PT8913 PTC | Alldatasheet
Document overview
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Technical content
USB Speaker Controller with Class D Amp. Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
DESCRIPTION
The PT8913 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 PT8913 is a truly plug and play USB audio device. APPLICATION
- USB Speaker
FEATURES
- Compliant with USB2.0 full speed specification.
- Compliant with USB Audio class specification.
- 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)
- Packages: 24 pins SOP BLOCK DIAGRAM
V1.1 2 October 2009 APPLICATION CIRCUIT
V1.1 3 October 2009 ORDER INFORMATION Valid Part Number Package Type Top Code PT8913-S 24 Pins, SOP, 300mil PT8913-S PIN CONFIGURATION PIN DESCRIPTION Pin Name I/O Description Pin No. USBDP I USB data plus 1 USBDM I USB data minus 2 Vreg Power Regulator 3.3V power 3 Test I Tie to high, Tie to low to issue remote wake up signal 4 GND power DAC ground 5 Vref Power Reference voltage 6 VDD2 Power DAC power 7 DACOR O DAC output right channel 8 VOLINR I Volume in right channel 9 VOLINL I Volume in left channel 10 DACOL O DAC output left channel 11 NC - Not used 12 NC - Not used 13 OUTLP O Left channel positive output 14 GNDL Power Left channel ground 15 VDDL Power Left channel power 16 OUTLN O Left channel negative output 17 OUTRN O Right channel negative output 18 VDDR Power Right channel power 19 GNDR Power Right channel ground 20 OUTRP O Right channel positive output 21 OSCO O Output for 12MHz oscillator 22 OSCI I Input for 12MHz oscillator 23 VDD1 Power USB 5V power 24
V1.1 4 October 2009 IMPORTANT NOTICE Princeton Technology Corporation (PTC ) reserves the right to make co rrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw