
HT97230
带有3D环绕和低音增强的125mW免输出耦合电容
立体声线路驱动器/耳机放大器
HT97230为差分打印打出的、可进行打印打出的的线路图动力软件器/苹果头戴式耳机放小器。5V供气时,元元件为1kΩ电机电流带来了3VRMS打印打出的动力软件;3.3V供气时,为600Ω电机电流带来了2VRMS打印打出的动力软件。5V供气时,元元件为32Ω苹果头戴式耳机电机电流带来了125mW动力软件。IC存在6dB组织结构稳固增加收益,也可利于外链热敏电阻功率如何放置增加收益(如今仅带来了外链热敏电阻功率如何放置增加收益的版本的,另外的的版本的需网上预订)。IC在全部整个声频频段内带来了优等的THD+N。
HT97230有两个不同开启时间(tON)版本,版本A、C和E的导通时间tON为5.5ms,用于耳机驱动;B和D则具有130ms的tON,用于机顶盒设计(目前仅提供A版本,其他版本需预定)。内部电荷泵对输入电源反相,产生负电源。放大器的输出级由输入正电源和电荷泵输出负电源供电,双极性供电使得输出偏置在零电位,省去了大尺寸、容易引入失真的输出耦合电容。ICSD开关时没有咔嗒/噼噗声。
HT97230拥有3D缠绕模式切换切换,才可以在立体图声耳麦上带来3D缠绕声的体验。HT97220再有拥有低音促进模式切换切换,可重要依据耳麦频响性能特点,对个别频段的低音实施各种度的完善促进,达成低音促进的成果。HT97230保证无铅无卤QFN24L-PP装封,保证QFN20L-PP装封的开发实际需求。价格:¥ | 库存99999 |
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优点
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引脚定义
PIN | NAME | FUNCTION |
1 | PVDD | Charge-Pump Power-Supply Input. Bypass to PGND with 1uF. |
2 | C1P | Positive Flying Capacitor Connection. Connect a 1uF capacitor between C1P and C1N. |
3 | PGND | Power Ground. Connect PGND and SGND together at the system ground plane. |
4 | C1N | Negative Flying Capacitor Connection. Connect a 1uF capacitor between C1P and C1N. |
5 | PVSS | Negative Charge-Pump Output. Bypass to PGND with 1uF. |
6 | SGND | Signal Ground. Connect PGND and SGND, SGND1 together at the system ground plane. |
7 | SGND1 | Signal Ground. Connect PGND and SGND, SGND1 together at the system ground plane. |
8 | D3R | 3D control pin. |
9 | INRNF | Right channel feedback. |
10 | BASSR | Right channel Bass control output. |
11 | INR+ | Right Positive Polarity Input |
12 | INR- | Right Negative Polarity Input |
13 | SVDD2/TEST | Signal Path Power-Supply Input. Bypass to PGND with 1uF. Connect directly to PVDD. |
14 | OUTR | Right Direct Drive Output |
15 | BIAS | Internal Supply Node. Bypass to PGND with 0.1uF. |
16 | OUTL | Left Direct Drive Output |
17 | CTL | 3D and Bass function control. |
18 | SVDD | Signal Path Power-Supply Input. Bypass to PGND with 1uF. Connect directly to PVDD. |
19 | INL- | Left Negative Polarity Input |
20 | INL+ | Left Positive Polarity Input |
21 | BASSL | Left channel Bass control output. |
22 | INLNF | Left channel feedback. |
23 | D3L | 3D control pin. |
24 | N_SHDN | Active-Low Shutdown. Drive N_SHDN high for normal operation. |
EP | Exposed Pad. Connect at the system ground plane. |