Reference Clock Selection - Obsai Mode; Reference Clock Selection - Cpri Mode - Texas Instruments TLK3134 Data Manual

TLK3134
SLLS838F – MAY 2007 – REVISED DECEMBER 2009
CPRI Mode - Legal Clocking Mode Settings
TLK3134
REFCLK
Input (MHz) Multiplier Input (MHz) Multiplier
61.44000
61.44000
61.44000
61.44000
61.44000
122.88000
122.88000
122.88000
122.88000
122.88000
245.76000
245.76000
245.76000
245.76000
Nine/Ten Bit SERDES Mode - Clock Range Support (RATE[1:0] == 00) (Full)
REFCLK
Minimum Maximum
(MHz)
200.0000 375.0000
100.0000 187.5000
50.0000
800.0000 ########
400.0000 850.0000
200.0000 375.0000
400.0000 750.0000
200.0000 375.0000
100.0000 187.5000
200.0000 375.0000
100.0000 187.5000
50.0000
100.0000 187.5000
50.0000
25.0000
Figure A-7. Reference Clock Selection – 9/10 Bit SERDES Mode – Full Rate (SPEED[1:0] == 00)
132 APPENDIX A – Frequency Ranges Supported
Jitter SERDES
Cleaner REFCLK
OFF 61.44000
0.25 15.36000
0.5 30.72000
1 61.44000
2 122.88000
OFF 122.88000
0.25 30.72000
0.5 61.44000
1 122.88000
2 245.76000
OFF 245.76000
0.25 61.44000
0.5 122.88000
1 245.76000
Figure A-6. Reference Clock Selection – CPRI Mode
Jitter SERDES REFCLK
Cleaner Minimum Maximum
(MHz) Multiplier (MHz)
OFF 200.0000 375.0000
OFF 100.0000 187.5000
93.7500 OFF 50.0000
0.25 200.0000 375.0000
0.25 100.0000 212.5000
0.25 50.0000
0.5 200.0000 375.0000
0.5 100.0000 187.5000
0.5 50.0000
1 200.0000 375.0000
1 100.0000 187.5000
93.7500 1 50.0000
2 200.0000 375.0000
93.7500 2 100.0000 187.5000
46.8750 2 50.0000
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Product Folder Link(s):
SERDES
Serial Data Rate = f(SPEED[1:0]) (Mbps)
PLL Full (00) Half (01)
20 2457.600 1228.800
20 2457.600 1228.800
10 2457.600 1228.800
10 2457.600 1228.800
20 2457.600 1228.800
10 2457.600 1228.800
5 2457.600 1228.800
5 2457.600 1228.800
20 2457.600 1228.800
10 2457.600 1228.800
5 2457.600 1228.800
SERDES
PLL
(MHz) Multiplier Minimum Maximum
5
10
93.7500 20
5
10
93.7500 20
5
10
93.7500 20
5
10
93.7500 20
5
10
93.7500 20
Copyright © 2007–2009, Texas Instruments Incorporated
TLK3134
www.ti.com
Qrtr. (10)
614.400
614.400
614.400
614.400
614.400
614.400
614.400
614.400
614.400
614.400
614.400
Serial Data Rate (Mbps)
Full
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 4250.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00
2000.00 3750.00