isppacclk5510v-01tn48i Lattice Semiconductor Corp., isppacclk5510v-01tn48i Datasheet - Page 14

• Manufacturer Part Number: isppacclk5510v-01tn48i
• Description: In-system Programmable Clock Generator With Universal Fan-out Buffer
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
Typical Performance Characteristics
-100
100
-50
-75
-25
75
50
25
25
20
15
10
1.2
0.8
0.6
0.4
0.2
0
5
0
1
0
*PFD = Phase/Frequency Detector
300
0
320
(Skew Mode = FINE, f
Typical Skew Error vs. Setting
3
Period Jitter vs. VCO Frequency
400
(Normalized to 640MHz)
400
VCO Frequency (MHz)
I
Skew Setting #
CCD
6
f
VCO
480
vs. f
500
V=4
(MHz)
VCO
VCO
9
= 600MHz)
560
600
12
PFD =
640
20 MHz
40 MHz
80 MHz
700
15
14
1.2
0.8
0.6
0.4
0.2
140
120
100
30
25
20
15
10
80
60
40
20
1
0
5
0
0
300
0
Typical Cycle-Cycle Jitter vs. VCO Frequency
V = 4
320
PFD =
40 MHz
V = 8
(LVCMOS 3.3V, Normalized to 320MHz)
350
Cycle-Cycle Jitter vs. VCO Frequency
5 0
PFD = 20 MHz
PFD = 80 MHz
V = 16
ispClock5500 Family Data Sheet
I
400
CCO
100
V = 32
400
Output Frequency (MHz)
VCO Frequency (MHz)
VCO Frequency (MHz)
vs. Output Frequency
PFD = 80 MHz
450
150
V=4
500
480
200
550
560
250
600
300
650
640
700
350