GC3021A 3.3V MIXER AND CARRIER REMOVAL CHIP
SLWS137A
6.5
QAM DEMODULATOR
The GC3021A chip can be used for carrier removal high speed digital modems. Examples include
digital microwave links and HDTV systems. For details in using the GC3021A chips in a digital modem
contact GRAYCHIP for the application note: BUILDING DIGITAL PSK AND QAM DEMODULATORS,
August 17, 1994.
6.6
DIAGNOSTICS
Eight diagnostic tests are defined on the following pages. Note that the CIN input to the chip must
be grounded.
Texas Instruments Incorporated
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