产品概述
CXAR41301是一款内置自适应升压的立体声D类 音 频 功 率 放 大 器 , 由 锂 电 池 供 电 升 压 至 VPOUT=8.3V时, THD+N=1%、1kHz信号条件 下,能连续输出2×6.8W功率(4Ω负载);另 外,其还支持AB类模式。 CXAR41301内置G类升压,可任意设置最大升压值, 以满足不同的输出功率需求。该升压在小音乐 信号时不升压,仅当功率较大时工作。其可大 幅提高系统效率,延长电池续航时间。 CXAR41301具有可任意配置的限幅(Limiter)功能。 限幅功能开启后,即使输入信号很大,音乐输 出也能被限制在指定的功率和THD+N之内,满 足不同音质体验和保护喇叭的需求。 CXAR41301还具有自动限温控制(TFB)功能,在 高功率输出、高环境温度、AB类模式低效率等 情况下导致芯片片内温度较高时,芯片能自动 降低系统增益,避免芯片进入过温关断保护模 式,在保证音乐品质的前提下显著提升音乐峰 值功率。 此外,CXAR41301内部集成免滤波器调制技术,能 够直接驱动扬声器,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。
The CXAR41301 is a stereo Class D audio amplifier that drives up to continuous 2×6.8W (1% THD+N, boosted to 8.3V) into 4ohm speaker. It also integrates Class AB amplifier to avoid EMI. CXAR41301 built-in Class G boost converter supports adjustable boost voltages. The boost converter is automatically active only when a higher audio output power is required, which will significantly improve the efficiency and extends the playing time in battery supply applications. CXAR41301 integrates Limiter function. When it is active, the output music can be limited below a certain power and THD+N. This will allow different demands in sound performance and prevent speakers from damage. The Thermal Foldback (TFB) function is designed to protect the CXAR41301 from excessive die temperature in case of the device being operated beyond the recommended temperature or power limit, or with a weaker thermal system than recommended. The TFB works by reducing the on-die power dissipation by reducing Gain if the temperature trig point is exceeded, so that the peak audio power is significantly increased. CXAR41301 has a filter-less modulation circuit which can directly drive speakers. CXAR41301 can be shut down so that the power consumption can be minimized. As for protection function, over current protection function for speaker output terminals, over temperature protection function and low supply voltage malfunction preventing function are also prepared.
产品特点 返回TOP7Vt嘉泰姆
・可任意配置的限幅功能7Vt嘉泰姆
-自由配置音频限制幅度,使输出音频信号限制在 固定失真水平内7Vt嘉泰姆
・内置自动限温控制功能7Vt嘉泰姆
-适应不同散热条件,避免出现过温关断现象7Vt嘉泰姆
・高效自适应G类升压功能,有效延长播放时间7Vt嘉泰姆
-可调节最大限流值,有效防止电池拉死7Vt嘉泰姆
-升压值可调7Vt嘉泰姆
・支持AB类与D类切换7Vt嘉泰姆
・THD+N: 0.04%(RL=4Ω, fIN=1kHz, Po=2×1.0W)7Vt嘉泰姆
・低静态电流:7mA, 3.7V7Vt嘉泰姆
・输出功率(VBAT=4.2V, fIN=1kHz, RL=4Ω)7Vt嘉泰姆
2×6.8W (VPOUT=8.3V, THD+N= 1%, 连续输出)7Vt嘉泰姆
2×8.4W (VPOUT=8.3V, THD+N = 10%, 瞬态输 出)7Vt嘉泰姆
・VBAT供电范围:2.8V至5.5V7Vt嘉泰姆
・三种增益选择:21dB, 25.5dB, 30dB7Vt嘉泰姆
・免滤波器数字调制,直接驱动扬声器7Vt嘉泰姆
・保护功能:过流/过热/欠压异常保护功能7Vt嘉泰姆
・无铅无卤封装,TSSOP24L-PP7Vt嘉泰姆
・Flexible Limiter Function adjusted by external resistor so that the output music is limited under a preset THD+N and power7Vt嘉泰姆
・Integrated Thermal Foldback (TFB) Function that significantly increases the peak audio power7Vt嘉泰姆
・Integrated adaptive class G Boost Converter that extends the play time in battery supply applications7Vt嘉泰姆
