CY28437 SpectraLinear, CY28437 Datasheet - Page 17

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

Rev 1.0, November 20, 2006
AC Electrical Specifications
Crystal
T
T
T
T
L
CPU at 0.7V (SSC refers to –0.5% spread spectrum)
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
ACC
DC
PERIOD
R
CCJ
DC
PERIOD
PERIOD
PERIOD
PERIOD
PERIOD
PERIOD
PERIOD
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
SKEW
Parameter
/ T
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
166-MHz CPUT and CPUC Period
200-MHz CPUT and CPUC Period
266-MHz CPUT and CPUC Period
333-MHz CPUT and CPUC Period
400-MHz CPUT and CPUC Period
100-MHz CPUT and CPUC Period, SSC Measured at crossing point V
133-MHz CPUT and CPUC Period, SSC Measured at crossing point V
166-MHz CPUT and CPUC Period, SSC Measured at crossing point V
200-MHz CPUT and CPUC Period, SSC Measured at crossing point V
266-MHz CPUT and CPUC Period, SSC Measured at crossing point V
333-MHz CPUT and CPUC Period, SSC Measured at crossing point V
400-MHz CPUT and CPUC Period, SSC Measured at crossing point V
100-MHz CPUT and CPUC Absolute period Measured at crossing point V
133-MHz CPUT and CPUC Absolute period Measured at crossing point V
166-MHz CPUT and CPUC Absolute period Measured at crossing point V
200-MHz CPUT and CPUC Absolute period Measured at crossing point V
266-MHz CPUT and CPUC Absolute period Measured at crossing point V
333-MHz CPUT and CPUC Absolute period Measured at crossing point V
400-MHz CPUT and CPUC Absolute period Measured at crossing point V
100-MHz CPUT and CPUC Absolute
period, SSC
133-MHz CPUT and CPUC Absolute
period, SSC
166-MHz CPUT and CPUC Absolute
period, SSC
200-MHz CPUT and CPUC Absolute
period, SSC
266-MHz CPUT and CPU C Absolute
period, SSC
333-MHz CPUT and CPUC Absolute
period, SSC
400-MHz CPUT and CPUC Absolute
period, SSC
CPU0 to CPU1
Description
The device will operate reliably with input
As an average over 1- s duration
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
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 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 at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Condition
DD
and 0.7V
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
DD
9.997001
7.497751
5.998201
4.998500
3.748875
2.999100
2.499250
9.997001
7.497751
5.998201
4.998500
3.748875
2.999100
2.499250
9.912001
7.412751
5.913201
4.913500
3.663875
2.914100
2.414250
9.912001
7.412751
5.913201
4.913500
3.663875
2.914100
2.414250
69.841
www.DataSheet4U.com
Min.
47.5
45
–
–
–
–
CY28437
10.00300
7.502251
6.001801
5.001500
3.751125
3.000900
2.500750
10.05327
7.539950
6.031960
5.026634
3.769975
3.015980
2.513317
10.08800
7.587251
6.086801
5.086500
3.836125
3.085900
2.585750
10.13827
7.624950
6.116960
3.854975
3.100980
2.598317
5.111634
Page 17 of 22
Max.
10.0
52.5
71.0
500
300
100
55
Unit
ppm
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
ns
ns
ps
%
%