ICS275
TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER
EPROM VCXO AND SYNTHESIZER
Recommended Operation Conditions
Parameter
Min.
Typ.
Max.
+70
Units
° C
Ambient Operating Temperature (ICS275PG/PGLF)
Ambient Operating Temperature (ICS275PGI/PGILF)
Power Supply Voltage (measured in respect to GND)
Power Supply Ramp Time
0
-40
+85
° C
+3.135
+3.3
+3.465
4
V
ms
Reference crystal parameters
Refer to page 3
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3V 5ꢀ, Ambient Temperature -40 to +85°C
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Operating Voltage
VDD
3.135
3.465
V
Config. Dependent - See
VersaClock Estimates
mA
TM
Four 33.3333 MHz outs,
PDTS = 1, no load, Note 1
22
mA
Operating Supply Current
Input High Voltage
IDD
PDTS = 0, no load, Note 1
S2:S0
500
µA
V
Input High Voltage
V
VDD/2+1
VDD-0.5
VDD/2+1
IH
Input Low Voltage
V
S2:S0
0.4
0.4
V
V
V
V
V
V
IL
Input High Voltage, PDTS
Input Low Voltage, PDTS
Input High Voltage
V
IH
V
IL
V
ICLK
ICLK
IH
Input Low Voltage
V
VDD/2-1
IL
Output High Voltage
(CMOS High)
V
I
= -4 mA
VDD-0.4
2.4
OH
OH
Output High Voltage
Output Low Voltage
Short Circuit Current
V
I
I
= -8 mA (Low Drive);
= -12 mA (High Drive)
V
V
OH
OH
OH
V
I
I
= 8 mA (Low Drive);
= 12 mA (High Drive)
0.4
OL
OL
OL
I
Low Drive
High Drive
40
70
OS
mA
Nom. Output Impedance
Internal Pull-up Resistor
Internal Pull-down Resistor
Input Capacitance
Z
20
Ω
O
R
S2:S0, PDTS
CLK outputs
Inputs
190
120
4
kΩ
kΩ
pF
PUS
R
PD
C
IN
Note 1: Example with 25 MHz crystal input with four outputs of 33.3 MHz, no load, and VDD = 3.3 V.
IDT™ / ICS™ TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER 5
ICS275
REV D 102808