LM4870M National Semiconductor, LM4870M Datasheet
LM4870M
Specifications of LM4870M
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LM4870M Summary of contents
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... External gain configuration capability Applications n Personal computers n Desktop computers n Low voltage audio system Connection Diagram See NS Package Number M16A DS100094-1 DS100094 August 2000 0.5% (max) at 1kHz at 10% THD+N 1.5W (typ) 0.6µA (typ) Small Outline Package DS100094-2 Top View Order Number LM4870M 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 Storage Temperature Input Voltage Power Dissipation ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) Junction Temperature Soldering Information Small Outline Package Vapor Phase (60 sec ...
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External Components Description Components 1. R Inverting input resistance which sets the closed-loop gain in conjunction with R i forms a high pass filter with Input coupling capacitor which blocks DC voltage at the amplifier’s input terminals. ...
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Typical Performance Characteristics Supply Current Distribution vs Temperature DS100094-19 Output Power vs Supply Voltage DS100094-22 Power Supply Rejection Ratio DS100094-24 Application Information BRIDGE CONFIGURATION EXPLANATION As shown in Figure 1 , the LM4870 has two operational am- plifiers internally, allowing ...
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Application Information ing excessive clipping which will damage high frequency transducers used in loudspeaker systems, please refer to the Audio Power Amplifier Deslgn section. A bridge configuration, such as the one used in Boomer Au- dio Power Amplifiers, also creates ...
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Application Information ceeded momentarily, due to the discharging time constant of the bias-pin voltage. This time constant is established by the two 50k resistors (in parallel) with the series bypass capaci- tor value. When a set of headphones are plugged ...
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Application Information are required for 1.0W of output power. Since 5V rails are common chosen to be the supply voltage. Supply volt- age ( maximum of 5.5V) above the required 4.6V will allow the LM4870 to ...
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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 Small Outline Package (M) Order Number LM4870M NS Package Number M16A 2. A critical component is any component of a life ...