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LM48822 Scheda tecnica(PDF) 15 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Il numero della parte LM48822
Spiegazioni elettronici  Ground-Referenced, Ultra High PSRR, Ultra Low Noise, 35mW/Channel Stereo Headphone Amplifier with CommonMode Sense, and I2C Volume Control
PDF  22 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM48822 Scheda tecnica(HTML) 15 Page - National Semiconductor (TI)

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PCB LAYOUT CONFIGURATION
Minimize trace impedance of the power, ground and all output
traces for optimum performance. Voltage loss due to trace
resistance between the LM48822 and the load results in de-
creased output power and efficiency. Trace resistance be-
tween the power supply and ground has the same effect as a
poorly regulated supply, increased ripple and reduced peak
output power. Use wide traces for power supply inputs and
amplifier outputs to minimize losses due to trace resistance,
as well as route heat away from the device. Proper grounding
improves audio performance, minimizes crosstalk between
channels and prevents switching noise from interfering with
the audio signal. Use of power and ground planes is recom-
mended.
Place all digital components and route digital signal traces as
far as possible from analog components and traces. Do not
run digital and analog traces in parallel on the same PCB lay-
er. If digital and analog signal lines must cross either over or
under each other, ensure that they cross in a perpendicular
fashion.
15
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