LM4663MT National Semiconductor, LM4663MT Datasheet
LM4663MT
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LM4663MT Summary of contents
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... Stereo headphone amplifier. Applications n Portable computers n Desktop computers n Multimedia Monitors 2.1W (typ) (Power 0.2% (typ) Connection Diagram See NS Package Number MTC24 DS101269-1 DS101269 January 2000 83% (typ) 69% (typ) 22mA (typ) 2µA (typ) (Headphone) 0.15% (typ) 4.5V to 5.5V TSSOP Package DS101269-2 Top View Order Number LM4663MT (TSSOP Package) www.national.com ...
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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 Input Voltage Power Dissipation (Note 3) Load Resistance ESD Susceptibility(Note 4) Pins 5,7,18,20 ESD Susceptibility (Note 5) Pins 5,7,18,20 Junction Temperature (Note 6) Storage Temperature ...
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Electrical Characteristics The following specifications apply for V Limits apply for T = 25˚C. A Symbol Parameter Headphone Amplifiers Power Out Per Channel P O THD+N Distortion + Noise V Output Noise Voltage, RMS NOISE Power Supply Rejection Ratio PSRR ...
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Typical Performace Characteristics Class D Amplifier In-Band Output Spectrum Class D Amplifier THD + N vs Power vs Frequency www.national.com (Continued) In-Band Output Spectrum DS101269-12 THD + N vs Frequency vs Power DS101269-14 Headphone THD + N vs Frequency vs ...
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Applications Information FIGURE 1. Operating on a single 5V supply, this recommended application circuit is a complete solution with 2W Class D amplifiers that drive 4 Suggested Application Circuit The LM4663 achieves its specified performance using the recommended application circuit ...
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Applications Information Bypass Pin Capacitor In order to achieve the largest unclipped output voltage swing reference voltage for the circuit is derived inter- nally by a resistor divider from the power supply voltage. To reduce sensitivity to audio ...
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Applications Information FIGURE 2. At power-up, the LP3740 forces the LM4663 into shutdown, which prevents abnormal quiescent current flow through the amplifier. Once V CC FIGURE 3. Recommended PC board layout: Component side silkscreen FIGURE 4. Recommended PC board layout: ...
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... TABLE 4. Suggested PC Board Bill-of-Materials for recommended PC boards. (See Figures 1 and 3 through 7) Component Footprint C1-C4 0805 C5-C7 7243 C8,C10,C12,C14 0805 C9,C11,C13,C15 3216 C16-C18 0805 C19-C22 0805 R5a,R6a 0805 R7a 0805 L1-L4 D03316P−223 U1 LM4663MT www.national.com (Continued) Type Value Size SMD/Top 1µF SMD/Top 220µF SMD/Top .47µF SMD/Top 2.2µF SMD/Top 1µF SMD/Bot 1µF SMD 100k SMD 1k SMD 22µ ...
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Applications Information (Continued) FIGURE 8. Recommended LM4663 PC Board 9 DS101269-35 www.national.com ...
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... 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 specifications. inches (millimeters) unless otherwise noted Order Number LM4663MT NS Package Number MTC24 2 ...