PT8915 Overview
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 ponents needed in application circuits makes it suite for the USB powered speaker system.
PT8915 Key Features
- pliant with USB2.0 full speed specification
- pliant with USB Audio class specification
- pliant 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 string informatio
- Packages: 28 pins SOP