9DB633AFILF datasheet(5/14 Pages) IDT

Part #	9DB633AFILF

Description	Six Output Differential Buffer for PCIe Gen3

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Manufacturer	IDT [Integrated Device Technology]

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IDT® Six Output Differential Buffer for PCIe Gen3

1668C—04/20/11

9DB633

Six Output Differential Buffer for PCIe Gen3

5

Datasheet

Electrical Characteristics - Clock Input Parameters

TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS NOTES

Input High Voltage - DIF_IN

VIHDIF

Differential inputs

(single-ended measurement)

600

800

1150

mV

1

Input Low Voltage - DIF_IN

VILDIF

Differential inputs

(single-ended measurement)

VSS - 300

0

300

mV

1

Input Common Mode

Voltage - DIF_IN

VCOM

Common Mode Input Voltage

300

1000

mV

1

Input Amplitude - DIF_IN

VSWING

Peak to Peak value

300

1450

mV

1

Input Slew Rate - DIF_IN

dv/dt

Measured differentially

0.4

8

V/ns

1,2

Input Leakage Current

IIN

VIN = VDD , VIN = GND

-5

5

uA

1

Input Duty Cycle

dtin

Measurement from differential wavefrom

45

55

%

1

Input Jitter - Cycle to Cycle

JDIFIn

Differential Measurement

0

125

ps

1

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

2Slew rate measured through +/-75mV window centered around differential zero

Electrical Characteristics - DIF 0.7V Current Mode Differential Outputs

TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS NOTES

Slew rate

Trf

Scope averaging on

0.6

2.5

4

V/ns

1, 2, 3

Slew rate matching

∆Trf

Slew rate matching, Scope averaging on

9.5

20

%

1, 2, 4

Voltage High

VHigh

660

740

850

1

Voltage Low

VLow

-150

8

150

1

Max Voltage

Vmax

760

1150

1

Min Voltage

Vmin

-300

-3

1

Vswing

Scope averaging off

300

1506

mV

1, 2

Crossing Voltage (abs)

Vcross_abs

Scope averaging off

250

378

550

mV

1, 5

Crossing Voltage (var)

∆-Vcross

Scope averaging off

54

140

mV

1, 6

2 Measured from differential waveform

6 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.

mV

Statistical measurement on single-ended signal

using oscilloscope math function. (Scope averaging

on)

Measurement on single ended signal using absolute

value. (Scope averaging off)

mV

1Guaranteed by design and characterization, not 100% tested in production. IREF = VDD/(3xR

R). For RR = 475

(1%), IREF = 2.32mA. IOH =

6 x IREF and VOH = 0.7V @ ZO=50 (100Ω differential impedance).

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 calculations.

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).

Electrical Characteristics - Current Consumption

TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS NOTES

Operating Supply Current

IDD3.3OP

All outputs active @100MHz, CL = Full load;

134

150

mA

1

IDD3.3PD

All diff pairs driven

N/A

mA

1

IDD3.3PDZ

All differential pairs tri-stated

N/A

mA

1

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

Powerdown Current

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