STEVAL-CCA019V1 STMicroelectronics

STEVAL-CCA019V1 2 W stereo audio power amplifier based on the TS4982 Data brief Features 2 W output power into 4 load per channel 125 mW into 16 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 STEVAL-CCA019V1 protection AM05060v1 RoHS compliant 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 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 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Schematic diagram STEVAL-CCA019V1 1 Schematic diagram Figure 1. Circuit schematic JP3 VCC 1 J1 2 3 N.A. 3D1 J5 N.A. JP1 VCC 1 JP5 C1 2 JP7 3 1 1 2 3D0 2 330nF LHPin RSPKout J6 J2 N.A. N.A. VCC VCC VCC C13 C8 C7 C10 C11 J7 N.A. 1uF N.A. 100nF 100nF N.A. JP6 C2 JP9 PGND PGND PGND PGND 1 2 1 330nF U1 2 RHPin 27 20 LSPKout HLIN ROUT+ JP8 VCC 26 19 J8 HRIN ROUT- 1 N.A. 22 2 HDEN 3 6 LOUT+ J16 HDEN HDEN 3 7 N.A. LLIN LOUT- HPVCC J3 SPKREN 2 J14 LRIN C16 23 17 N.A. SPKREN HPVCC TS4982 1uF N.A. JP11 4 16 BEEP LHP 1 JP10 C3 31 15 2 G0 RHP 1 HPout 32 2 G1 330nF R2 R3 J15 LSPKin 10k 10k N.A. 24 BYP J4 J17 N.A. N.A. C14 JP19 VCC 1uF C5 R4 JP12 C4 100k J9 1uF HDEN 1 2 330nF C17 C15 SPKREN RSPKin 1uF 1uF N.A. JP13 VCC HPVCC 1 JP20 2 3 SPKREN JP14 C6 R1 J10 J11 1 N.A. N.A. 2 330nF 47k PCBEEPin VCC HPVCC JP18 HPVCC JP16 VCC JP15 JP4 VCC 2 1 1 1 1 2 2 2 3 Vcc G0 J12 J13 JP2 VCC N.A. N.A. 1 2 3 G1 Comment: N.A.. Not Assembled AM05059V1 AM05060v1 2/4 Doc ID 16074 Rev 1 28 30 GND VCC 9 29 CPVCC 3D0 11 1 CPGND 3D1 10 CP+ 12 CP- 13 CPVSS 14 PVSS 5 8 PGNDL PVCCL 21 18 PGNDR PVCCR 2 1 1 2