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06/30/15

PI6CDBL402B

4 -Output Low Power PCIE GEN 1-2-3 Buffer

Electrical Characteristics–Input/Supply/Common Parameters–Normal Operating

Conditions Cont...

Symbol Parameters

Condition

Min.

Type Max. Units

V

OLSMB

@ I

PULLUP

0.4

V

I

PULLUP

@ V

OL

4

mA

V

DDSMB

3.3V bus voltage

2.7

3.6

V

t

RSMB

(Max VIL - 0.15) to (Min VIH + 0.15)

1000

ns

t

FSMB

(Min VIH + 0.15) to (Max VIL - 0.15)

300

ns

f

MAXSMB

SMBus Operating

Maximum SMBus operating frequency

400

kHz

Note:

1. Guaranteed by design and characterization, not 100% tested in production.

2. Control input must be monotonic from 20% to 80% of input swing. Input Frequency Capacitance

3. Time from deassertion until outputs are >200 mV

4. DIF_IN input

5. The differential input clock must be running for the SMBus to be active

o

C; VDD = 3.3V+/-10%;

VDDO = 3.3V+/-10%, VDDO = 2.5V+/-10%, VDDO = 1.8V+/-10%, See Test Loads for Loading Conditions)

Symbol

Parameters

Condition

Min.

Type Max.

Units

Trf

1.1

2

4.5

V/ns

V

HIGH

oscilloscope math function. (Scope averaging on)

660

950

mV

V

LOW

-150

200

mV

Vmax

Measurement on single ended signal using

absolute value. (Scope averaging off)

1150

mV

Vmin

-300

mV

Vswing

Scope averaging off

300

mV

Crossing Voltage

(abs)

Vcross_abs

Scope averaging off

250

550

mV

Crossing Voltage

(var)

Δ-Vcross

Scope averaging off

140

mV

Note:

1. Guaranteed by design and characterization, not 100% tested in production.

2. Measured from differential waveform

3. Slew rate is measured through the Vswing voltage range centered around differential 0V. This results in a +/-150mV window around differential 0V.

4. Matching applies to rising edge rate for Clock and falling edge rate for Clock#. It is measured using a +/-75mV window centered on the average cross point

where Clock rising meets Clock# falling. The median cross point is used to calculate the voltage thresholds the oscilloscope is to use for the edge rate calcula-

tions.

5. 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).

6. The total variation of all Vcross measurements in any particular system. Note that this is a subset of Vcross_min/max (Vcross absolute) allowed. The intent is

to limit Vcross induced modulation by setting Δ-Vcross to be smaller than Vcross absolute.

7. At default SMBus settings.

15-0083