STEVAL-CCA013V1

STEVAL-CCA013V1 Mono Class-D audio amplifier with power analog switch demonstration board based on the TS4961T Data brief Features ■ Power supply range: 2.4 V to 4.3 V ■ Audio amplifier standby mode active low ■ Ultra high-off-isolation on analog switch: -80 dB typical ■ Output power: 1.6 W at 4.2 V into 4 W with 1% THD+N maximum ■ Adjustable gain via external resistors ■ Low current consumption 2 mA at 3 V ■ Efficiency: 88% typical ■ Signal-to-noise ratio: 85 dB typical ■ PSRR: 63 dB typical at 217 Hz with 6 dB gain ■ Thermal shutdown protection ■ Break before make delay switching time ■ QFN16 package 3mm x 3mm, 450 µm pitch Description ) s ( ct u d o r P e bs t e l o STEVAL-CCA013V1 O ) s ( t c u d o This demonstration board is designed to evaluate the TS4961T1, a mono Class-D speaker driver with power audio switch, dedicated to high audio performances and space-constrained applications. r P e t e l o The chip has two functions: the first is an audio Class-D amplifier, and the second is a dual-power analog switch. s b O Both functions can be used separately (for two different audio channels) or together (to connect two audio sources to one speaker). Thanks to the output configuration possibilities, the power supply pins, the I/O pins and the standby pins are separated. It is also possible to control both switches separately. The TS4961T device is soldered on the two-layer PCB. Both functions previously mentioned can be evaluated separately or together through connectors on the demonstration board. June 2009 Doc ID 15790 Rev 1 For further information contact your local STMicroelectronics sales office. 1/5 www.st.com 5 Circuit schematics and BOM list STEVAL-CCA013V1 1 Circuit schematics and BOM list Figure 1. Schematic diagram 6##S * *    6##S 6##A *0    *0    *0    3, 3, 34$"9 )# # 2 N& # + 2 N& + 34$"9 3, 3, %0!$   ). /54   ). /54   $ 4   $ 4   6##A * 6TO6       6##A '.$A # 6##S '.$S du  ro   P e 434 U& ) s ( ct t e l o # O ) 6##S U& Component list for the demonstration board Name u d o C1, C2 C3, C4 R1, R2 s ( t c Quantity 2 Pr 2 Description 100 nF/50 V X7R, +/-10 %, SMD ceramic capacitors, 0603 1 µF/10 V X5R, +/-10 %, SMD ceramic capacitors 0603 2 150 K/1 %, 0.063 W, SMD resistors, 0603 4 2-pin header 2.54 mm pitch J1, J2, JP1, JP2, JP3 5 3-pin header 2.54 mm pitch IC1 1 TS4961TIQT e t e ol J3, J4, J5, J6 s b O 2/5 Doc ID 15790 Rev 1 * * 6TO6 bs Table 1. * !- STEVAL-CCA013V1 2 Demonstration board layout Demonstration board layout The following figures show the layers and the top view of the evaluation board. Figure 2. PCB top overlay Figure 3. PCB top layer ) s ( ct u d o r P e Figure 4. t e l o PCB bottom overlay Figure 5. ) (s s b O PCB bottom layer t c u d o r P e t e l o s b O Doc ID 15790 Rev 1 3/5 Revision history 3 STEVAL-CCA013V1 Revision history Table 2. Document revision history Date Revision 04-Jun-2009 1 Changes Initial release. ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O 4/5 Doc ID 15790 Rev 1 STEVAL-CCA013V1 ) s ( ct Please Read Carefully: u d o Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. r P e All ST products are sold pursuant to ST’s terms and conditions of sale. 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All other names are the property of their respective owners. © 2009 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com Doc ID 15790 Rev 1 5/5