31AP2121 is also capable of driving 4Ω, 12W (SE)×2 + 8Ω, 25W (BTL)×1 at 24V supply for 2.1CH application. The IS31AP2121 can provide advanced audio processing functions, such as volume control, 20 EQ bands, audio mixing, 3D surround sound and Dynamic Range Control (DRC). These are fully programmable via a simple I2C control interface.