Operating noise free, the NCP2991 1.35W class AB audio amplifier specifies a power-supply rejection ratio of -103 dB. Groomed for portable and wireless audio applications, the device guarantees zero pop-and-click noise at start-up and shut-down and achieves a THD level of 0.015%. Start-up time is selectable between 15 ms and 20 ms and power consumption in standby is 20 nA. Other features include 1.35W of output power to an 8-Ohm load or 1.1W into 4 Ohms and thermal-overload protection. Available in a 1.45 mm x 1.45 mm x 0.6 mm µBump package, price is $0.22 each/3,000. For more details, call ON SEMICONDUCTOR, Phoenix, AZ. (800) 282-9855.
Company: ON SEMICONDUCTOR
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