EV1740EC-00A 3W High Efficiency Mono Class-D Audio Amplifer EV Board The Future of Analog IC Technology DESCRIPTION FEATURES The EV1740EC-00A is the evaluation board for 3W Into 4 with 5 V VIN 10% THD+N the MP1740, a low-power mono BTL class-D Up to 90% Efficiency audio amplifier. It is one of MPSs products in a 2.5V~5.5V Operation from a Single Supply very small WLCSP package, high efficiency, Module gain is set at 2V/V and full bridge output structure capable of THD+N = 0.1% 1.8W, 5V, 4 delivering 3W into 4 speaker. Internal 250kHz Switching frequency Low Noise (53 V Typical) with 5V VCC The gain of this module is set at 2V/V, and can be easily programmed by changing the input 2mA Quiescent Current and 0.5 A resistors. Shutdown Current Internal thermal and short-circuit protection Internal depop circuitry ELECTRICAL SPECIFICATIONS APPLICATIONS Parameter Symbol Value Units Wireless or Cellular Handsets Supply Voltage VIN 2.5 5.5 V PDAs Portable Audio EV1740EC-00A EVALUATION BOARD TND+N vs. P OUT fs=1kHz, V =5V, Gain=2V/V CC No Weighting 20 10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 (L x W x H) 1.86 x 1.86 x 0.78 60m 100m 200m 300m 500m 1 2 3 4 (4.72cm x 4.72cm x 2.0cm) P (W) OUT Board Number IC Number EV1740EC-00A MP1740 EV1740EC-00A Rev.1.0 www.MonolithicPower.com 1 10/19/2011 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2011 MPS. All Rights Reserved. THD+N (%)EV1740EC-00A 3W HIGH EFFICIENCY MONO CLASS D AUDIO AMPLIFIER EVB SCHEMATICS FOR ACTUAL APPLICATION BILL OF MATERIALS FOR ACTUAL APPLICATION Qty Ref Value Description Package Manufacture Part Number 2 C1, C2 0.22uF Ceramic Cap, X7R, 16V 0603 muRata GRM188R71C224KA01 1 C3 0.22uF Ceramic Cap, X7R, 50V 0805 TDK C2012X7R1H224K 1 C4 10uF Electrolytic Cap, 50V Radial Rubycon 2 R1, R2 150k Ceramic Res, 1% 0603 Yageo RC0603FR-07150KL 1 R3 150k Ceramic Res, 5% 0603 0603SAJ01154TSE 1 U1 Amplifier WLCSP MPS MP1740EC EV1740EC-00A Rev.1.0 www.MonolithicPower.com 2 10/19/2011 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2011 MPS. All Rights Reserved.