目录

1.产品概述       2.产品特点     rP9嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）rP9嘉泰姆

5.产品封装       6.电路原理图  rP9嘉泰姆

7.相关产品rP9嘉泰姆

   产品概述 返回TOPrP9嘉泰姆

The CXAR41187 stereo headphone amplifier is designed for portable equipment where board space is at a premium. The CXAR41187 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 CXAR41187B and CXAR41187C, the gain is set internally (-2V/V or -1.5V/V), further reducing component count. For CXAR41187A, the gain can be adjusted by external feedback resistors.

The CXAR41187 delivers up to 95mW per channel into a 32Ω load and has low 0.01% THD+N. A -90dB 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. Independent left/right, low-power shutdown controls make it possible to optimize power savings in mixed-mode, mono/stereo applications.rP9嘉泰姆

The CXAR41187 operates from a single 2.7V to 5.5V supply, consumes only 5.6mA supply current, has short-circuit and thermal-overload protections, and is specified over the extended -40℃ to +85℃ temperature range. The CXAR41187 is available in a Green TQFN-4×4-20L package.rP9嘉泰姆

   产品特点 返回TOPrP9嘉泰姆

   • CXAR41187A: External Feedback Gain NetworkrP9嘉泰姆
   CXAR41187B: Fixed -2V/V GainrP9嘉泰姆
   CXAR41187C: Fixed -1.5V/V GainrP9嘉泰姆
• No Bulky DC-Blocking Capacitors RequiredrP9嘉泰姆
• Ground-Referenced Outputs Eliminate DC-BiasrP9嘉泰姆
   Voltage on Headphone Ground PinrP9嘉泰姆
• No Degradation of Low-Frequency Response DuerP9嘉泰姆
   to Output CapacitorsrP9嘉泰姆
• 95mW into 32Ω Load from 5V Power Supply atrP9嘉泰姆
   THD+N = 0.1% (TYP, per Channel)rP9嘉泰姆
• Low 0.01% THD+NrP9嘉泰姆
• High PSRR (-90dB at 217Hz)rP9嘉泰姆
• Integrated Click-and-Pop SuppressionrP9嘉泰姆
• 2.7V to 5.5V Single Supply OperationrP9嘉泰姆
• Low Quiescent Current (5.6mA at V_DD = 5V)rP9嘉泰姆
• Independent Left/Right, Low-PowerrP9嘉泰姆
   Shutdown ControlsrP9嘉泰姆
• Short-Circuit and Thermal-Overload ProtectionsrP9嘉泰姆
• Undervoltage Lockout FunctionrP9嘉泰姆
• -40℃ to +85℃ Operating Temperature RangerP9嘉泰姆
• Available in Green TQFN-4×4-20L PackagerP9嘉泰姆

   应用范围 返回TOPrP9嘉泰姆

 Notebook PCsrP9嘉泰姆
Cellular PhonesrP9嘉泰姆
PDAsrP9嘉泰姆
MP3 PlayersrP9嘉泰姆
Smart PhonesrP9嘉泰姆
Portable Audio EquipmentrP9嘉泰姆

   技术规格书（产品PDF) 返回TOP rP9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！rP9嘉泰姆

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产品封装图 返回TOPrP9嘉泰姆

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电路原理图 返回TOPrP9嘉泰姆

rP9嘉泰姆

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