2x20W Stereo Class-D Audio Amplifier with Power Limit CXAR41247 CXAR41248 is a high efficiency stereo class-D audio amplifier with adjustable power limit function. The loudspeaker driver operates from

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     The CXAR41247 CXAR41248 is a high efficiency stereo class-D audio amplifier with adjustable power limit function. The loudspeaker driver operates from 4.5V~26V supply voltage and analog circuit operates at 5V supply voltage. It can deliver 20W/CH output power into 8Ω loudspeaker within 1% THD+N at 24V supply voltage and without external heat sink when playing music.CXAR41247 CXAR41248 provides parallel BTL (Mono)application, and it can deliver 40W into 4Ω loudspeaker at 24V supply voltage. The adjustable power limit function allows user to set a voltage rail lower than half of 5V to limit the amount of current through the speaker. Output DC detection prevents speaker damage from long-time current stress. CXAR41247 CXAR41248 provides superior EMC performance for filter-free application. The output short circuit and over temperature protection include auto-recovery feature.

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Single supply voltage 4.5V ~ 26V for loudspeaker driver Built-in LDO output 5V for others B1f嘉泰姆

Loudspeaker power from 24V supply BTL Mode: 20W/CH into 8Ω @<1% THD+N PBTL Mode: 40W/CH into 4Ω @<10% THD+N B1f嘉泰姆

Loudspeaker power from 12V supply BTL Mode: 10W/CH into 8Ω @10% THD+N B1f嘉泰姆

88% efficient Class-D operation eliminates need for heat sink
Differential inputs B1f嘉泰姆

Four selectable, fixed gain settings B1f嘉泰姆

Internal oscillator B1f嘉泰姆

Short-Circuit protection with auto recovery option B1f嘉泰姆

Under-Voltage detection B1f嘉泰姆

Over-Voltage protection B1f嘉泰姆

Pop noise and click noise reduction B1f嘉泰姆

Adjustable power limit function for speaker protection B1f嘉泰姆

Output DC detection for speaker protection B1f嘉泰姆

Filter-Free operation B1f嘉泰姆

Over temperature protection with auto recovery B1f嘉泰姆

Superior EMC performanceB1f嘉泰姆

   应用范围 返回TOPB1f嘉泰姆

TV audio B1f嘉泰姆

Boom-Box B1f嘉泰姆

Powered speaker B1f嘉泰姆

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Consumer Audio EquipmentB1f嘉泰姆

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