
CY28405-2
Document #: 38-07511 Rev. *C
Page 13 of 16
3V66
T
DC
T
PERIOD
T
PERIOD
T
HIGH
T
LOW
T
R
/ T
F
3V66 Duty Cycle
Spread Disabled 3V66 Period
Spread Enabled 3V66 Period
3V66 High Time
3V66 Low Time
3V66 Rise and Fall Times
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
Measurement at 1.5V
45
55
%
ns
ns
ns
ns
ns
14.9955
14.9955
4.9500
4.5500
0.5
15.0045
15.0799
–
–
2.0
T
SKEW
T
CCJ
PCI/PCIF
T
DC
T
PERIOD
T
PERIOD
T
HIGH
T
LOW
T
R
/ T
F
Any 3V66 to Any 3V66 Clock Skew
3V66 Cycle to Cycle Jitter
–
–
250
250
ps
ps
PCI Duty Cycle
Spread Disabled PCIF/PCI Period
Spread Enabled PCIF/PCI Period
PCIF and PCI High Time
PCIF and PCI Low Time
PCIF and PCI Rise and Fall Times
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
Measurement at 1.5V
45
55
%
ns
ns
ns
ns
ns
29.9910
29.9910
12.0
12.0
0.5
30.0009
30.1598
–
–
2.0
T
SKEW
T
CCJ
DOT
T
DC
T
PERIOD
T
HIGH
T
LOW
T
R
/ T
F
Any PCI clock to Any PCI Clock Skew
PCIF and PCI Cycle to Cycle Jitter
–
–
500
250
ps
ps
Duty Cycle
Period
USB High Time
USB Low Time
Rise and Fall Times
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
Measurement @1.5V
45
55
%
ns
ns
ns
20.8271
8.094
7.694
20.8396
10.036
9.836
1.0
2.0
ns
T
CCJ
T
SKEW
USB
T
DC
T
PERIOD
T
HIGH
T
LOW
T
R
/ T
F
Cycle to Cycle Jitter
Any 48 MHz to 48 MHz clock skew
–
–
350
500
ps
ps
Duty Cycle
Period
USB High Time
USB Low Time
Rise and Fall Times
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
Measurement @1.5V
45
55
%
ns
ns
ns
20.8271
8.094
7.694
20.8396
10.036
9.836
1.0
2.0
ns
T
CCJ
T
SKEW
REF
T
DC
T
PERIOD
T
R
/ T
F
Cycle to Cycle Jitter
Any 48 MHz to 48 MHz Clock Skew
–
–
350
500
ps
ps
REF Duty Cycle
REF Period
REF Rise and Fall Times
Measurement at 1.5V
Measurement at 1.5V
Measured between 0.8V and
2.0V
Measurement at 1.5V
Measurement @1.5V
45
55
%
ns
V/ns
69.827
1.0
69.855
4.0
T
CCJ
T
SKEW
REF Cycle to Cycle Jitter
Any REF to REF clock skew
–
–
1000
500
ps
ps
AC Electrical Specifications
(continued)
Parameter
Description
Condition
Min.
Max.
Unit