CXAR41181是立体声音频功率放大器。它能在每个信息通道中将2W连续的RMS功率传送至3Ω负载中。当传送1W至8Ω扬声器时，CXAR41181的失真度(THD+N)将小于0.04%。
• 负载为3Ω时
- VDD=5V 时, 2W/通道
- 3V时, 800mW/通道
• 内含Depop电路
• 低静态电流和关断电流
• 静音和关闭控制功能
• 热关闭保护
• 立体输入MUX
• BTL或SE模式
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[ CXAR41181 ]"
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产品概述 返回TOP
CXAR41181是立体声音频功率放大器。它能在每个信息通道中将2W连续的RMS功率传送至3Ω负载中。当传送1W至8Ω扬声器时，CXAR41181的失真度(THD+N)将小于0.04%。The CXAR41181 is a stereo audio power amplifier that delivering 2W of continuous RMS power per channel into 3-Ω loads. When driving 1W into 8-Ω speakers, the CXAR41181 has less than 0.04% THD+N across its specified frequency range. Included within this device is integrated de-pop circuitry that virtually eliminates transients that cause noise in the speakers. Amplifier gain is externally configured by means of two resistors per input channel and does not require external compensation for settings of 2 to 20 in BTL mode (1 to 10 in SE mode). An internal input MUX allows two sets of stereo inputs to the amplifier. In notebook applications, where internal speakers are driven as BTL and the line (often headphone drive) outputs are required to be SE, the CXAR41181automatically switches into SE mode when the SE/BTL inputs is activated. Consume only 7mA of supply current during normal operation, and the CXAR41181also features a shutdown function for power sensitive applications, holding the supply current at 1μA.
产品特点 返回TOP
• 负载为3Ω时
- VDD=5V 时, 2W/通道
- 3V时, 800mW/通道
• 内含Depop电路
• 低静态电流和关断电流
• 静音和关闭控制功能
• 热关闭保护
• 立体输入MUX
• BTL或SE模式
• 含散热垫TSSOP-24封装
• 符合RoHS规范及Pb-Free
z Output Power at 3Ω Load - 2W/ch at VDD=5V - 800mW/ch at 3V
z Low Supply Current and Shutdown Current
z Integrated Depop Circuit
z Mute and Shutdown Control Function
z Thermal Shutdown Protection
z Stereo Input MUX
z Bridge-Tied Load (BTL) or Single-Ended (SE) Modes.
z TSSOP-24 with Thermal Pad
z RoHS Compliant and 100% Lead (Pb)-Free
应用范围 返回TOP
• 笔记本电脑
• 多媒体显示器
• 数字收音机和便携式电视
z Notebook Computers
z Multimedia Monitors
z Digital Radios and Portable TVs
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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音频放大器> AB类 |
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|
Part Number |
remark |
Vin (V) |
Speaker (W) |
Speaker (Ω) |
Headphone |
No of Speaker Channel |
THD +N @ 1KHz (%) |
IQ (mA)(Typ) |
PSRR (dB) |
Package |
|
1 Watt Audio Power Amplifier |
2.5 ~ 5.5 |
1 |
8 |
N/A |
1 |
0.15 |
2.4 |
67 |
MSOP-8,TDFN-8 |
|
|
1.36-W Mono Fully Differential |
2.5 ~ 5.5 |
1.36 |
8 |
N/A |
1 |
0.1 |
4 |
80 |
MSOP-8,TDFN-8 |
|
|
2-W Stereo Audio Power Amplifier with Mute |
2.5 ~ 5.5 |
2 |
3 |
Yes |
2 |
0.4 |
8 |
58 |
TSSOP-24(FD) |
|
|
3W Mono Fully Differential |
2.5 ~ 5.5 |
3 |
3 |
N/A |
1 |
0.1 |
4 |
80 |
SOP-8(FD) |
|
