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HT8310 Marking, HT8310SPR Datasheet(PDF) 1 Page - Jiaxing Heroic Technology Co.,Ltd.

Part # HT8310SPR
Description  Built-in high efficiency adaptive charge pump boost, anti-shaving distortion, D/AB switching
PDF  4 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.

HT8310SPR Datasheet(HTML) 1 Page - Jiaxing Heroic Technology Co.,Ltd.

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HT8310
内置电荷泵升压音频功放
版权所有
©2018, 嘉兴禾润电子科技有限公司
-1-
09/2018 – V0.5
内置高效率自适应电荷泵升压,防削顶失真功能
D/AB切换的
5.2W单声道音频功率放大器
特点
4种防削顶失真功能(Anti-Clipping Function, ACF)
・自适应电荷泵升压功能
・内部固定
28dB增益
・输出功率
5.2W (VBAT=4.2V, RL=4Ω, THD+N=10%)
4.0W (VBAT=3.7V, RL=4Ω, THD+N=10%)
3.0W (VBAT=3.3V, RL=4Ω, THD+N=10%)
・效率
84% (VBAT=3.7V, RL=4Ω, 0.4W)
75% (VBAT=3.7V, RL=4Ω, 2W)
・电源
-升压输入VBAT:2.7V至5.5V
-升压输出CPOUT:6.4V
・静态工作电流:
3mA
・关断电流:
<1uA
AB/D类可切换
・免滤波器数字调制,直接驱动扬声器
・保护功能
:过流/过热/欠压异常保护功能
・无铅封装,
SOP16L-PP, QFN16L-PP
应用
・智能音响
・无线音响
・便携式音频设备
・智能手机
概述
HT8310 是 一 款 D 类 音 频 功 率 放 大 器 , 在
VBAT=4.2V、THD+N=10%,4Ω负载条件下能连续输
5.2W功率。该D类功放的电源电压由内置的自适应
电荷泵升压模块提供。该升压模块在低功率时不升
压,可有效提升电池的播放时间。
HT8310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。其具有
4种不同的ACF模式,可针对
不同应用场合。同时芯片还具有
ACF-Off 模式。
HT8310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(此时电荷泵升压功能关闭)
HT8310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,
HT8310内部固定28dB增益,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
2
3
CP
CN
VBAT
CFLY 4.7uF
1uF
10uF
220uF
PVBAT
AVBAT
IN-
CIN
CIN
10
OUT+
OUT-
15
12
IN+
9
RIN
RIN
PVDD
14
CPOUT
16
1uF
10uF
220uF
1uF
10R
1
8
0-GND
CGND AGND
PGND
4
5
13
ACF
6
ACF = AVBAT, ACF disabled
Otherwise, ACF enabled
CTRL
7
CTRL = L, Shutdown
CTRL = 1.1-1.5V, Class AB
CTRL > 1.8V, Class D
11
BYPASS
1uF


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