Figure 5. Eye diagram of FM_NODE[1]± high-speed differential output.
7
Note: Measurement taken with a 2 -1 PRBS input to FM_NODE[0]±.
RANDOM JITTER
HP70841B
PATTERN
GENERATOR
HDMP-0452
± FM_NODE[0]
BYPASS[0]–
2
± DATA
N/C
BIAS TEE
BYPASS[1:4]–
K28.7
CLOCK
REFCLK
± TO_NODE[0]
1 kΩ
1.4 V
1062.5 MHz
2
106.25 MHz
1/10
HP70311A
CLOCK SOURCE
CH 1/2
106.25 MHz
TRIGGER
HP83480A
DIGITAL
COMMUNICATION
ANALYZER
Figure 6. Setup for measurement of random jitter.
DETERMINISTIC JITTER
HP70841B
PATTERN
GENERATOR
HDMP-0452
2
± FM_NODE[0]
± DATA
BYPASS[0]–
N/C
BIAS TEE
BYPASS[1:4]–
+K28.5 –K28.5
CLOCK
REFCLK
± TO_NODE[0]
1 kΩ
1062.5 MHz
1.4 V
2
106.25 MHz
1/10
HP70311A
CLOCK SOURCE
CH 1/2
TRIGGER
1/2
106.25 MHz
53.125 MHz
HP83480A
DIGITAL
COMMUNICATION
ANALYZER
Figure 7. Setup for measurement of deterministic jitter.
9
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
