Datasheet

Data Sheet AD9577
Rev. 0 | Page 11 of 44
Parameter
1
Min Typ Max Unit Test Conditions/Comments
2
LVPECL PERIOD AND CYCLE-TO-CYCLE JITTER (100.12 MHz OUTPUT)
25 MHz crystal used, fractional-N
operation, Nb = 100, FRAC = 15,
MOD = 125, Vx = 5, Dx = 5
Output Peak-to-Peak Period Jitter 13 ps p-p 10,000 cycles, average of 25 measurements
Output RMS Period Jitter 2 ps rms 10,000 cycles, average of 25 measurements
Output Peak-to-Peak, Cycle-to-Cycle Jitter 20 ps p-p 1,000 cycles, average of 25 measurements
Output RMS Cycle-to-Cycle Jitter 3 ps rms 1,000 cycles, average of 25 measurements
LVDS PERIOD AND CYCLE-TO-CYCLE JITTER (100.12 MHz OUTPUT)
25 MHz crystal used, fractional-N
operation, Nb = 100, FRAC = 15,
MOD = 125, Vx = 5, Dx = 5
Output Peak-to-Peak Period Jitter 17 ps p-p 10,000 cycles, average of 25 measurements
Output RMS Period Jitter 2 ps rms 10,000 cycles, average of 25 measurements
Output Peak-to-Peak, Cycle-to-Cycle Jitter 26 ps p-p 1,000 cycles, average of 25 measurements
Output RMS Cycle-to-Cycle Jitter 4 ps rms 1,000 cycles, average of 25 measurements
CMOS PERIOD AND CYCLE-TO-CYCLE JITTER (100.12 MHz OUTPUT)
25 MHz crystal used, 50 Ω load,
fractional-N operation, Nb = 100,
FRAC = 15, MOD = 125, Vx = 5, Dx = 5
Output Peak-to-Peak Period Jitter 25 ps p-p 10,000 cycles, average of 25 measurements
Output RMS Period Jitter 3 ps rms 10,000 cycles, average of 25 measurements
Output Peak-to-Peak, Cycle-to-Cycle Jitter 36 ps p-p 1,000 cycles, average of 25 measurements
Output RMS Cycle-to-Cycle Jitter 6 ps rms 1,000 cycles, average of 25 measurements
1
All period and cycle-to-cycle jitter measurements are made with a Tektronix DPO70604 oscilloscope.
2
x indicates either 2 or 3 for any given test condition.
CMOS REFERENCE CLOCK OUTPUT JITTER
Table 6.
Parameter Min Typ Max Unit Test Conditions/Comments
JITTER INTEGRATION BANDWIDTH Jitter measurement at 25 MHz is equipment limited
12 kHz to 5 MHz 680 1000 fs rms 25 MHz
200 kHz to 5 MHz 670 950 fs rms