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HT8697 Datasheet(PDF) 1 Page - Jiaxing Heroic Technology Co.,Ltd.

Part # HT8697
Description  9.5W anti-shaving double channel AB/D class audio power amplifier
PDF  3 Pages
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Manufacturer  HEROIC [Jiaxing Heroic Technology Co.,Ltd.]
Direct Link  http://www.heroic.com.cn/en/index.asp
Logo HEROIC - Jiaxing Heroic Technology Co.,Ltd.

HT8697 Datasheet(HTML) 1 Page - Jiaxing Heroic Technology Co.,Ltd.

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HT8697
双声道音频功放
版权所有
©2016, 嘉兴禾润电子科技有限公司
-1-
7/2016 – V2.0
9.5W防削顶双声道AB/D类音频功率放大器
特点
・防削顶失真功能
(Anti-Clipping Function, ACF)
・免滤波器数字调制,直接驱动扬声器
・输出功率
2×9.5W@ Class D, 2×9.0W@Class AB
(VDD=8.5V, RL=4Ω, THD+N=10%,)
2×6.7W@ Class D or Class AB
(VDD=7.2V, RL=4Ω, THD+N=10%)
・过流保护功能
・过热保护功能
・欠压异常保护功能
・无铅无卤封装,
TSSOP20L-PP
应用
・蓝牙音箱
・便携式音箱
2.1声道小音箱
・扩音器
iphone/ipod/ipod docking
・拉杆音箱
・平板电脑,笔记本电脑
・便携式游戏机
・小尺寸
LCD电视/监视器
MP4, 导航仪
概述
HT8697是一款具有防削顶失真功能的,双声道
免 滤 波
D 类 音 频 功 率 放 大 器 。 在 VDD=8.5V 、
THD+N=10%、4Ω负载条件下,能连续输出2×9.5W
功率。在
AB类模式下,在VDD=8.5V、THD+N=10%、
4Ω负载下,能瞬间输出2×9.0W功率。
HT8697具有防削顶失真(ACF)输出控制功能,
可检测并抑制由于输入音乐、语音信号幅度过大所引
起的输出信号削顶失真(破音),显著提高音质,创
造舒适听音享受,并保护扬声器免受过载损坏。同时
芯片也具有
ACF-Off 模式可配置。
HT8697内部集成免滤波器数字调制技术,能够
直接驱动扬声器,并最大程度减小脉冲输出信号的失
真和噪音。输出无需滤波网络,极少的外部元器件节
省了系统空间和成本,是便携式应用的理想选择。
HT8697可实现AB类和D类的自由切换功能,在
受到
D类功放EMI干扰困扰时,可随时切换至AB类音
频功放模式。
此外,
HT8697内置的关断功能使待机电流最小
化,还集成了输出端过流保护、片内过温保护和电源
欠压异常保护等功能。
典型应用图


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