-Adjustable switch peak current limit to avoid overpulling on battery current -Adjustable max boost voltage7Vt嘉泰姆
・Both Class D and Class AB is available7Vt嘉泰姆
・THD+N: 0.04% (RL=4Ω, fIN=1kHz, Po=2×1.0W)7Vt嘉泰姆
・Low Quiescent Current:7mA, 3.7V7Vt嘉泰姆
・Output Power (VBAT=4.2V, fIN = 1kHz, RL=4Ω7Vt嘉泰姆
2×6.8W (continuous power, VPOUT=8.3V, THD+N = 1%)7Vt嘉泰姆
2×8.4W (instantaneous power, VPOUT=8.3V, THD+N = 10%)7Vt嘉泰姆
・Power Supply VBAT: 2.8V~5.5V7Vt嘉泰姆
・Multiple Gain Available: 21dB, 25.5dB, 30dB7Vt嘉泰姆
・Filter-less Modulation7Vt嘉泰姆
・Thermal/Low voltage malfunction prevention function with auto recovery7Vt嘉泰姆
・Pb-free Packages, TSSOP24L-PP7Vt嘉泰姆
应用范围 返回TOP7Vt嘉泰姆
・智能音响7Vt嘉泰姆
・无线音响7Vt嘉泰姆
・便携式音箱7Vt嘉泰姆
・2.1声道小音箱7Vt嘉泰姆
・拉杆音箱7Vt嘉泰姆
・便携式游戏机7Vt嘉泰姆
・Smart Speakers7Vt嘉泰姆
・Wireless Speakers7Vt嘉泰姆
・Portable Speakers7Vt嘉泰姆
・2.1Channel Speakers7Vt嘉泰姆
・Megaphone7Vt嘉泰姆
・Portable Gamers7Vt嘉泰姆
技术规格书(产品PDF) 返回TOP 7Vt嘉泰姆
需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!7Vt嘉泰姆
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产品封装图 返回TOP7Vt嘉泰姆
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电路原理图 返回TOP7Vt嘉泰姆
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相关芯片选择指南 返回TOP 更多相关产品.....7Vt嘉泰姆
单声道D类音频功率放大器内置升压音频功放 |
产品型号 |
通道 |
工作电压 |
输出功率 |
增益 |
IQ |
效率 |
封装 |
备注 |
CXAR41299 |
单声道 |
2.8V至5.0V |
7.0 W |
30dB |
4.0mA |
85% |
TSSOP20L |
|
CXAR41300 |
单声道 |
2.8V至5.0V |
8.0 W |
30dB |
8.0mA |
85% |
TSSOP28L |
|
CXAR41301 |
双声道 |
2.8V至5.5V |
2×8.0W |
30dB |
7mA |
85% |
TSSOP24L |
|
CXAR41302 |
单声道 |
2.7V至5.5V |
5.2W |
28dB |
3mA |
85% |
SOP16L-PP, QFN16L-PP |
CXAR41303 |
单声道 |
2.7V至5.5V |
5.2W |
28dB |
3mA |
84% |
SOP10L |
|
CXAR41304 |
双声道 |
2.7V至5.5V |
2*4.5W |
28dB |
7mA |
81% |
TSSOP24 |
|
CXAR41305 |
单声道 |
2.5V至5.5V |
7.0W |
28dB |
7mA |
81% |
SOP8L-PP |
|
CXAR41306 |
单声道 |
2.5V至5.5V |
11W |
30dB |
3mA |
85% |
SOP8L |
|
CXAR41307 |
单声道 |
2.5V至5.5V |
9W |
30dB |
3mA |
85% |
SOP16L-PP |
AB/D类切换内置BOOST升压模块的F类音 频功率放大器 |
CXAR41308 |
双声道 |
2.5V至5.5V |
2×4.75W |
30dB |
3mA |
85% |
TSSOP20L |
AB/D类切换内置BOOST升压/防破音功能的2×4.75W立体声D类音频功率放大器 |
CXAR41309 |
双声道 |
2.5V至5.5V |
2×5.5W |
30dB |
3mA |
85% |
SOP16L |
AB/D类切换内置BOOST升压的2×5.5W立体声音频功率放大器 |
CXAR41310 |
单声道 |
2.5V至5.5V |
5.2W |
28dB |
3mA |
84% |
SOP10L |
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单声道高保真音频功率放大器 |
数字音频功放 |
产品型号 |
通道 |
工作电压 |
输出功率 |
增益 |
IQ |
效率 |
封装 |
备注 |
CXAR41311 |
双声道 |
4.5V-26V |
2×40W |
30dB |
3mA |
85% |
QFN36 |
30W立体声D类I2S输入音频功放可编程功率限制,以及AGC功能 |
CXAR41312 |
单声道 |
3.0-3.6V |
4.7W |
30dB |
3mA |
85% |
TSSOP20, QFN20 |
2.8W I2S 输入单声道D类音频功率放大器 |
耳机功放 |
CXAR41313 |
双声道 |
4.5V-26V |
2×30W |
30dB |
3mA |
90% |
QFN36 |
33mW免输出电容立体声耳机放大器 |
CXAR41314 |
双声道 |
2.5V至5.2V |
125mW/32Ω |
30dB |
3mA |
90% |
QFN16 |
125mW免输出耦合电容的立体声线路驱动器/耳机放大器 |
CXAR41315 |
双声道 |
1.65V至4.8V |
125mW/32Ω |
30dB |
3mA |
90% |
QFN16 |
125mW免输出耦合电容的立体声线路驱动器/耳机放大器 |
CXAR41316 |
双声道 |
2.5V至5.2V |
125mW/32Ω |
30dB |
3mA |
90% |
QFN24L |
带有3D环绕和低音增强的125mW免输出耦合电容 立体声线路驱动器/耳机放大器 |