CDCE62005 Datasheet, PDF (20/76 Pages) Texas Instruments – Five/Ten Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs

CDCE62005
SCAS862 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com
OUTPUT TO OUTPUT ISOLATION
Measurement Method
1. Connect output 2 to a spectrum analyzer. Disable Outputs 0, 1, 3, 4.
2. Measure spurious on Output 2.
3. Enable aggressor channels individually per Table 3.
4. Measure spurious on Output 2.
5. The difference between the spurious levels of Output 2 before and after enabling the aggressor channels
determine the output-to-output isolation performance recorded.
Table 3. Output to Output Isolation
The Output to Output Isolation was tested under following settings are 25°C
Output 2
Measured Channel
In LVPECL Signaling 15.5 MHz
Output 2
Measured Channel
In LVPECL Signaling 93 MHz
Output 2
Measured Channel
In LVPECL Signaling 930 MHz
Output 0
Aggressor Channel
LVPECL 22.14 MHz
Output 1
Aggressor Channel
LVPECL 22.14 MHz
Output 3
Aggressor Channel
LVPECL 22.14 MHz
Output 4
Aggressor Channel
LVPECL 22.14 MHz
M SPUR Unit
–67
db
–60
db
–59
db
20
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