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HT8692SP Marking, HT8692SP Datasheet(PDF) 1 Page - Jiaxing Heroic Technology Co.,Ltd.

Part # HT8692SP
Description  6.5W Class D Audio Power Amplifier with BOOST Boost and Anti-Broken
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.

HT8692SP Datasheet(HTML) 1 Page - Jiaxing Heroic Technology Co.,Ltd.

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HT8692
D 类音频功率放大器
版权所有
©2015, 嘉兴禾润电子科技有限公司
-1-
01/2015 – V1.0
内置BOOST升压和防破音功能的6.5W 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
6.5 W(VBAT=4.2V, PVDD = 7.0V, RL=4Ω,
THD+N=10%)
8.0 W(VBAT=4.2V, PVDD = 7.0V, RL=3Ω,
THD+N=10%)
3.5 W(VBAT=4.2V, PVDD = 7.0V, RL=8Ω,
THD+N=10%)
・电源
-升压输入VBAT:2.5V至5.5V
-升压输出PVDD:VBAT至7.0V
BOOST输出电压可调
AB/D类可切换
・保护功能
:过流/过热/欠压异常保护功能
・无铅封装,
SOP16L-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
MP4, 导航仪
・平板电脑,笔记本电脑
・智能手机
・小尺寸
LCD电视/监视器
・便携式游戏机
概述
HT8692是一款内置BOOST升压模块的F类音
频功率放大器。内置的
BOOST升压模块可通过外置
电阻调节升压值,即使是锂电池供电,在升压至
7.0V
时,
10% THD+N,4Ω负载条件下,能连续输出6.5 W
功率。其支持外部设置调节
BOOST输出电压。
HT8692的最大特点是防削顶失真(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),也能自
适应地防止在
BOOST升压电压下降所造成的输出削
顶,显著提高音质,创造非常舒适的听音享受,并保
护扬声器免受过载损坏。同时芯片具有
ACF-Off 模
式。
HT8692具有AB类和D类的自由切换功能,在受
D类功放EMI干扰困扰时,可随时切换至AB类音频
功放模式。
HT8692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。
此外,
HT8692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
VBAT
IN+
CIN
CIN
HT8692
IN-
0.1uF
1KO
1µF
10 µF
470 F
µ
1µF
10 µF
470 F
µ
0.1uF
Lx
Dx
PVDD
LX
FB
MUCH
CTRL
ABD
AGND
PGND
DGND
OUT+
OUT-
Rd1
Rd2
3.3nF
10nF
RIN
RIN
56KΩ
56KΩ
2
5,6
9
4
13
14
10
12
7,8
11
1
15
16
3


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