目录

1.产品概述       2.产品特点     9Rl嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）9Rl嘉泰姆

5.产品封装       6.电路原理图  9Rl嘉泰姆

7.相关产品9Rl嘉泰姆

   产品概述 返回TOP9Rl嘉泰姆

The CXAR41189 stereo headphone amplifier is designed for portable equipment where board space is at a premium. The CXAR41189 uses capless architecture to produce a ground-referenced output from a single power supply, eliminating the need for large DC-blocking capacitors for output, saving cost, board space, and component height. Additionally, for CXAR41189B, the gain is set internally (-1.5V/V), further reducing component count. For CXAR41189A, the gain can be adjusted by external feedback resistors.

The CXAR41189 delivers up to 88mW per channel into a 32Ω load and has low 0.034% THD+N. A -70dB power supply rejection ratio (PSRR) at 217Hz allows this device to operate from noisy digital supplies without an additional linear regulator. Comprehensive click-and-pop circuitry suppresses audible clicks and pops on startup and shutdown.9Rl嘉泰姆

The CXAR41189 operates from a single 2.7V to 5.5V supply, consumes only 2.7mA supply current, has short-circuit and thermal-overload protections, and is specified over the extended -40℃ to +85℃ temperature range. The CXAR41189 is available in a Green TQFN-3×3-12L package.9Rl嘉泰姆

   产品特点 返回TOP9Rl嘉泰姆

• CXAR41189A: External Feedback Gain Network9Rl嘉泰姆
    CXAR41189B: Fixed -1.5V/V Gain9Rl嘉泰姆
• No Bulky DC-Blocking Capacitors Required9Rl嘉泰姆
• Ground-Referenced Outputs Eliminate DC-Bias9Rl嘉泰姆
    Voltage on Headphone Ground Pin9Rl嘉泰姆
• No Degradation of Low-Frequency Response Due9Rl嘉泰姆
    to Output Capacitors9Rl嘉泰姆
• 88mW into 32Ω Load from 5V Power Supply at9Rl嘉泰姆
    THD+N = 0.1% (TYP, per Channel)9Rl嘉泰姆
• Low 0.034% THD+N9Rl嘉泰姆
• High PSRR (-70dB at 217Hz)9Rl嘉泰姆
• Integrated Click-and-Pop Suppression9Rl嘉泰姆
• 2.7V to 5.5V Single Supply Operation9Rl嘉泰姆
• Low Quiescent Current (2.7mA at V_DD = 5V)9Rl嘉泰姆
• Shutdown Control9Rl嘉泰姆
• Short-Circuit and Thermal-Overload Protections9Rl嘉泰姆
• Undervoltage Lockout Function9Rl嘉泰姆
• -40℃ to +85℃ Operating Temperature Range9Rl嘉泰姆
• Available in Green TQFN-3×3-12L Package9Rl嘉泰姆

   应用范围 返回TOP9Rl嘉泰姆

Notebook PCs9Rl嘉泰姆
Cellular Phones9Rl嘉泰姆
PDAs9Rl嘉泰姆
MP3 Players9Rl嘉泰姆
Smart Phones9Rl嘉泰姆
Portable Audio Equipment9Rl嘉泰姆

   技术规格书（产品PDF) 返回TOP 9Rl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！9Rl嘉泰姆

 9Rl嘉泰姆

产品封装图 返回TOP9Rl嘉泰姆

9Rl嘉泰姆

电路原理图 返回TOP9Rl嘉泰姆

9Rl嘉泰姆

相关芯片选择指南 返回TOP                            更多同类产品......