cy28445-5 SpectraLinear Inc, cy28445-5 Datasheet - Page 23

• Manufacturer Part Number: cy28445-5
• Description: Clock Generator For Intel Calistoga Chipset
• Manufacturer: SpectraLinear Inc

Rev 1.1, June 30, 2007
AC Electrical Specifications
Note:
Test and Measurement Set-up
For PCI Single-ended Signals and Reference
The following diagram shows the test load configuration of single-ended PCI, USB output signals.
T
T
T
T
T
L
27_M at 3.3V
T
T
T
T
T
T
L
REF at 3.3V
T
T
T
T
T
T
L
ENABLE/DISABLE and SET-UP
T
T
T
1. Measured under typical condition.
ACC
ACC
ACC
PERIODAbs
HIGH
LOW
R
CCJ
DC
PERIOD
HIGH
LOW
R
CCJ
DC
PERIOD
PERIODAbs
R
SKEW
CCJ
STABLE
SS
SH
Parameter
/ T
/ T
/ T
F
F
F
Absolute Period
48_M High time
48_M Low time
Rising and Falling Edge Rate
Cycle to Cycle Jitter
48M Long Term Accuracy
Duty Cycle
Spread Disabled 27M Period
Spread Enabled 27M Period
27_M High time
27_M Low time
Rising and Falling Edge Rate
Cycle to Cycle Jitter
27_M Long Term Accuracy
REF Duty Cycle
REF Period
REF Absolute Period
REF Rising and Falling Edge Rate
REF Clock to REF Clock
REF Cycle to Cycle Jitter
Long Term Accuracy
Clock Stabilization from Power-up
Stopclock Set-up Time
Stopclock Hold Time
Description
Figure 14. Single-ended PCI, USB Load Configuration
(continued)
33Ω
Measurement at 1.5V
Measurement at 2.4V
Measurement at 0.4V
Measured between 0.8V and 2.0V
Measurement at 1.5V
Measured at crossing point V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 2.0V
Measurement at 0.8V
Measured between 0.8V and 2.0V
Measurement at 1.5V
Measured at crossing point V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measured between 0.8V and 2.0V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Condition
OX
OX
5 pF
20.48125
68.82033
69.8203
27.000
27.000
8.094
7.694
Min.
10.5
10.5
10.0
1.0
1.0
0.9
45
45
–
–
–
–
–
–
–
–
0
CY28445-5
21.18542
70.86224
27.0547
27.0547
69.8622
Page 23 of 26
10.836
11.036
Max.
1000
350
500
300
100
500
2.2
4.0
4.0
1.8
55
55
–
–
0
–
–
V/ns
Unit
V/ns
ppm
V/ns
ppm
ppm
ms
ns
ns
ns
ps
ns
ns
ns
ps
ns
ns
ps
ps
ns
ns
%
%