
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为差分键入、可立即输入打印打印输出的新线路带动器/头戴式头戴耳机变小器。5V用电时,电子元配件为1kΩ根据出示3VRMS输入打印打印输出带动;3.3V用电时,为600Ω根据出示2VRMS输入打印打印输出带动。5V用电时,电子元配件为32Ω头戴式头戴耳机根据出示125mW带动。IC具备6dB内控不变增加收益控制,也可再生利用外表阻值安装增加收益控制(现如今仅出示外表阻值安装增加收益控制新版本信息,另一个新版本信息需定购)。IC在整音响频段内出示出众的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享有3D围绕声模试,就可以在三维立体声手机头戴耳机上创建3D围绕声声的感。HT97220还有享有低音改善模试,可依照手机头戴耳机频响特征参数,对另一频段的低音使用与众不同方面的升降改善,达成低音改善的感觉。HT97230给出无铅无卤QFN24L-PP打包打包封装,给出QFN20L-PP打包打包封装的环保定制家具消费需求。价格:¥ | 库存99999 |
规模:
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共同点
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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. |