NB3N1900K
www.onsemi.com
9
Table 10. ELECTRICAL CHARACTERISTICS − CLOCK INPUT PARAMETERS
(V
DD
= V
DDA
= 3.3 V ±5%, T
A
= −10°C to +70°C), See Test Loads for Loading Conditions.
Symbol
Parameter Conditions Min Typ Max Unit
V
IHDIF
Input High Voltage − CLK_IN
(Note 9)
Differential inputs (single−ended
measurement)
600 1150 mV
V
ILDIF
Input Low Voltage − CLK_IN
(Note 9)
Differential inputs (single−ended
measurement)
V
SS
−
300
300 mV
V
COM
Input Common Mode Voltage −
CLK_IN (Note 9)
Common Mode Input Voltage 300 1000 mV
V
SWING
Input Amplitude − CLK_IN (Note 9) Peak to Peak value 300 1450 mV
dv/dt
Input Slew Rate − CLK_IN (Notes 9
and 10)
Measured differentially 0.4 8 V/ns
I
IN
Input Leakage Current (Note 9)
V
IN
= V
DD
,
V
IN
= GND
−5 5
mA
d
tin
Input Duty Cycle (Note 9) Measurement from differential waveform 45 55 %
J
DIFIn
Input Jitter − Cycle to Cycle (Note 9) Differential Measurement 0 125 ps
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
9. Guaranteed by design and characterization, not tested in production.
10.Slew rate measured through ±75 mV window centered around differential zero.
Table 11. ELECTRICAL CHARACTERISTICS − DIF 0.7 V CURRENT MODE DIFFERENTIAL OUTPUTS
(V
DD
= V
DDA
= 3.3 V ±5%, T
A
= −10°C to +70°C), See Test Loads for Loading Conditions
Symbol
Parameter Conditions Min Typ Max Unit
dV/dt Slew rate (Notes 11, 12 and 13) Scope averaging on 1 4 V/ns
DdV/dt
Slew rate matching
(Notes 11, 12 and 14)
Slew rate matching, Scope averaging on 20 %
DTrf
Rise/Fall Time Matching
(Notes 11, 12 and 18)
Rise/fall matching, Scope averaging off 125 ps
V
High
Voltage High (Note 11)
Statistical measurement on single−ended
signal using oscilloscope math function.
(Scope averaging on)
660 850
mV
V
Low
Voltage Low (Note 11) −150 150
V
max
Max Voltage (Note 11)
Measurement on single ended signal using
Absolute value. (Scope averaging off)
1150
mV
V
min
Min Voltage (Note 11) −300
V
swing
Vswing (Notes 11 and 12) Scope averaging off 300 mV
V
cross_abs
Crossing Voltage (abs)
(Notes 11 and 15)
Scope averaging off 250 550 mV
DV
cross
Crossing Voltage (var)
(Notes 11 and 16)
Scope averaging off 140 mV
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
11. Guaranteed by design and characterization, not tested in production. I
REF
= V
DD
/(3xR
REF
). For R
REF
= 475 W (1%), I
REF
= 2.32 mA. I
OH
= 6 x I
REF
and V
OH
= 0.7 V @ Z
O
= 50 W (100 W differential impedance).
12.Measured from differential waveform.
13.Slew rate is measured through the Vswing voltage range centered around differential 0 V. This results in a ±150 mV window around
differential 0 V.
14.Matching applies to rising and falling edge rate of differential waveform. It is measured using a ±75 mV window centered on the average cross
point where the clock rising meets clock# falling. The median cross point is used to calculate voltage thresholds that the oscilloscope uses
to calculate the slew rate. Measurement taken using a 100 W differential impedance 5” trace PCB.
15.Vcross is defined as voltage where Clock = Clock# measured on a component test board and only applies to the differential rising edge (i.e.
Clock rising and Clock# falling).
16.The total variation of all Vcross measurements in any particular system. Note that this is a subset of V_cross_min/max (V_cross absolute)
allowed. The intent is to limit Vcross induced modulation by setting V_cross_delta to be smaller than V_cross absolute.
17.Measured from single−ended waveform
18.Measured with scope averaging off, using statistics function. Variation is difference between min and max.
