In view of the fact that the current trolley speakers are mostly powered by 12V lead-acid batteries, the output power of the speakers is difficult to be substantially improved due to the limitation of the power supply voltage. The terminal market is eager for audio amplifiers to break through the limitations of power supplies and provide enough output power for square dance speakers. Shenzhen Yongkang Technology Co., Ltd. launched the CS8672 built-in boost 32W mono D-class single-chip square dance lever speaker audio amplifier solution, providing the ultimate sound quality experience for square dance enthusiasts.
Brief introduction of CS8672
The CS8672C is a built-in BOOST boost module with a 32W mono Class R audio power amplifier circuit. The built-in high-power BOOST boost module provides up to 32W of continuous power for 4Ω load speakers in a two-cell lithium battery series or 12V power platform. It is an excellent power output platform for home audio woofer or mobile home audio. CS8672C eliminates the need for external heat sinks and simple peripheral settings, which can greatly improve production and processing efficiency. The CS8672C has built-in overcurrent protection, short-circuit protection and over-temperature protection to effectively protect the chip from damage under abnormal operating conditions.
The CS8672C is a slim TSSOP28-PP package that offers the following advantages over traditional applications.
Audio subsystem footprint is the smallest
Foot power output eliminates the need for an external heat sink
The one-stop solution for the audio subsystem with dual-cell lithium battery series power supply and lead-acid battery power supply can achieve an output power of up to 30W.
CS8672 indicator characteristics
â— Output power
PO at 10% THD+N, input voltage = 7.4V, PVcc=15V
RL = 4 Ω 28W (typical)
PO at 10% THD+N, input voltage = 12V, PVcc=16V
RL = 4 Ω 32W (typical)
â— Up to 75% efficiency without heat sink
â— Larger power supply voltage range of 6V~14V
â— The input voltage is connected to the two-cell battery in series, and the BOOST can be boosted up to 15V.
â— When the input voltage is 9~14V, BOOST can be boosted up to 16V.
â— Speaker protection
â— Output pin is convenient for wiring layout
â— Good short circuit protection and temperature protection with automatic recovery
â— Good distortion and anti-squeak function
â— Four-stage gain adjustable
â— Differential input
Application range
Square sound system
Home audio system
Typical application diagram
DEMO example
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