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FDMA905P Datasheet(PDF) 3 Page - Fairchild Semiconductor |
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FDMA905P Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 8 page CLASS-D AUDIO AMPLIFIER Achieve Loud and Clear Sound While Extending Battery Life Customer demand is driving the need for louder and clearer speaker sound in mobile devices. While minimizing impact on battery life, designers can achieve the performance they require with Fairchild’s FAB3103. The 2.3W Class-D audio amplifier with integrated boost regulator and battery automatic gain control (AGC) allows for high audio output power over a power supply range of 2.5V to 5.2V from a 3.6V Li-Ion battery. At low power output, the device’s boost regulator automatically shuts down for greater efficiency and lower quiescent current consumption, resulting in longer battery runtime. The FAB3103 audio amplifier also features battery AGC that reduces gain when the power supply voltage is low in order to limit maximum power consumption, reducing distortion and preventing early device software shutdown. Available in a 12-bump, WLCSP, the FAB3103 device also offers several protection features including short circuit protection, low voltage shutdown, and click-and-pop suppression. Advantages • LowEMIdesignallows filterlessoperation • Highnoiserejectionusing differentialaudioinputs • Highefficiencyboostregulator provideshigheroutputpower overbatteryvoltages • Boostshutdownatlower outputpowerincreases efficiencyandreduces quiescentcurrent consumption • AGCmonitorsbatteryvoltage anddynamicallyadjustsgain, extendingbatteryruntime Applications • Mobilehandsets • Smartphones • Tablets • MultimediaInternet devices(MID) • Portablemediaplayers For more information, please visit: www.fairchildsemi.com/pf/FA/FAB3103.html Product Number Supply Voltage (V) Output Power at 10% THD+N Output Power at 1% THD+N THD+N at 0.1W Features Package (mm x mm) 3.6V, 8Ω (W) 3.6V, 8Ω (W) 3.6V, 8Ω (%) Speaker Amplifier Integrated Boost Converter FAB3103 2.5 to 5.2 2.3 1.85 0.01 Filterless Class-D Class-G 12-WLCSP, 1.86 x 1.44 0.01 0.1 1 10 0.001 0.01 0.1 1 10 Output Power (W) VBATT=4.8V VBATT=4.2V VBATT=3.6V VBATT=2.8V f = 1KHz Typical Application Circuit Class-D Amplifier OUT+ OUT- Boost Regulator VBATT IN+ IN- CVBATT 10F BATTERY CINP 1 F CINN 1 F EN SW CVREG 22 F L SW 2.2H AGCT PVDD BATTERY Total Harmonic Distortion + Noise vs. Output Power |
Similar Part No. - FDMA905P |
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Similar Description - FDMA905P |
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