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bt_audio.lbr
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<?xml version="1.0" encoding="utf-8"?>
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<text x="-6.6929" y="-3.302" size="1.4224" layer="25" font="vector" ratio="10" rot="R90">>NAME</text>
<text x="-5.08" y="-0.5461" size="1.4224" layer="27" font="vector" ratio="10">>VALUE</text>
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<symbol name="LM1972">
<description>LM1972 μPot 2-Channel 78dB Audio Attenuator with Mute</description>
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<text x="0" y="12.7" size="1.778" layer="95" align="bottom-center">LM1972</text>
<text x="-15.24" y="16.256" size="1.778" layer="95">>NAME</text>
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<deviceset name="LM1972" prefix="U">
<description><b>LM1972 μPot 2-Channel 78dB Audio Attenuator with Mute</b>
<p>The LM1972 is a digitally controlled 2-channel 78dB2• 3-Wire Serial Interface audio attenuator fabricated on a CMOS process. Each channel has attenuation steps of 0.5dB from 0dB–47.5dB, 1.0dB steps from 48dB–78dB, with a mute function attenuating 104dB. Its logarithmic attenuation curve can be customized through software to fit the desired application.
<p><a href="https://rocelec.widen.net/view/pdf/xs8qcbsz0v/lm1972.pdf">Datasheet.pdf</a></description>
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<connect gate="U1" pin="GND_AC5" pad="16"/>
<connect gate="U1" pin="GND_LOGIC" pad="8"/>
<connect gate="U1" pin="IN1" pad="4"/>
<connect gate="U1" pin="IN2" pad="20"/>
<connect gate="U1" pin="LOAD/SHIFT" pad="10"/>
<connect gate="U1" pin="OUT1" pad="2"/>
<connect gate="U1" pin="OUT2" pad="17"/>
<connect gate="U1" pin="VDD1" pad="13"/>
<connect gate="U1" pin="VDD2" pad="15"/>
<connect gate="U1" pin="VSS1" pad="18"/>
<connect gate="U1" pin="VSS2" pad="7"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
</drawing>
</eagle>