Microsoft Word - HT6871_Brief_V1.0.doc

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2 3.4W 低 EMI 防削顶单声道免滤波 D 类音频功率放大器特点防削顶失真功能 (Anti-Clipping Function, ACF) 优异的全带宽 EMI 抑制性能免滤波器数字调制, 直接驱动扬声器输出功率 (WLCSP-9) 3.4 W (V DD =5.0V, R L =4Ω, THD+N=10%) 输出功率 () 2.5 W (V DD =5.0V, R L =4Ω, THD+N=10%) 高效率 91% (V DD =5.0V, R L =8Ω, P O =1W, WLCSP-9) 88% (V DD =3.6V, R L =8Ω, P O =0.6W, WLCSP-9) 89% (V DD =5.0V, R L =8Ω, P O =1W, ) 卓越的咔嗒 - 噼噗 (Click-Pop) 噪声抑制性能高信噪比 SNR:95dB (V DD =5V, Av=18dB) 低关断电流 :0.01µA 过流保护功能过热保护功能欠压异常保护功能无铅封装, 和 WLCSP-9 应用便携式音箱 USB 音箱 iphone/ipod/mp3 docking 数码相框 PMP/MP4/MP5 播放器导航仪 GPS 便携式游戏机手机掌上电脑 PDAs 概述是一款低 EMI 的, 防削顶失真的, 单声道免滤波 D 类音频功率放大器在 5V 电源,10% THD+N,4Ω 负载条件下, 输出 3.4W 功率 (WLCSP-9 封装 ), 在各类音频终端应用中维持高效率并提供 AB 类放大器的性能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电池应用中由电源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针对不同应用需求, 防削顶具有 ACF-1 和 ACF-2 两种模式, 分别对应约 3% 和 10% 最大 THD+N, 同时芯片具有 ACF-Off 模式具有独有的电磁辐射 (EMI) 抑制技术和优异的全带宽低辐射性能, 辐射水平在不加任何辅助设计时仍远在 FCC Part15 Class B 标准之下, 不仅避免了干扰其他敏感电路还降低了系统设计难度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, 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 C S 1µF 6 VDD 单端输入 C IN 33nF C IN 33nF R IN 12k R IN 12k 4 3 IN+ OUT- IN- 前置放大数字 PWM 调制器 EMI 抑制 + 输出驱动 OUT BYPASS S1 C B 1µF 1 CTRL ACF 数字控制关断控制载波发生器 OCP OTP UVLO R PD GND 7 版权所有 2011, 嘉兴禾润电子科技有限公司 -2-03/2011 V1.0

3 引脚信息 CTRL BYPASS IN- OUT- GND VDD IN+ AGND IN- VDD BYPASS CTRL 1 2 IN+ 4 5 OUT+ OUT+ PGND OUT- 3 8 引脚 SOP 顶视图 A B C 9 焊球 WLCSP 底视图订购信息 H T X X 包装和供货形式封装形式产品型号封装形式顶面标记工作温度范围包装和供货形式 MR MT CR WLCSP-9 注 1:WXYZ/UVWXYZ 为内部生产跟踪随机编码 6871 WXYZ *1 ( 扩展工业级 ) ( 扩展工业级 ) ( 扩展工业级 ) 卷带装 2500 片 / 盘管装 100 片 / 管卷带装 3000 片 / 盘嘉兴禾润电子科技有限公司 Jiaxing Heroic Technology Co., Ltd. 地址 : 浙江省嘉兴市亚太路 JRC 大厦 A 座三层电话 : 传真 : sales@heroic.com.cn 网址 : 版权所有 2011, 嘉兴禾润电子科技有限公司 -3-03/2011 V1.0

4 3.4W Low-EMI Anti-Clipping Filter-Less Mono Class D Audio Power Amplifier FEATURES Anti-Clipping Function, ACF Excellent EMI Suppression Performance Filter-less Modulation, Eliminating Output Filter Output Power(WLCSP-9) 3.4 W (V DD =5.0V, R L =4Ω, THD+N=10%) Output Power() 2.5 W (V DD =5.0V, R L =4Ω, THD+N=10%) High Efficiency 91% (V DD =5.0V, R L =8Ω, P O =1W, WLCSP-9) 88% (V DD =3.6V, R L =8Ω, P O =0.6W, WLCSP-9) 89% (V DD =5.0V, R L =8Ω, P O =1W, ) Excellent Click-Pop Noise Reduction Function High SNR:95dB (V DD =5V, Av=18dB) Low Shutdown Current:0.01µA Over-Current Protection Function Thermal Protection Function Low Voltage Malfunction Prevention Function Pb-Free Packages, or WLCSP-9 APPLICATIONS Portable Speakers USB Speakers iphone/ipod, MP3/4 docking PSP PMP/MP4/MP5 GPS Digital Photo Frame Mobile Phones PDAs GENERAL DESCRIPTION is a low-emi, Anti-Clipping, filter-less, monaural Class D power amplifier with an output power of 3.4W (WLCSP-9 Packages). It has a high efficiency for various applications with Class AB amplifier performance. features Anti-Clipping Function (ACF) which detects and suppresses output signal clippings due to the over level inputs. ACF function also can adapt the output clippings caused by power supply voltage down in battery applications. It improves acoustical quality considerably, gives great listening enjoyment, and prevents speaker from overload damaging. According to different application requirements, two modes of ACF-1 and ACF-2 could be selected to achieve a maximal THD+N of 3% and 10% respectively. has excellent EMI radiation suppression characteristics. The radiation level is well below FCC Part15 Class B standards without any additive design. It keeps from interference with other EMI sensitive circuits, simplifies system design and lowers system cost. has a filter-less modulation circuit which directly drives speakers, realizes highest standard low distortion and low noise characteristics among digital amplifier ICs for mobile use. Thanks to filter-less, circuit design with fewer external parts can be made in portable applications. has shutdown mode, over-current protection, over-temperature protection and low supply voltage malfunction preventing function. Copyright 2011, Jiaxing Heroic Technology Co., Ltd -4- Mar V1.0

6 ORDERING IMFORMATION H T X X Part Number Package Type Marking Operating Temperature Range Shipping Package Package Type MOQ/Shipping Package MR MT CR WLCSP WXYZ *1 (Extended Temp.) (Extended Temp.) (Extended Temp.) Paper bags 2500PCS/Plate Tubes 100PCS/Tube Paper bags 3000PCS/Plate Note *1 :WXYZ/UVWXYZ is the production track code. Jiaxing Heroic Technology Corporation, Limited Add: A 3 rd floor, JRC Building, Yatai Road, Jiaxing, Zhejiang Province Tel: Fax: Hsales@heroic.com.cn Web: Hwww.heroic.com.cn Copyright 2011, Jiaxing Heroic Technology Co., Ltd -6- Mar V1.0

Microsoft Word - HT6872_Datasheet_CN_V0.3.doc

Microsoft Word - HT6872_Datasheet_CN_V0.3.doc 4.7W 防削顶单声道 D 类音频功率放大器 HT6872 特点防削顶失真功能 (Anti-Clipping Function, ACF) 优异的全带宽 EMI 抑制性能免滤波器数字调制, 直接驱动扬声器输出功率.40W (V DD =3.6V, R L =4Ω, THD+N=0%) 2.82W (V DD =5.0V, R L =4Ω, THD+N=0%) 4.7W (V DD =6.5V,