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    SA638

    Abstract: gm-c bandpass filter c5121 SA639 demodulator qpsk 5.1 audio amp IQ DEMOD IS-54 AGC, audio qpsk demod
    Text: Philips Semiconductors Preliminary specification IS-54 IF receiver SA638 DESCRIPTION PIN CONFIGURATION The SA638 is an IF receiver chip which serves the dual mode functionality required by the IS–54 standards for North American cellular telephones. It provides for both the analog FM AMPS


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    PDF IS-54 SA638 SA638 SR00909 gm-c bandpass filter c5121 SA639 demodulator qpsk 5.1 audio amp IQ DEMOD AGC, audio qpsk demod