CY28411 Cypress Semiconductor, CY28411 Datasheet - Page 16

• Manufacturer Part Number: CY28411
• Description: Clock Generator for Intel Alviso Chipset
• Manufacturer: Cypress Semiconductor

Document #: 38-07594 Rev. *B
AC Electrical Specifications
Test and Measurement Set-up
For PCI Single-ended Signals and Reference
The following diagram shows the test load configurations for
the single-ended PCI, USB, and REF output signals.
T
T
T
T
T
T
REF
T
T
T
T
T
ENABLE/DISABLE and SET-UP
T
T
T
PERIOD
PERIODAbs
HIGH
LOW
R
CCJ
DC
PERIOD
PERIODAbs
R
CCJ
STABLE
SS
SH
Parameter
/ T
/ T
F
F
Period
Absolute Period
USB high time
USB low time
Rise and Fall Times
Cycle to Cycle Jitter
REF Duty Cycle
REF Period
REF Absolute Period
REF Rise and Fall Times
REF Cycle to Cycle Jitter
Clock Stabilization from Power-up
Stopclock Set-up Time
Stopclock Hold Time
Description
REF
USB
PCI/
(continued)
Figure 13. Single-ended Load Configuration
33Ω
22Ω
22Ω
Measurement at 1.5V
Measurement at 1.5V
Measurement at 2.4V
Measurement at 0.4V
Measured between 0.8V and 2.0V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measured between 0.8V and 2.0V
Measurement at 1.5V
60Ω
60Ω
60Ω
Condition
5pF
Measurement
5pF
5pF
Measurement
Measurement
Point
Point
Point
20.48125 21.18542
20.83125
68.82033
69.8203
8.094
7.694
Min.
10.0
1.0
0.5
45
–
–
–
0
20.83542
70.86224
CY28411
69.8622
10.036
9.836
Page 16 of 19
Max.
1000
350
2.0
2.0
1.8
55
–
–
V/ns
Unit
ms
ns
ns
ns
ns
ns
ps
ns
ns
ps
ns
ns
%