ICS290
TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK 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/Fall Time
Output Rise/Fall Time
Duty Cycle
Output Frequency Synthesis Error
Power-up Time
Symbol
F
IN
Conditions
Fundamental crystal
Clock input
Min.
5
3
0.314
Typ.
Max. Units
27
166
200
MHz
MHz
MHz
ns
ns
60
10
2
%
ppm
ms
ms
t
OF
t
OF
80% to 20%, high drive,
Note 1
80% to 20%, low drive,
Note 1
Note 2
Configuration Dependent
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
1.0
2.0
49-51
TBD
4
0.6
4
7
ms
One Sigma Clock Period Jitter
Maximum Absolute Jitter
Pin-to-Pin Skew
Note 1: Measured with 15 pF load.
t
ja
Configuration Dependent
Deviation from Mean.
Configuration Dependent
Low Skew Outputs
-250
50
+200
250
ps
ps
ps
Note 2: Duty Cycle is configuration dependent. Most configurations are min 45% / max 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.
93
78
65
20
Max. Units
°
C/W
°
C/W
°
C/W
°
C/W
Thermal Resistance Junction to Case
IDT™ / ICS™
TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER 6
ICS290
REV E 041207
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
