基于TA7376高保真蓝牙耳机的设计

Design of Bluetooth Headset Based on TA7376 High-fidelity

头戴式耳机采用有线连接的方式使得耳机的应用场合受到限制。另外,对于追求音乐品质的用户来讲,传统的头戴式耳机存在低频音域动态响应慢、音感体验度较差等方面的不足。文章采用Broadcom公司的BC358329蓝牙通信芯片替代耳机线有线通信的方式,在运动场合,如跑步机上可以获得更好的自由,使用TA7376作为音频功放,通过反相合成及内藏矩阵环绕声电路的方式获得立体声效果,并使得蓝牙耳机的音域范围得到显著提升。

In the way of wired connection, the headset is restricted in the application situation.In addition,the pursuit of quality music users,the traditional headset has low frequency range of slow dynamic response and sound experience poor etc.The paper used Broadcom BC358329 Bluetooth communication chip to replace the wired communication mode,tt can obtain better experience in the sports occasions such as on a treadmill,using TA7376 as an audio amplifier,by inverse synthesis and inside matrix surround circuit way to obtain stereo effect,the Bluetooth headset range had been significantly improved.