ICS291 Datasheet, PDF (5/8 Pages) Integrated Circuit Systems – Triple PLL Field Prog. Spread Spectrum Clock Synthesizer

PRELIMINARY INFORMATION
ICS291
Triple PLL Field Prog. Spread Spectrum Clock Synthesizer
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temperature -40 to +85°C
Parameter
Symbol
Conditions
Min.
Operating Voltage
VDD
3.135
VDDO Voltage
VDDO1 and VDDO2
1.80
Config. Dependent - See
VersaClock^TM Estimates
Operating Supply Current IDD _{Six 33.3333 MHz outs,}
VDD=VDDO=3.3 V;
PDTS = 1, no load, Note 1
PDTS = 0, no load
Input High Voltage
V_IH S2:S0
Input Low Voltage
V_IL S2:S0
Input High Voltage, PDTS V_IH
Input Low Voltage, PDTS V_IL
Input High Voltage
V_IH ICLK
Input Low Voltage
V_IL ICLK
Output High Voltage
(CMOS High)
V_OH I_OH = -4 mA
VDD/2+1
VDD-0.5
VDD/2+1
VDD-0.4
Output High Voltage
Output Low Voltage
Short Circuit Current
V_OH I_OH = -8 mA (Low Drive);
2.4
I_OH = -12 mA (High Drive) VDDO-0.4
V_OL I_OL = 8 mA (Low Drive);
I_OL = 12 mA (High Drive)
I_OS Low Drive
High Drive
Nom. Output Impedance
Internal Pull-up Resistor
Internal Pull-down
Resistor
Z_O
R_PUS
R_PD
S2:S0, PDTS
CLK outputs
Input Capacitance
C_IN Inputs
Typ.
25
500
±40
±70
20
190
120
4
Max.
3.465
VDD
Units
V
V
mA
mA
µA
V
0.4
V
V
0.4
V
V
VDD/2-1 V
V
V
0.4
V
mA
Ω
kΩ
kΩ
pF
Note 1: Example with 25 MHz crystal input with six outputs of 33.3 MHz, no load, and VDD = 3.3 V.
MDS 291 C
5
Revision 062205
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