EUA2313B ds2313b ver1.1 dec. 2013 1 6-w stereo class-d audio power amplifier with speaker protection description the EUA2313B is a high efficiency, 2 channel bridge d-tied load (btl), class-d audio power amplifier. operatin g from a 10v power supply, EUA2313B is capable of deliveri ng 6w/ channel of continuous output power to a 8 load with 10% thd+n. the EUA2313B features a differential inp ut architecture offering improved noise immunity over a single-ended (se) input amplifier. amplifier gain i s internally configured and can be selected to 20, 26 , 32 or 36db utilizing the g0 and g1 gain select pins. adva nced emi suppression technology enables the use of inexpensive ferrite bead at the outputs while meeti ng emc requirements. the speaker protection circuitry is integrated into EUA2313B to limit the amount of current through the speaker. meanwhile, the agc detects output signal c lip due to the over level input signal and suppresses i t automatically. the EUA2313B also features short-cir cuit and thermal protection preventing the device from b eing damaged during a fault condition. the EUA2313B is available in thermally efficient 28-pin tssop packa ge. features wide supply voltage: 5.5v to 26v unique modulation scheme reduces emi emission 6-w/ch into an 8- load from a 10-v supply 12w into a 4- mono load from a 10-v supply 87% efficient class-d operation eliminates need for heat sinks four selectable, gain settings differential inputs speaker protection circuitry auto gain control and power clamp thermal and short-circuit protection 28-pin tssop package with thermal pad rohs compliant and 100% lead(pb)-free halogen-free applications televisions typical application circuit figure1. simplified application schematic
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