GC5016 Datasheet, PDF (46/88 Pages) Texas Instruments – WIDEBAND QUAD DIGITAL DOWN CONVERTER/ UP CONVERTER

GC5016
SLWS142G − JANUARY 2003 − REVISED NOVEMBER 2005
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D Using the split IQ mode that merges channels A and B together to give more taps (split_IQ=1).
D Using the double rate output mode (tout_rate=2).
The output from the transmit output format block can be rounded to 12, 14, 16 or 22 bits using the toutf_rnd_AB
control for the AO and BO ports, and toutf_rnd_CD control for the CO and DO ports. The settings are ”3” for 12 bits,
”2” for 14 bits, ”1” for 16 bits and ”0” for 22 bits. The output values are rounded into the MSBs of the final output word
and the unused LSBs are cleared. The tout_res control must also be set to 1 for the 22 bit output rounding option
to be used.
The MSB of the final output words can be inverted (toutf_offsetbin=1) to generate the offset binary output format
required by many DACs.
NOTE:The MSB of the GC5016 output port must be connected to the MSB of the receiving device’s input port.
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