STEVAL-CCA011V1

STEVAL-CCA011V1 Filter-free stereo 2x2.5 W Class-D audio power amplifier demonstration board based on the TS2012FC Data brief Features ■ Operating range from VCC = 2.5 V to 5.5 V ■ Dedicated standby mode active low for each channel ■ Output power per channel: 1.15 W @5 V or 0.63 W @ 3.6 V into 8 Ω with 1% THD+N max ■ Output power per channel: 1.85 W @5 V into 4 Ω with 1% THD+N max ■ Output short-circuit protection ■ Four gain select settings: 6, 12, 18, 24 dB ■ Low current consumption ■ PSRR: 63 dB typ @ 217 Hz with 6 dB gain ■ Fast start-up phase: 8 ms ■ Thermal shutdown protection ■ RoHS compliant Description ) s ( ct u d o r P e bs t e l o STEVAL-CCA011V1 O ) s ( t c u d o This demonstration board is based on TS2012FC that is a fully differential Class-D stereo power amplifier able to drive up to 1.15 W into an 8 Ω load at 5 V per channel. r P e t e l o It achieves better efficiency compared to typical Class-AB audio amps. s b O The device has four different gain settings that use two digital pins: G0 and G1. Pop and click reduction circuitry provides low on/off switch noise while allowing the device to start within 8 ms. Two standby pins (active low) allow each channel to be switched off independently. The TS2012FC also integrates output shortcircuit protection and thermal shutdown protection and it is available in a 16-bumps Flip-Chip package. June 2009 Doc ID 15789 Rev 1 For further information contact your local STMicroelectronics sales office. 1/6 www.st.com 6 Circuit schematics STEVAL-CCA011V1 Circuit schematics Figure 1. Schematic diagram GND LinLin+ GND 1 Vcc Vcc P1 4 3 2 1 100nF C5 Vcc 1 2 1 2 JP1 JP5 C6 1uF ) s ( ct 220nF LinP A1 A2 Vcc U1 AVCC PVCC Lin+ B1 Lin- G0 C2 G0 G1 B2 G1 D1 Rin+ 3 S1 JP6 1 G0 Oscillator 3 S2 e t e ol JP7 2 1 VCC RinP 1 2 G1 Gain bs Select C1 Rin- B4 STBYL STBR B3 STBYR C3 STBL (s) S3 STBL GND Rin+ RinGND VCC S4 STBR Standby Control TS2012 - FC16 1 2 3 4 Header 4 JP4 Rout+ D3 Rout- D4 H Bridge 1 2 3 4 Header 4 Protection Circuit AGND PGND 1 3 3 JP8 1 t c u 1 2 1 2 3 4 JP2 2 2 220nF -O JP3 Pgnd 220nF C4 A4 PWM C3 RinN Lout- o r P Bridge 2 VCC du A3 PWM Select 1 2 LinN Lout+ H Gain C4 220nF C2 D2 Vcc C1 VCC d o r P e t e l o s b O 2/6 Table 1. Component list for the demonstration board Designation Quantity Description C1, C2, C3, C4 4 220 nF/16 V, SMD ceramic capacitor, 0603 C5 1 100 nF/16 V, SMD ceramic capacitor, 0603 C6 1 1 µF/16 V, SMD ceramic capacitor, 0603 P1, JP5, JP6, JP7, JP8 5 2-pin header 2.54 mm pitch S1, S2, S3, S4 4 3-pin header 2.54 mm pitch JP1, JP2, JP3, JP4 4 4-pin header 2.54 mm pitch U1 1 TS2012EIJT Doc ID 15789 Rev 1 STEVAL-CCA011V1 2 Demonstration board layout Demonstration board layout The following figures depict the top view and layers of the demonstration board. Figure 2. PCB top layer Figure 3. PCB middle layer 1 ) s ( ct u d o r P e t e l o Figure 4. t c u ) (s PCB middle layer 2 d o r s b O Figure 5. PCB bottom layer P e t e l o s b O Doc ID 15789 Rev 1 3/6 Demonstration board layout Figure 6. STEVAL-CCA011V1 Top view and dimensions of the demonstration board ) 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 4/6 Doc ID 15789 Rev 1 STEVAL-CCA011V1 3 Revision history Revision history Table 2. Document revision history Date Revision 03-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 Doc ID 15789 Rev 1 5/6 STEVAL-CCA011V1 ) 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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