Product Descriptions

HT328 is a stereo efficient, Class-D audio amplifier for driving speakers up to 50W/4 Ω in mono PBTL. It can also deliver 2×33W/8Ω power in stereo BTL.

Advanced EMI Suppression with Spread Spectrum Control enables the use of inexpensive ferrite bead filters while meeting EMC requirements for system cost reduction. 

HT328 is fully protected against faults with Overvoltage, Undervoltage, Overtemperature, DCdetect, and Overcurrent protection. Faults can be reported to the processor to prevent devices from being damaged.

Product Features

• Output Power (BTL)

2×20W (VDD=14.5V, RL=4Ω, THD+N=1 percent)

2×33W (VDD=22V, RL=8Ω, THD+N=10 percent)

• Output Power (PBTL)

50W (VDD=22V, RL=4Ω, THD+N=1 percent)

• Single Wide Voltage Supply: 4.5V-22V

• Selectable Work Mode: BD or Hybrid

• Efficiency > 90 percent

• Differential / Single-ended Analog Input, BTL or PBTL Output

• Selectable Gain: 32dB or 17.6dB

• Spread Switching Frequency For Inductor Free

• Integrated Self-protection Circuits Including 

• Overvoltage, Undervoltage, Overtemperature, DCdetect, and Overcurrent with Error Reporting

• LF and HF Package of TSSOP28-PP

  Product Applications

• Sound Bars

• Wireless Speakers

• Consumer Audio Applications 

• TVs/Monitors

  Specifications

Actual product photos

Product Data Book：

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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