Dual 2.1W Audio Power Amplifier Plus Stereo Headphone 3D Enhancement CXAR41202 has two separate HP (headphone) enable inputs, each having different logic level thresholds

   产品概述 返回TOP3Ox嘉泰姆

The CXAR41202 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.1W into a 4Ω load or 2.5W into a 3Ω load with typically 1% THD+N.3Ox嘉泰姆

The CXAR41202 has two separate HP (headphone) enable inputs, each having different logic level thresholds. Either HP enable input activates the single-ended headphone mode and disables the BTL output mode. The HP Sense input is for use with a normal stereo headphone jack. The remaining input, HP Logic, accepts standard logic level thresholds.3Ox嘉泰姆

To simplify audio system design, the CXAR41202 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.3Ox嘉泰姆

The CXAR41202 features a low power consumption shutdown mode and thermal shutdown protection. It also utilizes circuitry to reduce “pop/click”during device turn-on.3Ox嘉泰姆

The CXAR41202 is available in Green TQFN-4×4-24L package. It operates over an ambient temperature range of -40℃</span> to +85℃</span>.3Ox嘉泰姆

   产品特点 返回TOP3Ox嘉泰姆

   • P_O at 1% THD+N, V_CC = 5V
    R_L = 3Ω    2.5W (TYP)
    R_L = 4Ω    2.1W (TYP)
    R_L = 8Ω    1.3W (TYP)
• Low Shutdown Current 0.02μA
• Operation Supply Voltage 2.8V to 5.5V
• PSRR at 217Hz 80dB (TYP)
• 3D Enhancement
• Selectable Headphone Enable Modes
• Stereo Headphone Amplifier Mode
• Improved “Pop/Click”&nbsp;Suppression Circuitry
• Thermal Shutdown Protection Circuitry
• -40℃</span> to +85℃</span> Operating Temperature Range
• Available in Green TQFN-4×4-24L Package3Ox嘉泰姆

   应用范围 返回TOP3Ox嘉泰姆

Cell Phones, PDAs, MP4s, PMPs
Portable and Desktop Computers
Desktops Audio System
Multimedia Monitors3Ox嘉泰姆

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