lm4897mm National Semiconductor Corporation, lm4897mm Datasheet
lm4897mm
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lm4897mm Summary of contents
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... Advanced pop and click circuitry eliminates noises during turn-on and turn-off transitions n 2.6V - 5.5V operation n Available in a space-saving SO package Applications n Mobile Phones n PDAs n Portable electronic devices 20050930 DS200509 May 2003 62dB (typ) 1.1W (typ) 350mW (typ) 0.1µA (typ) MSOP Marking 200509D0 Top View G - Boomer Family 97 - LM4897MM www.national.com ...
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Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit www.national.com 2 20050901 ...
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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 3) ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) Electrical ...
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Electrical Characteristics V The following specifications apply for the circuit shown in Figure 1 unless otherwise specified. Limits apply for T Symbol Parameter I Quiescent Power Supply Current DD I Shutdown Current SD V Output Offset Voltage OS P Output ...
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External Components Description (Figure 1) Components 1. R Inverting input resistance which sets the closed-loop gain in conjunction with R i high pass filter with Input coupling capacitor which blocks the DC voltage at the amplifiers input ...
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Typical Performance Characteristics Power Supply Rejection Ratio (PSRR 8Ω 1kHz 1µ Vripple = 200mVpp, Input terminated with 10Ω Power Supply Rejection Ratio (PSRR 8Ω 1kHz, ...
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Typical Performance Characteristics Power Derating - MSOP P = 670mW DMAX 8Ω Output Power vs Load Resistance Supply Current vs Shutdown Voltage (Continued) 200509B2 Clipping (Dropout) Voltage 200509B4 Shutdown Hysterisis Voltage 200509B6 7 ...
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Typical Performance Characteristics Shutdown Hysterisis Voltage Open Loop Frequency Response Fade- 5V 8Ω 1kHz 100kΩ 100kΩ www.national.com (Continued) Shutdown Hysterisis Voltage 200509B8 ...
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Typical Performance Characteristics Fade- 5V 8Ω 1kHz 47kΩ 47kΩ Fade- 5V 8Ω 1kHz 10kΩ ...
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Application Information BRIDGE CONFIGURATION EXPLANATION As shown in Figure 1 , the LM4897 has two operational amplifiers internally, allowing for a few different amplifier configurations. The first amplifier’s gain is externally config- urable, while the second amplifier is internally fixed ...
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Application Information Selection Of Input Capacitor Size Large input capacitors are both expensive and space hungry for portable designs. Clearly, a certain sized capacitor is needed to couple in low frequencies without severe attenu- ation. But in many cases the ...
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Application Information LM4897 FADE-IN / FADE-OUT www.national.com (Continued) FIGURE 2. Fade-In Behavior FIGURE 3. Fade-Out Behavior 12 20050931 20050932 ...
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Application Information LM4897 MSOP DEMO BOARD ARTWORK Top Overlay Bottom Layer (Continued) 20050999 200509A1 13 Top Layer 200509A0 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 MSOP Order Number LM4897MM NS Package Number MUB10A 2. A critical component is any component of a life ...