Example Performance Measurements
10
Example Performance Measurements
RMS Jitter and phase noise measurements were taken on the output clocks measured using
Soft Pin
Mode, EEPROM Page 5
with the on-board 50-MHz crystal as the PLL reference input. The differential
output clocks were measured using a balun to a Keysight/Agilent E5052B. Some phase noise plots are
provided below.
Table 7. Output RMS Jitter Summary – Soft Pin Mode, EEPROM Page 5
RMS Jitter (fs), 12k-20M
RMS Jitter (fs), 12k-20M
Output
Output Frequency / Type
Reference Plot
band, spurs off
band, spurs on
OUT0
156.25 MHz LVPECL
103
116
OUT1
156.25 MHz LVPECL
104
128
OUT2
125 MHz LVPECL
104
130
OUT3
125 MHz LVPECL
102
114
OUT4
133.33 MHz LVPECL
98
132
OUT5
133.33 MHz LVPECL
98
120
OUT6
100 MHz LVPECL
136
143
OUT7
100 MHz LVPECL
134
143
Figure 19. Soft Pin Mode, EEPROM Page 5, OUT0 – 156.25 MHz LVPECL (Spurs On)
43
SNAU184 – August 2015
LMK03328EVM User’s Guide
Copyright © 2015, Texas Instruments Incorporated