CY28437 SpectraLinear, CY28437 Datasheet - Page 20

• Manufacturer Part Number: CY28437
• Description: Clock Generator
• Manufacturer: SpectraLinear

Rev 1.0, November 20, 2006
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
Edge Rate
Edge Rate
T
ENABLE/DISABLE and SET-UP
T
R
CCJ
STABLE
Parameter
/ T
F
REF Rise and Fall Times
Rising edge rate
Falling edge rate
REF Cycle to Cycle Jitter
Clock Stabilization from Power-up
Figure 8. Single-ended Load Configuration HIGH DRIVE OPTION
Description
REF
USB
PCI/
(continued)
REF
USB
PCI/
Figure 7. Single-ended Load Configuration
Measured between 0.8V and 2.0V
Measurement at 1.5V
Measured between 0.8V and 2.0V
Measured between 0.8V and 2.0V
Condition
5pF
5pF
5pF
Measurement
Measurement
Measurement
5pF
5pF
5pF
5pF
5pF
Measurement
Measurement
Measurement
Measurement
Measurement
Point
Point
Point
Point
Point
Point
Point
Point
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Min.
0.5
1.0
1.0
–
–
CY28437
Page 20 of 22
Max.
1000
2.0
4.0
4.0
1.8
Unit
V/ns
V/ns
V/ns
ms
ps