LM48511SQBD National Semiconductor, LM48511SQBD Datasheet
LM48511SQBD
Specifications of LM48511SQBD
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LM48511SQBD Summary of contents
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... November 5, 2008 Introduction To help the user investigate and evaluate the LM48511SQ performance and capabilities, a fully populated demonstration board was created. Please contact National Semiconductor Corporation’s Audio Products Group for availability. This board is shown in Figure 1. Connected to an external power supply (3.0V LM48511SQ demonstration board easily exercises the amplifier’ ...
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General Description The LM48511 integrates a boost converter with a high effi- ciency Class D audio power amplifier to provide 3W continu- ous power into an 8Ω speaker when operating from a 5V power supply. When operating from a 3V ...
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Schematic FIGURE 2. Typical LM48511 Audio Amplifier Application Circuit 3 30085504 www.national.com ...
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Connections TABLE 1. LME49600 Demonstration Board Connections Designator Supply Voltage (VDD) The supply voltage operating range is from 3.0V to 5.5V, but the absolute maximum rating is 9V. The two center pins of the 4 pin connector on the left ...
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Bill Of Materials Designator Description Cf1 CHIP CAPACITOR GENERIC CINA CHIP CAPACITOR GENERIC CHIP CAPACITOR GENERIC CINB Co CHIP CAPACITOR GENERIC CHIP CAPACITOR GENERIC Cs1 Cs2 CHIP CAPACITOR GENERIC D1 SCHOTTKY DIODE L1 R1 CHIP RESISTOR GENERIC R2 CHIP RESISTOR ...
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Demonstration Board PCB Layout Figures 3 through 8 shows the different layers used to create the LM48511SQ demonstration board. Figure 3 is the silkscreen that shows component locations on the board’s top www.national.com surface. Figure 4 is the metal Top ...
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FIGURE 5. Mid Layer 1 FIGURE 6. Mid Layer 2 7 30085505 30085506 www.national.com ...
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FIGURE 7. Bottom Layer FIGURE 8. Bottom Overlay 8 30085501 30085502 ...
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Typical Performance Characteristics THD+N vs Frequency = 8Ω 5V 2W, filter = 22kHz THD+N vs Frequency = 8Ω 3V 1.5W, filter = 22kHz, PV ...
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THD+N vs Output Power V = 3V, 3.6V, 5V 1kHz, filter = 22kHz, R Boost Amplifier vs Output Power 1kHz Boost Amplifier vs Output Power V ...
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PSRR vs Frequency = 8Ω 3.6V 200mV , RIPPLE PP 1 30085530 Supply Current vs Supply Voltage PV = 7.8V 1 30085532 Supply Current vs Supply Voltage PV = 4.8V ...
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Power Dissipation vs Output Power V = 3.6V 7V Boost Converter Efficiency 5V Boost Converter Efficiency 3V www.national.com = 8Ω ...
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Revision History Rev Date 1.0 11/05/08 Description Initial release. 13 www.national.com ...
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... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...