CY28404 Cypress Semiconductor, CY28404 Datasheet - Page 16

• Manufacturer Part Number: CY28404
• Description: CK409-COMPLIANT CLOCK SYNTHESIZER
• Manufacturer: Cypress Semiconductor

Document #: 38-07510 Rev. *B
AC Electrical Specifications
Crystal
T
T
T
T
L
CPU at 0.7V
T
T
T
T
T
T
T
T
V
V
V
V
V
V
3V66
T
T
T
T
T
T
T
T
PCI/PCIF
T
T
T
T
T
T
T
DC
PERIOD
R
CCJ
ACC
DC
PERIOD
PERIOD
PERIOD
SKEW
CCJ
R
RFM
DC
PERIOD
PERIOD
HIGH
LOW
R
SKEW
CCJ
DC
PERIOD
PERIOD
HIGH
LOW
R
SKEW
HIGH
LOW
OX
OVS
UDS
RB
Parameter
/T
/ T
/ T
/ T
F
F
F
F
XIN Duty Cycle
XIN period
XIN Rise and Fall Times
XIN Cycle to Cycle Jitter
Long Term Accuracy
CPUT and CPUC Duty Cycle
100 MHz CPUT and CPUC Period
133 MHz CPUT and CPUC Period
200 MHz CPUT and CPUC Period
Any CPU to CPU Clock Skew
CPU Cycle to Cycle Jitter
CPUT and CPUC Rise and Fall Times
Rise/Fall Matching
Voltage High
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
3V66 Duty Cycle
Spread Disabled 3V66 Period
Spread Enabled 3V66 Period
3V66 High Time
3V66 Low Time
3V66 Rise and Fall Times
Any 3V66 to Any 3V66 Clock Skew
3V66 Cycle to Cycle Jitter
PCIF and 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
Any PCI clock to Any PCI clock Skew
Description
The device will operate reliably with
input duty cycles up to 30/70 but the
REF clock duty cycle will not be
within specification
When Xin is driven from an external
clock source
Measured between 0.3V
0.7V
As an average over 1-µs duration
Over 150 ms
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured from V
V
Determined as a fraction of
2*(T
Math average, see Figure 8
Math average, see Figure 8
See Figure 8. Measure SE
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 2.4V, High drive
Measurement at 0.4V, High drive
Measured between 0.4V and 2.4V,
High drive
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 2.4V, High drive
Measurement at 0.4V, High drive
Measured between 0.4V and 2.4V,
High drive
Measurement at 1.5V
OH
R
DD
= 0.525V
– T
F
)/ (T
Conditions
R
+ T
OL
F
= 0.175 to
)
DD
OX
OX
OX
OX
OX
OX
and
14.9955
14.9955
29.9910
29.9910
69.841
9.9970
7.4978
4.9985
4.9500
4.5500
–150
Min.
47.5
–0.3
12.0
12.0
175
660
250
0.5
0.5
45
45
45
–
–
–
–
–
–
–
–
–
–
V
15.0045
15.0799
30.0009
30.1598
HIGH
10.003
7.5023
5.0015
Max.
52.5
71.0
10.0
500
300
100
125
700
850
550
250
400
500
0.2
2.0
2.0
CY28404
55
20
55
55
–
–
–
–
–
–
Page 16 of 20
+0.3
Unit
ppm
mv
mv
mv
nS
nS
nS
pS
ns
ns
ps
ns
ns
ns
ps
ps
ps
ns
ns
ns
ns
ns
ps
ps
ns
ns
%
%
%
%
%
V
V
V