Datasheet

ADG3248
Rev. A | Page 8 of 12
25
20
15
10
5
0
t
TRANS
(ns)
–40 –20 0 20 40 60 80 85
TEMPERATURE (°C)
04404-015
V
CC
= 2.5V
V
CC
= 3.3V
Figure 15. Transition Time vs. Temperature
100
90
80
70
60
50
40
30
20
10
0
JITTER (ps p-p)
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9
DATA RATE (Gbps)
04404-016
V
CC
= 3.3V
V
A
= 1.5V p-p
20dB ATTENUATION
Figure 16. Jitter vs. Data Rate; PRBS 31
100
95
90
85
80
75
70
65
60
55
50
EYE WIDTH (%)
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9
DATA RATE (Gbps)
04404-017
V
CC
= 3.3V
V
A
= 1.5V p-p
20dB ATTENUATION
% EYE WIDTH = ((CLOCK PERIOD –
JITTER p-p)/CLOCK PERIOD) × 100%
Figure 17. Eye Width vs. Data Rate; PRBS 31
04404-018
20dB
ATTENUATION
TA = 25°C
V
CC
= 3.3V
V
IN
= 2V p-p
38.7mV/DIV
133.7ps/DIV
Figure 18. Eye Pattern; 1.244 Gbps, V
CC
= 3.3 V, PRBS 31
04404-019
20dB
ATTENUATION
TA = 25°C
V
CC
= 2.5V
V
IN
= 1V p-p
20mV/DIV
166.3ps/DIV
Figure 19. Eye Pattern; 1 Gbps, V
CC
= 2.5 V, PRBS 31