Piafe Programmable Isdn Audio Front End
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چکیده
Complete CODEC and FILTER system including: PCM ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTERS POWERFUL ANALOG FRONT END CAPABLE TO INTERFACE DIRECTLY: Microphone Dynamic, Piezo or Electrete Earpiece down to 100Ω or up to 150nF Loudspeakerdown to 50Ω or Buzzer up to 600nF. TRANSMIT BAND-PASS FILTER ACTIVE RC NOISE FILTER RECEIVE LOW-PASS FILTER WITH SIN X/X CORRECTION MU-LAW OR A-LAW SELECTABLE COMPANDING CODER AND DECODER PRECISION VOLTAGE REFERENCE
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