PT8915 - Princeton Technology

PT8915 USB Speaker Controller

The PT8915 is a cost-efficient single chip for USB speaker application. It integrated USB controller, 16 bit audio DAC, line input and high power, high efficient Class-D audio amplifier in one chip. Only few external components needed in application circuits makes it suite for the USB powered speaker system. The I/O interface is totally follow the USB audio .

Features

• Compliant with USB2.0 full speed specification.
• Compliant with USB Audio class specification.
• Compliant with USB HID class specification for volume and mute remote control.
• Supply voltage: 4.5~5.5V
• Build-in class-D audio amplifier with 2Watt output power for each channel. (external power+4Ω speaker)
• Built-in PLL(48MHz for USB)
• Built-in USB/LINE IN function for selecting PC or external signal.
• Key pad control in USB and Line IN function for mute, volume up and volume down.
• I2C interface for optional external EEPROM to store vendor specified VID, PID, language ID and product st.