PT8914 Description
The PT8914 is a cost-efficient single chip for USB speaker application. It integrated USB controller, 16 bit audio DAC 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.
PT8914 Key Features
- pliant with USB2.0 full speed specification
- pliant with USB Audio class specification
- pliant with USB HID class specification for volume, mute remote control
- Supply voltage: 4.5~5.5V
- Built-in class-D audio amplifier with 1Watt output power for each channel. (USB 500mA+8ohm speaker)
- Built-in PLL (48MHz for USB)
- Key pad control for mute, volume up and volume down
- Packages: 24 pins SOP
- USB Speaker