ICS251_99 Datasheet, PDF (6/10 Pages) Integrated Device Technology – Field Programmable SS VersaClock Synthesizer

ICS251 DATASHEET
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temperature -40 to +85C
Parameter
Symbol
Conditions
Min.
Input Frequency
Fundamental Crystal
5
F_IN
Input Clock
3
Output Frequency
0.314
Output Rise Time
Output Fall Time
Duty Cycle
t_OR
20% to 80%, Note 1
t_OF
80% to 20%, Note 1
Note 2
40
PLL lock time from
power-up
Power-up time
PDTS goes high until stable
CLK output, Spread
Spectrum Off
PDTS goes high until stable
CLK output, Spread
Spectrum On
PDTS goes high until
spread spectrum is stable,
Spread Spectrum On
One Sigma Clock Period Jitter
Configuration Dependent
Maximum Absolute Jitter
t_ja
Deviation from Mean.
Configuration Dependent
Typ.
1
1
49-51
Max.
27
150
200
60
Units
MHz
MHz
MHz
ns
ns
%
4
10
ms
.6
2
ms
4
7
ms
10
50
ms
50
ps
+200
ps
Note 1: Measured with 15 pF load.
Note 2: Duty Cycle is configuration dependent. Most configurations are minimum 45% and maximum 55%.
Thermal Characteristics
Parameter
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Symbol Conditions
_JA
Still air
_JA
1 m/s air flow
_JA
3 m/s air flow
_JC
Min.
Typ.
150
140
120
40
Max. Units
C/W
C/W
C/W
C/W
FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
6
REVISION E 05/19/14