In view of the fact that the current drawbar speakers are mostly powered by 12V lead-acid batteries, it is difficult for the output power of the speakers to be substantially improved due to the limitation of the power supply voltage. The end market is eager for the audio power amplifier to break through the limitation of the power supply and provide sufficient output power for the square dance speakers. Shenzhen Yongfukang Technology Co., Ltd. launched the CS8672 built-in boost 32W mono class D single chip square dance lever Speaker audio amplifier solution to provide the ultimate sound quality experience for square dance lovers.
A brief introduction to CS8672
CS8672C is a built-in BOOST boost module, 32W mono class R audio power amplifier circuit. The built-in high-power BOOST boost module can provide up to 32W of continuous power for 4Ω load speakers under two lithium batteries in series or a 12V power supply platform. It is an excellent power output platform for bass units in home audio or mobile home audio. The CS8672C does not require external heat dissipation devices, and simple peripheral settings can greatly improve production and processing efficiency. CS8672C has built-in over-current protection, short-circuit protection and over-heat protection, which effectively protects the chip from being damaged under abnormal working conditions.
CS8672C is a slim TSSOP28-PP package. Compared with traditional applications, it has the following advantages
The audio subsystem takes the smallest and optimal board area
Full power output without external heat sink
A one-stop solution for the audio subsystem powered by two-cell lithium batteries in series and lead-acid batteries, the output power can reach the ultimate 30W.
CS8672 indicator characteristics
â— Output power
PO at 10% THD + N, input voltage = 7.4V, PVcc = 15V
RL = 4 Ω 28W (typical value)
PO at 10% THD + N, input voltage = 12V, PVcc = 16V
RL = 4 Ω 32W (typical value)
â— Up to 75% efficiency, no heat sink
â— Large power supply voltage range 6V ~ 14V
â— The input voltage is powered by two batteries in series, BOOST can boost up to 15V
â— When the input voltage is 9 ~ 14V, BOOST can be boosted up to 16V
â— Speaker protection
â— The output pins are convenient for wiring layout
â— Good short circuit protection and temperature protection with automatic recovery function
â— Good distortion and anti-pop function
â— Four-level gain adjustable
â— Differential input
Application range
Square Sound System
Home audio system
Typical application diagram
DEMO example
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