SGM4888

SGM4888 Dual 2.1W Audio Power Amplifier Plus Stereo Headphone & 3D Enhancement GENERAL DESCRIPTION The SGM4888 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.1W into a 4Ω load or 2.5W into a 3Ω load with typically 1% THD+N. The SGM4888 has two separate HP (headphone) enable inputs, each having different logic level thresholds. Either HP enable input activates the single-ended headphone mode and disables the BTL output mode. The HP Sense input is for use with a normal stereo headphone jack. The remaining input, HP Logic, accepts standard logic level thresholds. To simplify audio system design, the SGM4888 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip. The SGM4888 features a low power consumption shutdown mode and thermal shutdown protection. It also utilizes circuitry to reduce “pop/click” during device turn-on. The SGM4888 is available in Green TQFN-4×4-24L package. It operates over a...