ヘッドフォン & 低出力アンプ

STのヘッドフォン & 低出力アンプの製品ポートフォリオは、設計および機能において優れた柔軟性を提供し、お客様のアプリケーションに完全に適合します。

  • 最適なオーディオ性能と電力効率をもたらすAB級、G級、およびフィルタレスD級アーキテクチャ
  • キャップレスおよびフィルタレス増幅など、部品点数を削減する高い集積機能
  • 実装面積に制限のあるアプリケーション向けの超小型パッケージなどを含む幅広いパッケージ・オプション

A22H165: available either I2C controlled or in u-less config

The A22H165 is a class-G stereo headphone driver dedicated to high audio performance, high power efficiency and space-constrained applications. When powered by a battery, the buck converter generates the appropriate voltage to the amplifier depending on the amplitude of the audio signal to supply the headsets. It achieves a total 2.1 mA current consumption at 100 μW output power (10 dB crest factor). Stand-by current consumption  is as low as 0.6μA thus guaranteeing and extended battery life. The A22H165 comes into flip chip package measuring 1.65x1.65x0.6mm, 16 bumps, 0.4mm pitch. Combining high efficiency, high audio quality and small size into a single device, the A22H165 is the perfect match for portable applications such as smartphones, tablets and media players.