TS2012IQT STMicroelectronics

TS2012 Filter-free stereo 2x2.8 W class D audio power amplifier Datasheet - production data Features TS2012 - QFN20 (4x4 mm) Operating range from V = 2.5 V to 5.5 V CC Standby mode active low Output power per channel: 1.35 W 5 V or 0.68 W 3.6 V into 8 with 1 % THD+N max Output power per channel: 2.2 W 5 V into Pin connections (top view) 4 with 1 % THD+N max 2020 1919 1818 1717 1616 Four gains can be selected: 6, 12, 18, 24 dB Low current consumption PSRR: 70 dB typ 217 Hz with 6 dB gain 11 G1G1 G0G0 1515 Fast startup phase: 1 ms Thermal shutdown protection 22 1414 LoutLout++ RoutRout++ QFN20 4x4 mm lead-free package 33 1313 PVPVCCCC PVPVCCCC 44 PGPGNDND PGPGNDND 1212 Applications 55 LoutLout-- RoutRout-- 1111 Cellular phone PDA Flat panel TV 6767 919100 88 Description Block diagram The TS2012 is a fully differential, class D, power amplifier stereo. It is able to drive up to 1.35 W into an 8 load at 5 V per channel. It achieves 20 LIN + LOUT+ 2 Gain H PWM 19 LIN - Select Bridge LOUT- 5 outstanding efficiency compared to typical class 15 G0 AB audio amps. 1 G1 The device has four different gain settings utilizing Oscillator two discrete pins: G0 and G1. Pop and click reduction circuitry provides low 16 RIN + ROUT+ 14 Gain H PWM 17 RIN - Select Bridge ROUT- 11 on/off switch noise while allowing the device to STBY L start within 1 ms. 7 Standby STBY R 8 Control Two standby pins (active low) allow each channel to be switched off independently. The TS2012 is available in a QFN20 4x4 mm package. July 2013 DocID14236 Rev 2 1/29 This is information on a product in full production. www.st.com 300k 300k 300k 300k LiLin+n+ NCNC STBSTBYYLL LiLin-n- 18 9 AGND AV CC AGAGNNDD STBSTBYYRR RiRin-n- 4 3 AVAVCCCC PGND PV CC 12 13 PGND PV CC NCNC RinRin++Contents TS2012 Contents 1 Absolute maximum ratings and operating conditions . 3 2 Typical application 5 3 Electrical characteristics . 7 3.1 Electrical characteristic tables 7 3.2 Electrical characteristic curves . 12 4 Application information . 21 4.1 Differential configuration principle 21 4.2 Gain settings 21 4.3 Common mode feedback loop limitations 21 4.4 Low frequency response . 22 4.5 Decoupling of the circuit 22 4.6 Wakeup time (t ) 23 wu 4.7 Shutdown time . 23 4.8 Consumption in shutdown mode . 23 4.9 Single-ended input configuration . 24 4.10 Output filter considerations 24 5 Package information 26 5.1 QFN20 package information 26 6 Ordering information . 28 7 Revision history . 28 2/29 DocID14236 Rev 2