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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM4917SD датащи(PDF) 1 Page - National Semiconductor (TI) |
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LM4917SD датащи(HTML) 1 Page - National Semiconductor (TI) |
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1 / 18 page  LM4917 Ground-Referenced, 95mW Stereo Headphone Amplifier General Description The LM4917 is a stereo, output capacitor-less headphone amplifier capable of delivering 95mW of continuous average power into a 16 Ω load with less than 1% THD+N from a single 3V power supply. The LM4917 provides high quality audio reproduction with minimal external components. A ground referenced output eliminates the output coupling capacitors typically required by single-ended loads, reducing component count, cost and board space consumption. This makes the LM4917 ideal for mobile phones and other portable equipment where board space is at a premium. Eliminating the output coupling ca- pacitors also improves low frequency response. The LM4917 operates from a single 1.4V to 3.6V power supply, features low 0.02% THD+N and 70dB PSRR. Inde- pendent right/left channel low-power shutdown controls pro- vide power saving flexibility for mono/stereo applications. Superior click and pop suppression eliminates audible tran- sients during start up and shutdown. Short circuit and ther- mal overload protection protects the device during fault con- ditions. Key Specifications j Improved PSRR at 1kHz 70dB (typ) j Power Output at VDD = 3V, R L =16 Ω, THD % 1% 95mW (typ) j Shutdown Current 0.01µA (typ) Features n Ground referenced outputs n High PSRR n Available in space-saving TSSOP package n Ultra low current shutdown mode n Improved pop & click circuitry eliminates noises during turn-on and turn-off transitions n 1.4 – 3.6V operation n No output coupling capacitors, snubber networks, bootstrap capacitors n Shutdown either channel independently Applications n Notebook PCs n Desktop PCs n Mobile Phone n PDAs n Portable electronic devices Block Diagram Boomer® is a registered trademark of National Semiconductor Corporation. 200893B8 FIGURE 1. Circuit Block Diagram November 2004 © 2004 National Semiconductor Corporation DS200893 www.national.com |
Аналогичный номер детали - LM4917SD |
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Аналогичное описание - LM4917SD |
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