
14
INDUSTRIALTEMPERATURERANGE
IDT5T9890
EEPROM PROGRAMMABLE 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE FOR
LVEPECL(1)
Symbol
Parameter
Test Conditions
Min.
Typ.(2)
Max
Unit
InputCharacteristics
IIH
Input HIGH Current
VDD = 2.7V
VI = VDDQN/GND
—
±5
A
IIL
InputLOWCurrent
VDD = 2.7V
VI = GND/VDDQN
——
±5
VIK
ClampDiodeVoltage
VDD = 2.3V, IIN = -18mA
—
- 0.7
- 1.2
V
VIN
DCInputVoltage
- 0.3
—
3.6
V
VCM
DC Common Mode Input Voltage(3,5)
915
1082
1248
mV
VREF
Single-EndedReferenceVoltage(4,5)
—
1082
—
mV
VIH
DC Input HIGH
1275
—
1620
mV
VIL
DC Input LOW
555
—
875
mV
NOTES:
1. See RECOMMENDED OPERATING RANGE table.
2. Typical values are at VDD = 2.5V, +25°C ambient.
3. VCM specifies the maximum allowable range of (VTR + VCP) /2. Differential mode only.
4. For single-ended operation while in differential mode, REF[1:0]/VREF[1:0] is tied to the DC voltage VREF[1:0].
5. The reference clock input is capable of HSTL, eHSTL, LVEPECL, 1.8V or 2.5V LVTTL operation independent of the device output. (See Input/Output Selection table.)
DIFFERENTIAL INPUT AC TEST CONDITIONS FOR LVEPECL
Symbol
Parameter
Value
Units
VDIF
Input Signal Swing(1)
732
mV
VX
DifferentialInputSignalCrossingPoint(2)
1082
mV
VTHI
InputTimingMeasurementReferenceLevel(3)
CrossingPoint
V
tR, tF
InputSignalEdgeRate(4)
1
V/ns
NOTES:
1. The 732mV peak-to-peak input pulse level is specified to allow consistent, repeatable results in an automatic test equipment (ATE) environment. This device meets the VDIF (AC)
specification under actual use conditions.
2. A 1082mV crossing point level is specified to allow consistent, repeatable results in an automatic test equipment (ATE) environment. This device meets the VX specification
under actual use conditions.
3. In all cases, input waveform timing is marked at the differential cross-point of the input signals.
4. The input signal edge rate of 1V/ns or greater is to be maintained in the 20% to 80% range of the input waveform.