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| Tr i path Technol ogy, I nc. - Techni cal Information RB-TA2024-01 CLASS-T DIGITAL AUDIO AMPLIFIER MINI REFERENCE BOARD USING DIGITAL POWER PROCESSING T M TECHNOLOGY Technical Information Revision - Date Introduction Measuring only 1.2" x 1.6," the Mini TA2024 (RB-TA2024-01) was created to provide the systems designer with a minimal footprint reference for use in space-constrained applications of the TA2024 2x15W high efficiency amplifier. The board is a complete TA2024 2x15W circuit, ready to evaluate. It needs only power, signal and passive speakers to be up and running. Connection and Operation Below is a simple diagram showing the input and output connection requirements of the RB-TA2024-01. The +12V supply must not exceed 13.2V at any time, or damage to the device may occur. A low level stereo signal source, such as a portable MP3 or CD player can be used for the input, while normal passive bookshelf or home theater speakers (4 ohms minimum) can be used for the outputs. Application Information When playing music, lower output power levels can be sustained indefinitely, while higher levels can be played for only a limited time due to the small size of the copper area of the pc board. The TA2024 is extremely efficient, approaching 90% with an 8 load; however, the dissipated power inside the TA2024, though relatively small, still generates heat. This heat conducts through the TA2024's heat slug and onto the pc board area to which the heat slug is soldered. In final end applications, the TA2024 and its associated components will be part of a larger system design where more heat sinking area will be available, via multi layers or larger ground plane, or both. Please consult the TA2024 datasheet for more information on power dissipation requirements. Warning: The intended purpose of the RB-TA2024-01 is to show a minimum footprint application for TA2024 and its associated components. Though it is a fully functional design, it is NOT intended to be used as a standalone amplifier product. For final product application, please consult the Power Dissipation section in the TA2024 datasheet for necessary thermal requirements. +12V GND CH1 OUT1+ OUT1CH2 OUT2OUT2+ NOTE: Board shown ACTUAL SIZE when printed on 8.5" x 11" paper GND 1 RB-TA2024-01 Tr i path Technol ogy, I nc. - Techni cal Information Contact Information TRIPATH TECHNOLOGY, INC 2560 Orchard Parkway, San Jose, CA 95131 408.750.3000 - P 408.750.3001 - F For more Sales Information, please visit us @ www.tripath.com/cont_s.htm For more Technical Information, please visit us @ www.tripath.com/data.htm 2 RB-TA2024-01 1 L5 BEAD C21 100pF 12V+ J9 GND J10 12V+ GND U2 TA2024 +12V_PLANE L8 10uH J5 C27 0.47uF C12 0.47uF C8 100pF J6 C10 100pF CPUMP PGND1 NC VDDA NC OUTP1 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 L9 10uH C22 0.47uF C6 0.1u C7 0.1u C19 + 470u_25V L6 10uH C28 0.47uF R9 10 C29 0.1uF C5 1uF 1 C17 1uF 0.1u C16 2 3 4 R7 8.2K, 1% L1 C23 100pF 1uF C14 J14 20K R2 40k R5 BEAD 5 6 7 8 9 10 11 12 1uF C15 13 20K R4 40k R6 14 15 16 J4 L2 C24 100pF BEAD C26 0.1u 17 18 +5GEN DCAP2 DCAP1 V5D AGND1 REF +12V_PLANE OUT1+ J3 OUT1A A AGND2 V5A VP1 IN1 MUTE NC VP2 IN2 BIASCAP AGND3 SLEEP COPPER AREA * IN1 OVERLOADB VDD1 VDD1 OUTM1 OUTM2 VDD2 VDD2 OUTP2 NC DGND NC PGND2 FAULT L7 10uH J7 C9 100pF C30 0.1uF C11 100pF J8 GND C25 0.47uF C13 0.47uF OUT2+ R10 10 OUT2- IN2 R11 0ohms R3 0ohms TRIPATH TECHNOLOGY INC. Title Size B Date: 1 TA2024 MINI Document Number TA2024 MINI Bill of Materials Item Quantity Reference Part ______________________________________________ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2 C17,C5 4 C6,C7,C16,C26 7 C8,C9,C10,C11,C21,C23, C24 6 C12,C13,C22,C25,C27,C28 2 C14,C15 1 C19 2 C30,C29 3 L1,L2,L5 4 L6,L7,L8,L9 2 R4,R2 2 R11,R3 2 R6,R5 1 R7 2 R10,R9 1 U2 1uF 0.1u 100pF 0.47uF 1uF 470u_25V 0.1uF BEAD 10uH, 2A 20K 0ohms 40k 8.2K, 1% 10, 1/8W TA2024 |
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