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Scans-00146580.pdf
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ERICSSON 9 September 1989 PBL 3781, PPB 3781/02 Low Voltage Speech Circuit Description The PBL 3781 and PBL 3781/02 are bipolar integrated speech circuits for use in electronic telephones. The c
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ECAD Model
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User Tagged Keywords
1N4004
891033
dynamic microphone
FET electret microphone
sidetone cancellation
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