Press Release Summary:
Model FAN7021 produces up to 1W of low-distortion continuous output power (1.5W peak) with supply voltages from 2.0V to 5.5V. Device utilizes integrated adaptive bias current control circuit, and has low-shutdown current consumption (0.1 microamp). Total harmonic distortion (THD) is 0.2%, and power supply rejection ratio (PSRR) is 65dB. Thermal shutdown protection, unity gain stability, and external gain configuration capability are provided.
Original Press Release:
NEW 1 WATT CMOS POWER AMPLIFIER IC PROVIDES EXCELLENT SOUND QUALITY AND HIGH EFFICIENCY FOR PORTABLE AUDIO APPLICATIONS
San Jose, Calif.-February 20, 2002-Fairchild Semiconductor International (NYSE: FCS) announces the FAN7021, a CMOS power amplifier targeted for mobile phone, DECT phone, PDA, and other portable applications. The FAN7021 produces up to 1W of low-distortion continuous output power (1.5W peak) with supply voltages from 2.0V to 5.5V. The device utilizes an integrated adaptive bias current control circuit to minimize crossover distortion even while consuming 54% lower quiescent supply current than other competitive devices. Additionally, the FAN7021's exceptionally low bias-supply current, combined with low-shutdown current consumption (0.1 microamps), saves energy and extends battery life. With typical total harmonic distortion (THD) of 0.2% and exceptional power supply rejection ratio (PSRR) of 65dB, the FAN7021 delivers high-quality output performance in portable audio applications.
The FAN7021 power amplifier also features a built-in popping noise reduction circuit to reduce unexpected speaker noise when the system's power is turned on or off. The FAN7021 reduces overall system footprint by not requiring an output coupling capacitor, a bootstrap capacitor, or a snubber network. Other features include thermal shutdown protection, unity gain stability, and external gain configuration capability. The FAN7021 is offered in an 8-SOP package and comes in tube or tape-and-reel packing.
Price: US $0.55 (1,000 pc.)
Delivery: 8-10 weeks ARO