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为差分搜索、可可以导出的线路图伺服推动器器/手机头戴式耳机拖动器。5V输电时,电子元件为1kΩ载荷展示3VRMS导出伺服推动器;3.3V输电时,为600Ω载荷展示2VRMS导出伺服推动器。5V输电时,电子元件为32Ω手机头戴式耳机载荷展示125mW伺服推动器。IC还具有6dB内部的固定住收获,也可使用对外部链接电容装置收获(阶段仅展示对外部链接电容装置收获传奇的,相关传奇的需指定)。IC在整体的音频文件频段内展示出众的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围绕音乐玩法,都可以在制做声头戴耳麦上创建3D围绕音乐声的味道。HT97220还要拥有低音强化玩法,可前提条件头戴耳麦频响形态,对某些频段的低音采取的不同情况的改善强化,完成低音强化的治疗效果。HT97230供给无铅无卤QFN24L-PP封口形式,供给QFN20L-PP封口形式的开发供需。价格:¥ | 库存99999 |
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特殊性
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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. |