
6
INDUSTRIALTEMPERATURERANGE
IDT5T940
PRECISION CLOCKGENERATOROC-192 APPLICATIONS
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE FOR LVTTL
Symbol
Parameter
Test Conditions
Min.
Typ.
Max
Unit
IIH
Input HIGH Current
VDD = 3.465V
—
±1
μA
IIL
InputLOWCurrent
VDD = 3.465V
—
±1
VIK
ClampDiodeVoltage
VDD = 2.375V, IIN = -18mA
—
- 0.7
- 1.2
V
VIN
DCInputVoltage
- 0.3
—
+3.465
V
VIH
DC Input HIGH
1.7
—
V
VIL
DC Input LOW
—
0.7
V
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE FOR LVPECL(1)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
InputCharacteristics
IIN
Input Current (CLKIN, REFIN)
VDD = 3.465V
-20
—
+20
μA
VCMR
CommonModeInputVoltage
1
—
VDD - 0.3
V
VDIF
DifferentialVoltageRequiredtoToggleInput
100
——
mV
OutputCharacteristics
VOH
Output Voltage HIGH (terminated through 50
Ω tied to VDD - 2V)(2)
VDD - 1.15
—
VDD - 0.9
V
VOL
OutputVoltageLOW(terminatedthrough50
ΩtiedtoVDD-2V)(2)
VDD - 1.95
—
VDD - 1.61
V
VSWING
Peak-to-PeakOutputVoltageSwing
0.55
—
0.93
V
NOTES:
1. VDD = 2.375 - 3.645V.
2. Not to exceed VDD - 0.05V.
POWER SUPPLY CHARACTERISTICS(1,2)
Symbol
Parameter
Test Conditions
Typ.
Max
Unit
IDD_PD
Power Supply Current
VDD = Max., PD = GND, All outputs unloaded
—
50
μA
ΔIDD
Power Supply Current per Input HIGH
VDD = Max., VIN = 2.375V
—
100
μA
(LVTTLinputsonly)
ITOT
Total Power Supply Current
VDD = Max., QOUT = 622MHz, All outputs unloaded
—
200
mA
NOTES:
1. These power consumption characteristics are for all the valid input interfaces and cover the worst case input and output interface combinations.
2. As a general requirement, these parts must be capable of operating at the maximum frequency under a nominal load at a reasonable operating temperature. That means that
these parts must not burn up under extended use in a typical application.
NOTE:
1. These inputs are normally wired to VDD, GND, or left floating. Internal termination resistors bias unconnected inputs to VDD/2. If these inputs are switched dynamically after powerup,
the function and timing of the outputs may be glitched, and the PLL may require additional tAQ time before all datasheet limits are achieved.
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Symbol
Parameter
Test Conditions
Min.
Max
Unit
VIHH
Input HIGH Voltage Level(1)
3-Level Inputs Only
VDD – 0.4
—
V
VIMM
Input MID Voltage Level(1)
3-Level Inputs Only
VDD/2 – 0.2 VDD/2 + 0.2
V
VILL
InputLOWVoltageLevel(1)
3-Level Inputs Only
—
0.4
V
VIN = VDD
HIGH Level
—
200
I3
3-Level Input DC Current
VIN = VDD/2
MID Level
–50
+50
μA
VIN = GND
LOW Level
–200
—