270mW Stereo Cap-Free Headphone Driver CXAR4177 CXAR4177A is a stereo, fixed gain, and cap-free headphone driver which is available in TQFN4x4 20-pin, TQFN3x3 16-pin (CXAR4177A) or TSSOP-16 package

   产品概述 返回TOPjEl嘉泰姆

The CXAR4177 CXAR4177A is a stereo, fixed gain, and cap-free headphone driver which is available in TQFN4x4 20-pin, TQFN3x3 16-pin (CXAR4177A) or TSSOP-16 package. Dual supply voltage provides higher efficiency and better power ripple rejection. The CXAR4177 CXAR4177A is designed with ground-reference output and no need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, PCB’s space, and component height. The built-in gain setting can minimize the external component counts and save the PCB space. High PSRR provides increased immunity to noise and RF rectification. In addition to these features, a fast start-up time and small package size make the CXAR4177 CXAR4177A an ideal choice for portable multimedia devices. Moreover, the CXAR4177 CXAR4177A is also equipped other features. For example, at THD+N=1%, it is capable of driving 200mW at VDD =3.3V, PVDD =5.0V into 16W. In addition, it provides thermal and short circuit protections.

   产品特点 返回TOPjEl嘉泰姆

· No Output Capacitor Required jEl嘉泰姆

· Dual Supply Voltage (PVDD>VDD) jEl嘉泰姆

– VDD =1.8 ~5.5V jEl嘉泰姆

– PVDD=2.2 ~ 5.5V jEl嘉泰姆

· Meeting VISTA Requirements jEl嘉泰姆

· Output Power at 1% THD+N jEl嘉泰姆

-200mW, at VDD =3.3V, PVDD =5.0V, RL =16W jEl嘉泰姆

-55mW, at VDD =1.8V, PVDD =3.0V, RL =16W at 10% THD+N jEl嘉泰姆

-270mW, at VDD =3.3V, PVDD =5.0V, RL =16W jEl嘉泰姆

-70mW, at VDD =1.8V, PVDD =3.0V, RL =16W jEl嘉泰姆

· Less External Components Required jEl嘉泰姆

· High PSRR: 80dB at 217Hz jEl嘉泰姆

· Fast Start-Up Time : 120ms jEl嘉泰姆

· Short-Circuit and Thermal Protection jEl嘉泰姆

· Surface-Mount Package jEl嘉泰姆

– TQFN4x4-20B (with Enhanced Thermal Pad) jEl嘉泰姆

– TSSOP-16 jEl嘉泰姆

– TQFN3x3-16 (with Enhanced Thermal Pad) (for CXAR4177A) jEl嘉泰姆

· Lead Free and Green Devices Available (RoHS Compliant)jEl嘉泰姆

   应用范围 返回TOPjEl嘉泰姆

· Headsets jEl嘉泰姆

· PDAs jEl嘉泰姆

· Portable Multimedia Devices jEl嘉泰姆

· NotebooksjEl嘉泰姆

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