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为差分导入、可简单所在电压的路线图推动软件器/手机耳机子缩放器。5V供水时,元器材为1kΩ额定载荷具备3VRMS所在电压推动软件;3.3V供水时,为600Ω额定载荷具备2VRMS所在电压推动软件。5V供水时,元器材为32Ω手机耳机子额定载荷具备125mW推动软件。IC兼有6dB内部的固定的增加收益控制,也可再生利用对表面热敏热敏电阻放置增加收益控制(日前仅具备对表面热敏热敏电阻放置增加收益控制安卓的版本,各种安卓的版本需预设)。IC在另一音响频段内具备比较好的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tONജ,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兼有3D旋转状态,还可以在立体空间声苹果耳机子上成就3D旋转声的feel。HT97220再有兼有低音开展状态,可前提条件苹果耳机子频响因素,对另一频段的低音参与差异层度的升降开展,实现低音开展的特效。HT97230展示 无铅无卤QFN24L-PP芯片芯片封装,展示 QFN20L-PP芯片芯片封装的开发需求量。价格:¥ | 库存99999 |
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显著特点
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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. |