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LM4549A Datasheet(PDF) 7 Page - National Semiconductor (TI) |
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LM4549A Datasheet(HTML) 7 Page - National Semiconductor (TI) |
7 / 28 page Typical Application APPLICATION HINTS • The LM4549A must be initialized by using RESET# to perform a Power On Reset as shown in the Power On Reset Timing Diagram • V REF must be pulled high to AVDD witha10k Ω resistor to ensure correct operation • Don’t leave unused inputs floating. Tie all unused inputs together and connect to Analog Ground through a capacitor (e.g. 0.1 µF) • Do not leave CD_GND floating when using the CD stereo input. CD_GND is the AC signal reference for the CD channels and should be connected to the CD source ground (Analog Ground may also be acceptable) througha1µF capacitor • If using a non-standard AC Link controller take care to keep the SYNC and SDATA_IN signals low during Cold Reset to avoid entering the ATE or Vendor test modes by mistake • The PC_Beep input should be muted if not used since it defaults to 0 dB gain on reset, unlike the mute default of the other analog inputs 20029903 FIGURE 1. LM4549A Typical Application Circuit, Single Codec, 1 Vrms inputs www.national.com 7 |
Número de pieza similar - LM4549A |
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Descripción similar - LM4549A |
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