
ICS281
TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER
EPROM CLOCK SYNTHESIZER
IDT / ICS TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER 5
ICS281
REV F 051310
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temperature -40 to +85
° C
Note 1: Example with 25 MHz crystal input, three unloaded 33.3 MHz outputs and VDD = VDDO = 3.3 V.
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Operating Voltage
VDD
3.135
3.465
V
VDDO Voltage
1.80
VDD
V
Operating Supply Current
Input High Voltage
IDD
Config. Dependent - See
VersaClockTM Estimates
mA
Three 33.3333 MHz outs,
VDD=VDDO=3.3V;
PDTS = 1, no load, Note 1
20
mA
PDTS = 0, no load, Note 1
500
A
Input High Voltage
VIH
S2:S0
VDD/2+1
V
Input Low Voltage
VIL
S2:S0
0.4
V
Input High Voltage, PDTS
VIH
VDD-0.5
V
Input Low Voltage, PDTS
VIL
0.4
V
Input High Voltage
VIH
ICLK
VDD/2+1
V
Input Low Voltage
VIL
ICLK
VDD/2-1
V
Output High Voltage
(CMOS High)
VOH
IOH = -4 mA
VDD-0.4
V
Output High Voltage
VOH
IOH = -8 mA (Low Drive);
IOH = -12 mA (High Drive)
2.4
VDDO-0.4
V
Output Low Voltage
VOL
IOL = 8 mA (Low Drive);
IOL = 12 mA (High Drive)
0.4
V
Short Circuit Current
IOS
Low Drive
±40
mA
High Drive
±70
Nom. Output Impedance
ZO
20
Internal pull-up resistor
RPUS
S2:S0, PDTS
190
k
Internal pull-down
resistor
RPD
CLK outputs
120
k
Input Capacitance
CIN
Inputs
4
pF