GC3011A Datasheet, PDF (36/38 Pages) Texas Instruments – 3.3V DIGITAL RESAMPLER CHIP

GC3011A 3.3V DIGITAL RESAMPLER
SLWS136A
6)
If register 15 equals 0x2f and the lower nibble of register 14 is
non-zero, then acquisition is complete, go to step 8
7)
If register 15 is not 0x2f, or if the lower 4 bits of register 14
are 0, then acquisition has failed, go back to step 0.
8)
Set register 13 to 0x02 (enable keepalive).
Step 7, acquisition failing, occurs 1% to 10% of the time, and is almost always cleared by repeating
steps 0-6.
Once PLL lock is achieved, the RLL can be turned on by writing the desired values into addresses
6 and 7 (with LOAD_AB=3) and then writing 0x03 to address 8. This only applies to the master chip. The
RLL circuit is not used in the slave chips.
Texas Instruments Incorporated
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