9W+9W類比輸入立體聲D類喇叭放大器 - BD28412MUV
本IC不使用散熱片，是可通過立體聲BTL進行9W+9W輸出或通過單聲道PBTL進行18W輸出的立體聲D類喇叭放大器。內建高精度振盪器，為避免與AM無線電干擾，可選擇多個開關頻率。此外，可選擇主/從模式，因此無需在意差拍雜訊，即可實現使用2個IC的2.1Ch音響系統。實現了小輸出時的低功耗，是最適於無線喇叭等搭載電池的喇叭系統的立體聲D類喇叭放大器。
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規格:
Vcc(Min.)[V]
4.5
Vcc(Max.)[V]
13.0
Speaker Amp Outputs
2.0
Speaker Amp PSRR[dB]
55.0
Speaker Amp Input Type
Analog Signal
Speaker Amp Type
Class D
Speaker Amp Output Power(Max.)[W]
9
Operating Temperature (Min.)[°C]
-25
Operating Temperature (Max.)[°C]
85
功能:
- Analog Differential Input
- Low Standby Current
- Output Feedback Circuitry Prevents Sound Quality Degradation Caused by Power Supply Voltage Fluctuation, Achieves Low Noise and Low Distortion, Eliminates the Need of Large Electrolytic-Capacitors for Decoupling
- Power Limit Function (Linearly-programmable)
- Selectable Switching Frequency
(AM Avoidance Function) - Synchronization Control is Supported
(Selectable Master and Slave Operation) - Parallel BTL (PBTL) is Supported
- Wide Voltage Range (VCC=4.5V to 13V)
- High Efficiency and Low-heat-generation Make the System Smaller, Thinner, and More Power-saving
- Pop Noise Prevention During Power Supply ON/OFF
- High Reliability Design by Built-in Protection Circuits
- Overheat Protection
- Under Voltage Protection
- Output Short Protection
- Output DC Voltage Protection
- Small Package (VQFN032V5050) Achieves Mount Area Reduction