ICS252
FIELD PROGRAMMABLE DUAL OUTPUT SS VERSACLOCK SYNTHESIZER
EPROM CLOCK SYNTHESIZER
AC Electrical Characteristics
Unless stated otherwise,
VDD = 3.3 V ±5%,
Ambient Temperature -40 to +85° C
Parameter
Input Frequency
Output Frequency
Output Rise Time
Output Fall Time
Duty Cycle
Power-up Time
Symbol
F
IN
Conditions
Fundamental Crystal
Input Clock
Min.
5
2
0.314
Typ.
Max. Units
27
150
200
MHz
MHz
MHz
ns
ns
60
10
2
%
ms
ms
t
OR
t
OF
20% to 80%, Note 1
80% to 20%, Note 1
Note 2
PLL lock time from
power-up
PDTS goes high until
stable CLK output,
Spread Spectrum Off
PDTS goes high until
stable CLK output,
Spread Spectrum On
40
1
1
49-51
4
.6
4
7
ms
One Sigma Clock Period Jitter
Maximum Absolute Jitter
Note 1: Measured with 15 pF load.
t
ja
Configuration Dependent
Deviation from Mean.
Configuration Dependent
50
+200
ps
ps
Note 2: Duty Cycle is configuration dependent. Most configurations are minimum 45% and maximum 55%.
Thermal Characteristics
Parameter
Thermal Resistance Junction to
Ambient
Symbol
θ
JA
θ
JA
θ
JA
θ
JC
Conditions
Still air
1 m/s air flow
3 m/s air flow
Min.
Typ.
150
140
120
40
Max. Units
°
C/W
°
C/W
°
C/W
°
C/W
Thermal Resistance Junction to Case
IDT®
FIELD PROGRAMMABLE DUAL OUTPUT SS VERSACLOCK SYNTHESIZER 6
ICS252
REV J 052010
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
