STEVAL-CCA019V1

STEVAL-CCA019V1 2 W stereo audio power amplifier based on the TS4982 Data brief Features ■ 2 W output power into 4 Ω load per channel ■ 125 mW into 16 Ω load ground-referenced stereo headphone driver ■ Four-step gain settings on speaker path ■ 3 levels of 3D effect on speaker path ■ PC-beep input system detection ■ ±8 kV HBM ESD-protected headphone outputs ■ Pop and click reduction circuitry ■ 32-pin 5 x 5 mm QFN package ■ Thermal shutdown and output short-circuit protection ■ RoHS compliant STEVAL-CCA019V1 AM05060v1 Description The STEVAL-CCA019V1 is a demonstration board designed to help in the characterization of the TS4982, which features a stereo loudspeaker driver and a ground-referenced stereo headphones driver. An independent standby mode pin allows the TS4982 to simultaneously drive both output drivers. Operating on a single 5 V supply, the TS4982 delivers 2 W (typ.) output power into a 4 Ω load at 1% THD+N. The TS4982 features a PC beep input, three levels of 3D stereo enhancement and 4-step gain control using two digital input pins. A minimum number of external components makes the TS4982 well suited for notebook and other hand-held sound equipment. It also has an internal thermal shutdown (150° C) and output short-circuit protection mechanism. The TS2012 is available in a 4x4 mm QFN20 package. July 2009 Doc ID 16074 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 Schematic diagram STEVAL-CCA019V1 1 Schematic diagram Figure 1. Circuit schematic VCC JP3 1 2 3 J1 3D1 N.A. J5 N.A. VCC JP1 JP5 1 2 3 C1 1 2 JP7 1 2 3D0 330nF LHPin RSPKout J6 J2 N.A. N.A. VCC VCC VCC C13 C8 C7 N.A. 1uF C10 100nF J7 C11 10 0n F N.A. N.A. C2 1 2 3 22 HLIN 8 1 HRIN 18 PGND PVCCL 26 VCC JP8 PGND 3D1 27 3D0 RHPin VCC 30 330nF 29 PGND 1 2 PVCCR JP6 ROUT+ ROUT- LHP G0 RHP N.A. HPVCC C16 1uF 17 N.A. JP11 16 1 2 15 PGNDR R2 10k R3 10k J15 N.A. J17 21 PVSS PGNDL 5 14 CP- CPVSS GND BYP 28 J4 7 G1 LSPKin 24 J16 HPout 12 330nF HPVCC BEEP 13 32 TS4982 SPKREN CP+ 1 2 31 6 J14 10 C3 J8 N.A. LOUT- CPVCC 4 JP10 19 LRIN CPGND 23 N.A. LLIN 9 2 11 3 SPKREN LSPKout 20 HDEN HDEN HDEN 1 2 U1 LOUT+ J3 JP9 PGND N.A. N.A. C14 JP19 1 2 1uF C5 JP12 C4 C17 330nF R4 100k J9 HDEN 1uF 1 2 VCC C15 SPKREN RSPKin 1uF N.A. 2 1 1uF JP13 VCC HPVCC 1 2 3 JP20 SPKREN JP14 R1 C6 1 2 J10 J11 N.A. 330nF N.A. 47k PCBEEPin VCC JP4 VCC HPVCC JP18 2 1 1 2 3 HPVCC JP16 VCC 1 2 JP15 1 2 Vcc G0 J12 VCC JP2 J13 N.A. N.A. 1 2 3 G1 Comment: N.A. ... Not Assembled AM05059V1 AM05060v1 2/4 Doc ID 16074 Rev 1 STEVAL-CCA019V1 2 Revision history Revision history Table 1. Document revision history Date Revision 23-Jul-2009 1 Changes Initial release. Doc ID 16074 Rev 1 3/4 STEVAL-CCA019V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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