ICS650-40A
ETHERNET SWITCH CLOCK SOURCE CLOCK SYNTHESIZER
IDT™ / ICS™
ETHERNET SWITCH CLOCK SOURCE 4
ICS650-40A REV D 102709
DC Electrical Characteristics
VDD=3.3 V ±5%, VDDOA = VDDOB= 3.3 V ±5% Ambient Temperature 0 to +70° C
Note: 1. Nominal switching threshold is VDD/2.
AC Electrical Characteristics
VDD=3.3 V ±5%, VDDOA = VDDOB = 3.3 V ±5%, C
L
=10 pF Ambient Temperature 0 to +70° C
Parameter Symbol Conditions Min. Typ. Max. Units
Operating Voltage VDD 3.15 3.45 V
Output Operating Voltage VDDOA,
B
2.375 3.45 V
Input High Voltage, ICLK V
IH
Note 1 VDD/2+0.5 V
Input Low Voltage, ICLK V
IL
Note 1 VDD/2-0.5 V
Input High Voltage, S1:S0:OE V
IH
2VDDV
Input Low Voltage, S1:S0:OE V
IL
0.8 V
Output High Voltage V
OH
I
OH
= -12 mA,
3.3 V VDDO
2.0 V
Output Low Voltage V
OL
I
OL
= 12 mA, 3.3
V VDDO
0.4 V
Operating Supply Current IDD No load 40 mA
IDD at Output Disable
Condition(OE low)
No load 16 mA
Short Circuit Current I
OS
Each output ±70 mA
Internal Pull-up Resistor R
PU
OE pin 300 kΩ
Internal Pull-down Resistor R
PD
CLK outputs 300 kΩ
Parameter Symbol Conditions Min. Typ. Max. Units
Input Frequency 25 MHz
Output Rise Time t
OR
20% to 80% of VDD 0.6 ns
Output Fall Time t
OF
80% to 20% of VDD 0.6 ns
Output Clock Duty Cycle At VDD/2 40 49-51 60 %
Frequency Error All clocks 0 ppm
Output to Output Skew
between clocks of the same
frequency
250 ps
Absolute Jitter, Short-term
P-P
Variation from mean ±120 ps
Absolute Jitter, Short-term
C-C
Variation from mean ±120 ps
Long-term Jitter 1000 clock cycles 600 ps
