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SGM4700 音频D类功放 2*32W 5*20V 双通道 带防破音

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qiuzhixiang|  楼主 | 2022-6-11 11:49 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
Wide Range of Supply Voltages from 5V to 20V
● Adjustable Power Limit to Safeguard Audio Speakers
● Automatic Level Control to Eliminate Output Clipping
● Four Selectable Gain Settings: 20/26/30/34dB
● Three Selectable ALC Dynamic Characteristics
● Two Selectable PWM Frequencies with Optional
Spread-Spectrum: 360kHz and 500kHz
● Two Selectable Modulation Schemes: SSM and DSM
● Optional PBTL Configuration for Mono Applications
● Maximum Output Power (THD+N = 1%) in Non-ALC
 2 × 32W (VDD = 18V, 4Ω + 33μH, BTL)
 2 × 18W (VDD = 18V, 8Ω + 33μH, BTL)
 33W (VDD = 15V, 3Ω + 15μH, PBTL)
● ALC Output Power (THD+N < 0.5%) in ALC
 2 × 29W (VDD = 18V, 4Ω + 33μH, BTL)
 2 × 16W (VDD = 18V, 8Ω + 33μH, BTL)
 30W (VDD = 15V, 3Ω + 15μH, PBTL)
● Wide ALC Dynamic Range: 12dB (VDD = 12V)
● Low THD+N: 0.02% (VDD = 12V, 4Ω + 33μH, PO = 10W/Ch)
● High PSRR: 80dB at 1kHz with SSM
● Protection Modes against Various Operating Faults
Including Under-Voltage, Over-Voltage, Over-Current,
Over-Temperature, and DC-Detect
● Available in a Green TSSOP-28 (Exposed Pad)
Package

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