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PT8914

Princeton Technology
Part Number PT8914
Manufacturer Princeton Technology
Description USB Speaker Controller
Published Apr 17, 2010
Detailed Description PT8914 USB Speaker Controller with Class D Amp. www.DataSheet4U.com DESCRIPTION The PT8914 is a cost-efficient single c...
Datasheet PDF File PT8914 PDF File

PT8914
PT8914

Overview
PT8914 USB Speaker Controller with Class D Amp.
www.
DataSheet4U.
com 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 components needed in application circuits makes it suite for the USB powered speaker system.
The I/O interface is totally follow the USB audio class specification, no special driver software needs to install on user’s computer and support most popular Operating System in the recent market.
The PT8914 is a truly plug and play USB audio device.
The embedded GPIO pins provide the mute and volume adjustment functions.
FEATURES • Compliant with USB2.
0 full speed specification.
• Compliant with USB Audio class specification.
• Compliant 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 APPLICATION • USB Speaker BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.
princeton.
com.
tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan www.
DataSheet4U.
com PT8914 APPLICATION CIRCUIT V1.
1 2 October 2009 www.
DataSheet4U.
com PT8914 ORDER INFORMATION Valid Part Number PT8914-S Package Type 24 Pins, SOP, 300mil Top Code PT8914-S PIN CONFIGURATION PIN DESCRIPTION Pin Name USBDP USBDM Vreg Test GND Vref VDD2 DACOR VOLINR VOLINL DACOL MUTE VOLUP/DN OUTLP GNDL VDDL OUTLN OUTRN VDDR GNDR OUTRP OSCO OSCI VDD1 V1.
1 I/O I I Power I power Power Power O I I O I I O Power Power O O Power Power O O I Power Description Pin No.
USB data plus 1 USB data minus 2 Regulator 3.
3V power 3 Tie to high, tie to low to issue remote wake up signal 4 DAC ground 5 Reference voltage 6 DAC power 7 DAC output right channel 8 Volume in right channel 9 Volu...


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