ICS271
TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER
EPROM VCXO AND SYNTHESIZER
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS271. These ratings, which are
standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these
or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical
parameters are guaranteed only over the recommended operating temperature range.
Parameter
Supply Voltage, VDD
Inputs
Clock Outputs
Storage Temperature
Soldering Temperature
Junction Temperature
Condition
Referenced to GND
Referenced to GND
Referenced to GND
Max 10 seconds
Min.
-0.5
-0.5
-65
Typ.
Max.
7
VDD+0.5
VDD+0.5
150
260
125
Units
V
V
V
°
C
°
C
°
C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature (commercial)
Ambient Operating Temperature (industrial)
Power Supply Voltage (measured in respect to GND)
Power Supply Ramp Time
Reference crystal parameters
Min.
0
-40
+3.135
Typ.
Max.
+70
+85
Units
°
C
°
C
V
ms
+3.3
+3.465
4
Refer to page 3
DC Electrical Characteristics
Unless stated otherwise,
VDD, VDDO = 3.3 V ±5%,
Ambient Temperature -40 to +85° C
Parameter
Operating Voltage
VDDO Voltage
Symbol
VDD
Conditions
VDDO1 and VDDO2
Config. Dependent - See
VersaClock
TM
Estimates.
Min.
3.135
1.80
Typ.
Max.
3.465
VDD
Units
V
V
mA
Operating Supply Current
Input High Voltage
IDD
Six 33.3333 MHz outs,
VDD=VDDO=3.3 V;
PDTS = 1, no load, Note 1
PDTS = 0, no load
S2:S0
S2:S0
VDD-0.5
VDD/2+1
25
mA
500
0.4
0.4
Input High Voltage
Input Low Voltage
Input High Voltage, PDTS
Input Low Voltage, PDTS
V
IH
V
IL
V
IH
V
IL
µA
V
V
V
V
IDT™ / ICS™
TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER 5
ICS271
REV D 081809
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
