lm4913mhx National Semiconductor Corporation, lm4913mhx Datasheet
lm4913mhx
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lm4913mhx Summary of contents
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... Information sections for further information concerning PCB layout sug- gestions to maximize the LM4913MH’s output power with a 4Ω load. Connection Diagram Boomer ® registered trademark of National Semiconductor Corporation. © 2006 National Semiconductor Corporation Key Specifications j BTL output power ( ...
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Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit www.national.com 2 20061799 ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Storage Temperature Input Voltage Power Dissipation (Note 5) ESD Susceptibility (Note 6) ESD Susceptibility (Note 7) Junction ...
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Electrical Characteristics: Bridged-Mode Operation (V The following specifications apply for the circuit shown in Figure 1, R 80kHz, unless otherwise specified. Limits apply for T Symbol Parameter P Output Power (Note 11) O THD+N Total Harmonic Distortion + Noise V ...
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Electrical Characteristics: Bridged-Mode Operation (V The following specifications apply for the circuit shown in Figure 1, R 80kHz, unless otherwise specified. Limits apply for T Symbol Parameter P Output Power (Note 11) O THD+N Total Harmonic Distortion + Noise V ...
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External Components Description (Figure 1) Components 1. R This is the input resistor for the inverting input that, along with the 62.5kΩ internal feedback resistor R i the first stage’s closed-loop gain. The overall SE gain ...
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Typical Performance Characteristics THD+N vs Output Power V = 3V, BTL 8Ω THD+N vs Output Power THD+N vs Frequency (Continued) = 8dB 200617A5 200617A8 V DD 200617B0 7 THD+N vs Output Power ...
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Typical Performance Characteristics THD+N vs Frequency Output Noise Voltage vs Frequency PSRR vs Frequency www.national.com (Continued) THD+N vs Output Power V = 5V, Stereo 200617B2 PSRR vs Frequency 200617B4 200617B6 8 = 32Ω 1.9dB L V ...
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Application Information FIGURE 2. Typical Audio Amplifier Application Circuit BRIDGE (BTL) OR SINGLE-ENDED (SE) CONFIGURATION EXPLANATION As shown in Figure 2, the LM4913 consists of two input multiplexers (MUX) and two power amplifiers designed to drive loads that have a ...
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Application Information power dissipation for the same conditions. The LM4913 has two operational amplifiers driving a mono bridge load. The maximum internal power dissipation operating in the bridge mode is twice that of a single-ended amplifier. From Equa- tion (3), ...
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Application Information POWER SUPPLY BYPASSING As with any power amplifier, proper supply bypassing is critical for low noise performance and high power supply rejection. Applications that employ a 5V regulator typically use a 10µF in parallel with a 0.1µF filter ...
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Application Information muting it. The output coupling capacitors blocks the amplifi- er’s half supply DC voltage, protecting the headphones from the output voltage. DD Figure 3 also shows the suggested headphone jack electri- cal connections. The jack ...
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Application Information C (µF) B 0.01 0.1 0.22 0.47 1.0 2.2 In order eliminate "clicks and pops", all capacitors must be discharged before turn-on. Rapidly switching V allow the capacitors to fully discharge, which may cause "clicks and pops". AUDIO ...
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Application Information LM4913 DEMO BOARD ARTWORK FIGURE 5. Top Overlay FIGURE 6. Top Layer www.national.com (Continued) 200617B9 200617C0 14 FIGURE 7. Bottom Layer 200617C2 FIGURE 8. Composite Layer 200617C1 ...
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Revision History Rev 1.0 1.1 Date 8/05/05 Replaced the mktg outline (MUA08A, wrong one) (with the correct one (MXF10A) per Allan, then re-released D/S to the WEB. 7/25/06 Did a minor edit on the conn. dg, RO/MO- to RO/MO+ (per ...
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Physical Dimensions inches (millimeters) unless otherwise noted National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and ...