ICS345 Datasheet, PDF (5/9 Pages) Integrated Circuit Systems – Triple PLL Field Programmable SS VersaClock Synthesizer

ICS345
TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
EPROM CLOCK SYNTHESIZER
Recommended Operation Conditions
Parameter
Ambient Operating Temperature (ICS345RP)
Ambient Operating Temperature (ICS345RIP)
Power Supply Voltage (measured in respect to GND)
Power Supply Ramp Time
Min.
0
-40
+3.15
Typ.
+3.3
Max.
+70
+85
+3.45
4
Units
°C
°C
V
ms
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temperature -40 to +85° C
Parameter
Symbol
Conditions
Min. Typ.
Operating Voltage
VDD
3.15
Operating Supply Current IDD Configuration Dependent -
Input High Voltage
See VersaClock^TM
Estimates
Nine 33.3333 MHz outs,
23
PDTS = 1, no load, Note 1
PDTS = 0, no load, Note 1
20
Input High Voltage
V_IH S2:S0
2
Input Low Voltage
V_IL S2:S0
Input High Voltage, PDTS V_IH
VDD-0.5
Input Low Voltage, PDTS V_IL
Input High Voltage
V_IH ICLK
VDD/2+1
Input Low Voltage
V_IL ICLK
Output High Voltage
(CMOS High)
V_OH I_OH = -4 mA
VDD-0.4
Output High Voltage
Output Low Voltage
Short Circuit Current
Nominal Output
Impedance
V_OH
V_OL
I_OS
Z_O
I_OH = -12 mA
I_OL = 12 mA
2.4
±70
20
Internal Pull-up Resistor R_PUS S2:S0, PDTS
250
Internal Pull-down
R_PD CLK outputs
525
Resistor
Input Capacitance
C_IN Inputs
4
Max.
3.45
Units
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 nine outputs of 33.3 MHz, no load, and VDD = 3.3 V.
IDT™ / ICS™ TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER 5
ICS345
REV K 110207