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INDUSTRIALTEMPERATURERANGE
IDT5T9890
EEPROM PROGRAMMABLE 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER
TEST CIRCUITS AND CONDITIONS
Test Circuit for Differential Input(1)
VDD
VDDQN
D.U.T.
REF[1:0]
Pulse
Generator
3 inch, ~50
Transmission Line
3 inch, ~50
Transmission Line
VIN
VDDI
R1
R2
VDDI
R1
R2
DIFFERENTIAL INPUT TEST CONDITIONS
Symbol
VDD = 2.5V ± 0.2V
Unit
R1
100
R2
100
VDDI
VCM*2
V
HSTL: Crossing of REF[1:0] and REF[1:0]
eHSTL: Crossing of REF[1:0] and REF[1:0]
VTHI
LVEPECL: Crossing of REF[1:0] and REF[1:0]
V
1.8V LVTTL: VDDI/2
2.5V LVTTL: VDD/2
NOTE:
1. This input configuration is used for all input interfaces. For single-ended testing,
the REF[1:0] must be left floating. For testing single-ended in differential input
mode, the VIN should be floating.