ICS556-04
LOW SKEW 1 TO 4 CLOCK BUFFER CRYSTAL BUFFER
IDT™ / ICS™
LOW SKEW 1 TO 4 CLOCK BUFFER 5
ICS556-04 REV E 051310
AC Electrical Characteristics
VDD = 2.5 V ±5%, Ambient Temperature -40 to +85 ° C, unless stated otherwise
VDD = 3.3 V ±5%, Ambient Temperature -40 to +85 ° C, unless stated otherwise
VDD = 5 V ±5%, Ambient Temperature -40 to +85 ° C, unless stated otherwise
Notes: 1. Between any two outputs with equal loading.
Thermal Characteristics
Parameter Symbol Conditions Min. Typ. Max. Units
Input Frequency 5 27 MHz
Output Rise Time t
OR
0.8 to 2.0 V, C
L
=15 pF 1.8 2.5 ns
Output Fall Time t
OF
2.0 to 0.8 V, C
L
=15 pF 1.8 2.5 ns
Output to output skew Note 1 Rising edges at VDD/2 0 50 ps
Duty Cycle Measured at VDD/2 45 50 55 %
Parameter Symbol Conditions Min. Typ. Max. Units
Input Frequency 5 27 MHz
Output Rise Time t
OR
0.8 to 2.0 V, C
L
=15 pF 0.6 1.0 ns
Output Fall Time t
OF
2.0 to 0.8 V, C
L
=15 pF 0.6 1.0 ns
Output to output skew Note 1 Rising edges at VDD/2 0 50 ps
Duty Cycle Measured at VDD/2 45 50 55 %
Phase Noise at 1MHz from
carrier
-125 dBc/Hz
Clock Jitter RMS 1KHz to 1MHz 6 ps
Parameter Symbol Conditions Min. Typ. Max. Units
Input Frequency 5 27 MHz
Output Rise Time t
OR
0.8 to 2.0 V, C
L
=15 pF 0.3 0.7 ns
Output Fall Time t
OF
2.0 to 0.8 V, C
L
=15 pF 0.3 0.7 ns
Output to output skew Note 1 Rising edges at VDD/2 0 50 ps
Duty Cycle Measured at VDD/2 45 50 55 %
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 150 ° C/W
θ
JA
1 m/s air flow 140 ° C/W
θ
JA
3 m/s air flow 120 ° C/W
Thermal Resistance Junction to Case θ
JC
40 ° C/W
