STEVAL-CCA038V1 Low-voltage audio power amplifier based on the TS4871IQT Data brief Features Operating from VCC = 2.2 V to 5.5 V Active high standby mode 1.2 W output power @ VCC = 5 V, THD = 1%, F = 1 kHz, with 8 load Ultra low power consumption in standby mode (10 nA) 62 dB PSRR @ 217 Hz in grounded mode (AV = 2 V/V) Near zero pop and click Ultra low distortion (0.1%) Module gain set at 2 V/V Thermal and short-circuit protection RoHS compliant u d o r P e t e l o ) (s Description ) s ( ct s b O t c u The STEVAL-CCA038V1 demonstration board is designed for the TS4871 low power audio amplifier. The micro package DFN8 (dual flat nonleaded 8-pin) allows space saving and good thermal dissipation. d o r P e t e l o The BTL gain is set at 2 V/V and can be adapted if necessary with a modification of two (R1 or R2) resistor values. s b O On the board, it is possible to modify the input configuration from single ended to differential. More information regarding component calculations is available in the TS4871 datasheet. May 2012 Doc ID 023210 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 2/4 Doc ID 023210 Rev 1 2 K 6CC # # U "YPASS 3TANDBY # 6IN '.$ "IAS !V t e l o s b O $ 07 /. 2 2 6IN 6OUT 6OUT u d o 43 r P e 3 3TANDBY 6CC 3 0OSITIVE )NPUT MODE 2 # t e l o 0 P e d o r t c u ) (s 6CC # # '.$ 3 '.$ 3 /54 3 3 Schematic diagram # # N Figure 1. 2 # # 6CC Schematic diagram 0OS INPUT 2 2 # 1 0 3 3 s b O .EG INPUT '.$ 6CC 6CC 2 # Schematic diagram STEVAL-CCA038V1 ) s ( ct !-V STEVAL-CCA038V1 2 Revision history Revision history Table 1. Document revision history Date Revision 25-May-2012 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 023210 Rev 1 3/4 STEVAL-CCA038V1 ) s ( ct Please Read Carefully: u d o Information in this document is provided solely in connection with ST products. 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