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| PT8913 USB Speaker Controller with Class D Amp. 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. 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. * Built-in PLL (48MHz for USB) * Packages: 24 pins SOP APPLICATION * USB Speaker BLOCK DIAGRAM Tel: 886-66296288Fax: 886-29174598 http://www.princeton.com.tw2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT8913 APPLICATION CIRCUIT V1.2 2 December 2009 PT8913 ORDER INFORMATION Valid Part Number PT8913-S Package Type 24 Pins, SOP, 300mil Top Code PT8913-S PIN CONFIGURATION PIN DESCRIPTION Pin Name USBDP USBDM Vreg Test GND Vref VDD2 DACOR VOLINR VOLINL DACOL NC NC OUTLP GNDL VDDL OUTLN OUTRN VDDR GNDR OUTRP OSCO OSCI VDD1 V1.2 I/O I I Power I power Power Power O I I O O Power Power O O Power Power O O I Power Description USB data plus USB data minus Regulator 3.3V power Tie to high, Tie to low to issue remote wake up signal DAC ground Reference voltage DAC power DAC output right channel Volume in right channel Volume in left channel DAC output left channel Not used Not used Left channel positive output Left channel ground Left channel power Left channel negative output Right channel negative output Right channel power Right channel ground Right channel positive output Output for 12MHz oscillator Input for 12MHz oscillator USB 5V power 3 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 December 2009 PT8913 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, 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 V1.2 4 December 2009 |
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