The A21SP16 is a differential class-D BTL power amplifier. It is able to drive up to 2.3 W into a 4 Ω load and 1.4 W into a 8 Ω load at 5 V. It achieves outstanding efficiency (88% typ.) compared to classical Class-AB audio amps. The gain of the device can be controlled via two external gain-setting resistors. Pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 5 ms. A standby function (active low) allows the reduction of current consumption to 10 nA typ. https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2020-06-04 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2021-04-04 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2021-04-17 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2021-07-18 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2021-12-06 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2022-04-08 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2022-06-14 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2022-06-22 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2022-07-05 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2023-03-24 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2023-11-07 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2024-01-14 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2024-03-26 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2024-04-30 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2024-08-05 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2024-09-18 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2024-10-04 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2024-11-18 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2025-01-02 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2025-01-20 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2025-07-11 https://elecena.pl/product/16942559/a21sp16j-3-w-filter-free-class-d-audio-power-amplifier 2026-05-21