CDCE62005 Datasheet, PDF (58/76 Pages) Texas Instruments – Five/Ten Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs

CDCE62005
SCAS862 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com
VCO Select
Table 34 illustrates how to control the dual voltage controlled oscillators.
Bit Name →
Register.Bit →
Table 34. CDCE62005 VCO Select
VCO Select
SELVCO
6.0
0
1
VCO CHARACTERISTICS
VCO Range
Low
High
Fmin (MHz)
1750
2040
Fmax (MHz)
2046
2356
Prescaler
Table 35 shows how to configure the prescaler.
Table 35. CDCE62005 Prescaler Settings
SETTINGS
SELPRESCB
SELPRESCA
6.2
6.1
0
0
0
1
1
0
1
1
DIVIDE RATIO
5
4
3
2
Charge Pump Current Settings
Table 36 provides the settings for the charge pump:
Bit Name →
Register.Bit →
Table 36. CDCD62005 Charge Pump Settings
ICPSEL3
6.19
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
CHARGE PUMP SETTINGS
ICPSEL2
ICPSEL1
6.18
6.17
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
ICPSEL0
6.16
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CHARGE PUMP
CURRENT
50 µA
100 µA
150 µA
200 µA
300 µA
400 µA
600 µA
750 µA
1 mA
1.25 mA
1.5 mA
2 mA
2.5 mA
3 mA
3.5 mA
3.75 mA
58
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